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WO2024203264A1 - Dispositif de mesure de diaphonie, procédé de mesure de diaphonie et programme - Google Patents

Dispositif de mesure de diaphonie, procédé de mesure de diaphonie et programme Download PDF

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Publication number
WO2024203264A1
WO2024203264A1 PCT/JP2024/009472 JP2024009472W WO2024203264A1 WO 2024203264 A1 WO2024203264 A1 WO 2024203264A1 JP 2024009472 W JP2024009472 W JP 2024009472W WO 2024203264 A1 WO2024203264 A1 WO 2024203264A1
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WIPO (PCT)
Prior art keywords
image
crosstalk
measuring device
optical system
measurement
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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PCT/JP2024/009472
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English (en)
Japanese (ja)
Inventor
諭司 三谷
祐治 中畑
貴之 栗原
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Sony Group Corp
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Sony Group Corp
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Filing date
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Publication of WO2024203264A1 publication Critical patent/WO2024203264A1/fr
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/305—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/366—Image reproducers using viewer tracking
    • H04N13/376—Image reproducers using viewer tracking for tracking left-right translational head movements, i.e. lateral movements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers

Definitions

  • This technology relates to a crosstalk measurement device, a crosstalk measurement method, and a program for a light field display.
  • An eye-tracking light field display tracks the position of the user's eyes facing the display from the camera image, and generates two-viewpoint images (one image for the left eye and one image for the right eye) that correspond to the positions of both eyes based on the eye positions.
  • a stereoscopic display image is generated based on the eye position and the two-viewpoint images to distribute the two-viewpoint images to the positions of both eyes, and is displayed on the display.
  • the user can view a three-dimensional model in stereoscopic view with the naked eye by viewing each of the two-viewpoint images with their right and left eyes.
  • Crosstalk is a phenomenon in which images from both eyes leak together (the image for the left eye is seen by the right eye, and the image for the right eye is seen by the left eye).
  • Crosstalk can be measured using a crosstalk measurement device placed opposite the light field display.
  • Patent Document 1 discloses a crosstalk measurement device that displays a crosstalk evaluation pattern on a 3D display, moves a camera placed behind a face mask with holes for the eyes at any speed, and calculates crosstalk by photographing the evaluation pattern.
  • Patent Document 2 discloses a crosstalk measurement device that displays a crosstalk evaluation pattern on a stereoscopic display device, allowing the user to visually determine crosstalk.
  • the objective of this technology is to provide a crosstalk measurement device, a crosstalk measurement method, and a program that are capable of measuring crosstalk with high accuracy.
  • a crosstalk measuring device includes a measuring device and a virtual image display unit.
  • the measuring device measures the luminance of light incident through an optical system.
  • the virtual image display unit is located in front of the optical system when viewed from the optical axis direction of the optical system, and displays a virtual image of a face so that the eyes are superimposed on the optical system when viewed from the optical axis direction.
  • the virtual image display unit may align the eye position with the entrance pupil of the optical system.
  • the virtual image display unit may include a real image presentation section that is arranged so as not to overlap with the optical system when viewed from the optical axis direction and presents a real image of the face, and a combiner that is arranged so as to overlap with the optical system when viewed from the optical axis direction and reflects light that forms the real image and is incident from the real image presentation section to generate the virtual image.
  • the measuring device is configured to be movable,
  • the virtual image display unit may move the virtual image in accordance with a position of the measuring instrument.
  • the virtual image display unit includes a real image display unit that is arranged so as not to overlap with the optical system when viewed from the optical axis direction and displays a real image of the face, and a combiner that is arranged so as to overlap with the optical system when viewed from the optical axis direction and reflects light that forms the real image and is incident from the real image display unit to generate the virtual image.
  • the real image presentation unit and the combiner may move together with the measuring device.
  • the virtual image display unit includes a real image display unit that is arranged so as not to overlap with the optical system when viewed from the optical axis direction and displays a real image of the face, and a combiner that is arranged so as to overlap with the optical system when viewed from the optical axis direction and reflects light that forms the real image and is incident from the real image display unit to generate the virtual image.
  • the real image presentation unit moves together with the measuring device;
  • the combiner may be fixed.
  • the virtual image display unit includes a real image display unit that is arranged so as not to overlap with the optical system when viewed from the optical axis direction and displays a real image of the face, and a combiner that is arranged so as to overlap with the optical system when viewed from the optical axis direction and reflects light that forms the real image and is incident from the real image display unit to generate the virtual image.
  • the real image presentation unit and the combiner may be fixed.
  • the measuring device may be shielded except for the optical system when viewed from the optical axis direction.
  • the combiner may be an acrylic plate or a glass plate.
  • the combiner may be a holographic optical element.
  • the real image presentation unit may present a three-dimensional image of the face as the real image.
  • the real image presentation unit may present a video of the face as the real image.
  • a crosstalk measuring method includes:
  • the stereoscopic image display device includes a position detection unit that detects a detection position that is the position of the eyes of a face facing a display, a viewpoint image generation unit that generates a left-eye image and a right-eye image, and a display image generation unit that generates a stereoscopic display image in accordance with the detection position, in which, when displayed on the display, the left-eye image is viewed by the left eye of the face and the right-eye image is viewed by the right eye of the face, the crosstalk measuring device includes a measuring device for measuring the luminance of light incident through an optical system, and a virtual image display unit that is located in front of the optical system as viewed from an optical axis direction of the optical system and displays a virtual image of a face such that the eyes are superimposed on the optical system as viewed from the optical axis direction;
  • the crosstalk of the display is evaluated based on the luminance measured by the measuring device
  • the viewpoint image generation unit generates a left-eye measurement image, which is an image of a measurement pattern, as the left-eye image, and generates a right-eye measurement image, which is an image of a measurement pattern, as the right-eye image;
  • the stereoscopic display image generation unit generates a measurement display image based on the left eye measurement image and the right eye measurement image;
  • the measuring device may measure the luminance of the measurement display image.
  • the viewpoint image generating unit may generate the left eye measurement image and the right eye measurement image by placing a measurement pattern only in the measurement area that is the measurement target of the measuring device.
  • the virtual image display unit includes a real image display unit that is arranged so as not to overlap with the optical system when viewed from the optical axis direction and displays a real image of the face, and a combiner that is arranged so as to overlap with the optical system when viewed from the optical axis direction and reflects light that forms the real image and is incident from the real image display unit to generate the virtual image.
  • the angle of view of a camera included in the stereoscopic image display device and used by the position detection unit to detect the detection position may be limited so that the real image presentation unit is not included.
  • a program comprises: A stereoscopic image display device and a crosstalk measuring device are disposed opposite each other,
  • the stereoscopic image display device includes a position detection unit that detects a detection position that is the position of the eyes of a face facing a display, a viewpoint image generation unit that generates a left eye image and a right eye image, and a display image generation unit that generates a display image in accordance with the detection position, such that when the left eye image is displayed on the display, the left eye image is viewed by the left eye of the face, and the right eye image is viewed by the right eye of the face,
  • the crosstalk measuring device includes a measuring device for measuring the luminance of light incident through an optical system, and a virtual image display unit that is located in front of the optical system as viewed from the optical axis direction of the optical system and displays a virtual image of a face so that the eyes are superimposed on the optical system as viewed from the optical axis direction,
  • the information includes a measuring device for measuring the luminance
  • FIG. 1 is a perspective view of a stereoscopic image display device according to an embodiment of the present technology.
  • 3A and 3B are schematic diagrams showing viewpoint images in the stereoscopic image display device.
  • 2 is a schematic diagram showing viewpoints in the stereoscopic image display device.
  • FIG. 3A and 3B are schematic diagrams illustrating the display of stereoscopic images in the stereoscopic image display device.
  • 4 is a schematic diagram showing a process for movement of a viewpoint in the stereoscopic image display device.
  • FIG. FIG. 2 is a block diagram showing a functional configuration of the stereoscopic image display system.
  • FIG. FIG. 2 is a side view of the crosstalk measuring device.
  • FIG. 2 is a side view of a measuring device included in the crosstalk measuring device.
  • 2 is a perspective view of a virtual image display unit provided in the crosstalk measuring device.
  • FIG. 5A to 5C are schematic diagrams showing the operation of a combiner provided in the virtual image display unit.
  • 4 shows an example of a virtual image displayed by the virtual image display unit.
  • 2 is a block diagram showing a functional configuration of a control device provided in the crosstalk measurement system.
  • FIG. 11 is an example of a left-eye measurement image, a right-eye measurement image, and a measurement display image.
  • 3 is a schematic diagram showing a measurement area of a display provided in the stereoscopic image display device.
  • FIG. 2 is a schematic diagram showing a state in which a real image is placed in the measuring device instead of a virtual image. This is an example of the real image when the optical system of the measuring device is large. This is an example of the real image when the optical system of the measuring device is small.
  • 4 is an example of a left eye measurement image and a right eye measurement image. 4 is a flowchart of dynamic crosstalk measurement by the crosstalk measurement system.
  • FIG. 2 is a schematic diagram of dynamic crosstalk measurement using the crosstalk measurement system.
  • FIG. 2 is a side view of the crosstalk measuring device equipped with a shield. 13 is an example of a left-eye measurement image and a right-eye measurement image in which a measurement pattern is arranged only in a measurement region.
  • FIG. 2 is a side view of the crosstalk measurement device including a combiner that is a HOE.
  • FIG. 2 is a schematic diagram of the crosstalk measurement system including a mask.
  • 4 is a block diagram showing a hardware configuration of a control device provided in the crosstalk measurement system.
  • FIG. 1 is a graph showing crosstalk values measured by crosstalk measuring devices according to examples and comparative examples of the present technology.
  • the crosstalk measurement system according to this embodiment is a system for measuring crosstalk in a stereoscopic image display device.
  • the stereoscopic image display device will first be described.
  • FIG. 1 is a schematic diagram showing the configuration of a stereoscopic image display device 110 according to this embodiment.
  • the stereoscopic image display device 110 is a display device called a light field display that performs stereoscopic display of a three-dimensional model M, and displays a stereoscopic display image that is dynamically generated according to the position of the user's viewpoint.
  • the stereoscopic display image is composed of viewpoint images of the three-dimensional model M viewed from the right eye and the left eye, respectively.
  • the viewpoint image includes a left-eye image VL and a right-eye image VR .
  • the left-eye image VL is an image of the three-dimensional model M seen from the position of the left eye E L
  • the right-eye image VR is an image of the three-dimensional model M seen from the position of the right eye E R.
  • the stereoscopic image display device 110 displays the left-eye image VL toward the left eye of the user and the right-eye image VR toward the right eye of the user, thereby enabling stereoscopic viewing of the three-dimensional model M with the naked eye.
  • the stereoscopic image display device 110 comprises a housing 111, a camera 112, and a display 113.
  • the housing 111 is a housing that houses each part of the stereoscopic image display device.
  • the camera 112 photographs the face of a user viewing the display 113.
  • the camera 112 is appropriately positioned in a position where it can photograph the user's face, for example, in a position above the center of the display 113.
  • a digital camera equipped with an image sensor such as a CMOS (Complementary Metal-Oxide Semiconductor) sensor or a CCD (Charge Coupled Device) sensor is used.
  • the specific configuration of the camera 112 is not limited.
  • Display 113 displays a stereoscopic image.
  • FIG. 3 is a schematic diagram of display 113. As shown in the figure, display 113 includes a display panel 114 and a lenticular lens 115.
  • Display panel 114 is a panel that displays a stereoscopic image, and may be a liquid crystal panel, an OLED (organic light emitting diode) panel, or the like.
  • Lenticular lens 115 is attached to the surface of display panel 114 and is a lens that refracts light incident from display panel 114 in a specific direction.
  • Lenticular lens 115 has a structure in which semi-cylindrical convex lenses are arranged adjacent to each other. As shown in FIG. 3, light emitted from each pixel P of display panel 114 is spatially distributed by passing through lenticular lens 115, and the user sees different images depending on the angle at which display 113 is viewed (hereinafter, viewing angle).
  • FIG. 3 shows six viewpoints with different viewing angles (angle in the figure) and the luminance of each pixel according to the viewing angle (luminance in the figure).
  • the number of viewpoints is not limited to six and can be any number.
  • FIG. 4 is a schematic diagram showing the allocation of viewpoint images by the lenticular lens 115. As shown in the figure, when a left-eye image VL is displayed at pixel P L and a right-eye image V R is displayed at pixel P R according to the positions of the left eye E L and the right eye E R , only the left-eye image V L is viewed at the left eye E L and only the right-eye image V R is viewed at the right eye E R. This allows the user to stereoscopically view the three-dimensional model M on the display 113 as shown in FIG. 2.
  • FIG. 5 is a schematic diagram showing the process of moving the positions of the left eye EL and the right eye ER .
  • FIG. 5(a) shows a state in which the left eye EL sees the left eye image VL , and the right eye ER sees the right eye image VR .
  • FIG. 5(b) when the positions of the left eye EL and the right eye ER move, the pixel P that becomes the pixel P L and the pixel P R is changed, and the viewing angle of the left eye image VL and the right eye image V R is changed.
  • the left eye EL and the right eye ER move, the left eye EL can see the left eye image VL , and the right eye ER can see the right eye image V R.
  • FIG. 6 is a block diagram showing the functional configuration of stereoscopic image display device 110.
  • stereoscopic image display device 110 includes a position detection unit 121, a viewpoint image generation unit 122, and a stereoscopic display image generation unit 123. These configurations are functional configurations realized by cooperation between hardware and software.
  • the position detection unit 121 detects the position of the user's eyes facing the display 113 in real time from the image captured by the camera 112 (hereinafter, the captured image).
  • the position of the user's eyes detected by the position detection unit 121 will be referred to as the "detected position”.
  • eye position includes both the right eye position and the left eye position.
  • the position detection unit 121 can recognize the user's eyes and detect the detection position using face recognition technology on the captured image.
  • the position detection unit 121 supplies the detected position to the viewpoint image generation unit 122 and the stereoscopic display image generation unit 123.
  • the viewpoint video generating unit 122 generates a viewpoint video according to the detection position.
  • the viewpoint video generating unit 122 acquires the three-dimensional model M by reading from a storage device or by communication. Furthermore, the viewpoint video generating unit 122 renders the three-dimensional model M, and generates a viewpoint video including a left-eye video VL which is a video of the three-dimensional model M viewed from the position of the left eye E L and a right-eye video V R which is a video of the three-dimensional model M viewed from the position of the right eye E R, as shown in FIG . 2.
  • the viewpoint video generating unit 122 uses the detection position as the positions of the left eye E L and the right eye E R.
  • the viewpoint video generating unit 122 supplies the generated viewpoint video to the stereoscopic display video generating unit 123.
  • the stereoscopic display image generating unit 123 converts the viewpoint image into a stereoscopic display image according to the detected position. As shown in Fig. 4, the stereoscopic display image generating unit 123 arranges the left eye image VL and the right eye image VR according to the positions of the left eye E L and the right eye E R to generate a stereoscopic display image. At this time, the stereoscopic display image generating unit 123 uses the detected positions as the positions of the left eye E L and the right eye E R. The stereoscopic display image generating unit 123 supplies the generated stereoscopic display image to the display 113 and displays it on the display 113.
  • the user can view the left-eye image VL with the left eye E L and the right-eye image V R with the right eye E R , enabling the user to stereoscopically view the three-dimensional model M on the display 113.
  • the position detection unit 121 detects the new detection positions.
  • the viewpoint image generation unit 122 and the stereoscopic display image generation unit 123 generate stereoscopic display images according to these positions, as described above.
  • the three-dimensional image display device 110 has the above-mentioned configuration.
  • the functional configuration of the three-dimensional image display device 110 described above may be realized by an information processing device connected to the three-dimensional image display device 110.
  • Fig. 7 is a schematic diagram of the crosstalk measurement system according to this embodiment.
  • the crosstalk measurement system 100 includes a stereoscopic image display device 110, a crosstalk measurement device 150, and a control device 170.
  • the crosstalk measuring device 150 is disposed facing the display 113 of the stereoscopic image display device 110.
  • the direction in which the stereoscopic image display device 110 is located relative to the crosstalk measuring device 150 is referred to as the Z direction
  • the direction parallel to the display 113 of the stereoscopic image display device 110 and perpendicular to the Z direction is referred to as the X direction
  • the direction perpendicular to the Z direction and the X direction is referred to as the Y direction.
  • the X direction and Z direction are, for example, horizontal directions
  • the Y direction is, for example, vertical directions.
  • FIG. 8 is a perspective view of the crosstalk measuring device 150
  • FIG. 9 is a side view of the crosstalk measuring device 150.
  • the crosstalk measuring device 150 includes a measuring device 151, a virtual image display unit 152, a base plate 153, a slider 154, and a shade 155.
  • the measuring device 151 measures the luminance.
  • FIG. 10 is a side view of the measuring device 151.
  • the measuring device 151 is equipped with an optical system 156 and a light receiving element 157.
  • the optical system 156 is an optical system such as a lens and an aperture, and collects incident light to form an entrance pupil H as shown in FIG. 10.
  • the stereoscopic image display device 110 is disposed in the direction of the optical axis of the optical system 156, which coincides with the Z direction.
  • the light receiving element 157 detects the amount of light collected by the optical system 156.
  • the measuring device 151 can be a one-dimensional luminance meter that measures the luminance of a point, specifically a "CS-2000A (manufactured by Konica Minolta)."
  • the measuring device 151 can also be a two-dimensional luminance meter that measures the luminance of a surface. When a two-dimensional luminance meter is used, it becomes possible to evaluate crosstalk two-dimensionally.
  • the measuring device 151 is configured to be movable by a slider 154.
  • the virtual image display unit 152 displays a virtual image of the face.
  • FIG. 11 is a perspective view of the virtual image display unit 152.
  • the virtual image display unit 152 is located in the optical axis direction (Z direction) of the optical system 156, i.e., in front of the optical system 156 when viewed from the stereoscopic image display device 110 side, in other words, between the optical system 156 and the stereoscopic image display device 110.
  • the virtual image display unit 152 displays a virtual image of the face so that the eyes are superimposed on the optical system 156.
  • the virtual image display unit 152 includes a real image presentation unit 158 and a combiner 159, as shown in FIG. 11.
  • the real image presenting unit 158 is arranged so as not to overlap with the optical system 156 in the optical axis direction (Z direction) of the optical system 156, i.e., when viewed from the stereoscopic image display device 110 side, and is configured so as not to block the light emitted from the stereoscopic image display device 110 and entering the optical system 156.
  • the real image presenting unit 158 can be arranged below the measuring device 151 as shown in FIG. 9.
  • the real image presenting unit 158 presents a real image of the face.
  • Fig. 11 shows a real image SJ presented by the real image presenting unit 158.
  • the real image presenting unit 158 is a display such as an LCD (liquid crystal display) or an OLED (organic light emitting diode) and can be capable of displaying the real image SJ .
  • the real image presenting unit 158 may also support a still image such as a photograph as the real image SJ .
  • the crosstalk measuring device 150 is used in a darkroom, the real image presenting unit 158 needs to have an illumination function for still images.
  • the combiner 159 generates a virtual image of the face.
  • the combiner 159 is positioned in the optical axis direction (Z direction) of the optical system 156, i.e., so as to overlap with the optical system 156 when viewed from the stereoscopic image display device 110 side.
  • the combiner 159 is configured to reflect the light incident from the real image presentation unit 158 toward the stereoscopic image display device 110, and to transmit the light emitted from the stereoscopic image display device 110.
  • FIG. 12 is a schematic diagram showing the operation of the combiner 159.
  • the combiner 159 transmits the light LD .
  • the combiner 159 reflects the light LJ toward the stereoscopic image display device 110.
  • a virtual image S V is formed at a position symmetrical to the real image SJ with respect to the combiner 159.
  • the combiner 159 may be any device that transmits the light LD and reflects the light LJ , and may be, for example, a half mirror.
  • FIG. 13 is a schematic diagram showing the virtual image S V as viewed from the stereoscopic image display device 110.
  • the combiner 159 is located in front of the measuring device 151 in the optical axis direction (Z direction) of the optical system 156, i.e., when viewed from the stereoscopic image display device 110, so that the virtual image S V is displayed so as to overlap the measuring device 151 from the front, as shown in FIG. 13.
  • the position of the virtual image S V in the XY direction is the optical axis direction (Z direction) of the optical system 156, i.e., the position where the eye (left eye or right eye) overlaps the optical system 156 as viewed from the stereoscopic image display device 110.
  • the virtual image S V is arranged so that the left eye E L overlaps the optical system 156.
  • the position of the virtual image S V in the Z direction is preferably a position that coincides with the entrance pupil H of the optical system 156.
  • the eye (left eye or right eye) of the virtual image S V coincides with the optical system 156 in the X direction, Y direction, and Z direction.
  • the virtual image display unit 152 is configured to be movable integrally with the measuring device 151 by the slider 154, and moves the virtual image S V according to the position of the measuring device 151.
  • the base plate 153 is fixed to the stereoscopic image display device 110 and supports a slider 154.
  • the slider 154 (see FIG. 8) supports the measuring device 151, the virtual image display unit 152, and the shade 155, and moves them along the X direction.
  • the configuration of the slider 154 is not particularly limited.
  • the shade 155 (see FIG. 8) is disposed on the optical system 156, and blocks illumination light from above. If the crosstalk measuring device 150 is used in a darkroom, the shade 155 does not need to be provided.
  • the crosstalk measuring device 150 has the above-mentioned configuration.
  • the configuration of the crosstalk measuring device 150 is not limited to that described above, and it is sufficient that the crosstalk measuring device 150 has at least the measuring device 151 and the virtual image display unit 152.
  • the control device 170 controls the crosstalk measuring device 150.
  • FIG. 14 is a block diagram showing the functional configuration of the control device 170. As shown in the figure, the control device 170 includes a slider control unit 171, a measuring device control unit 172, and a crosstalk evaluation unit 173.
  • the control device 170 is an information processing device such as a PC (personal computer), and these functional configurations are realized by the cooperation of software and hardware.
  • the slider control unit 171 controls the slider 154. As shown in FIG. 14, the slider control unit 171 acquires "position data" indicating the position of the slider 154 from the slider 154. The slider control unit 171 also supplies an "operation command" to the slider 154.
  • the operation command is a command that specifies the movement speed of the slider 154, etc.
  • the meter control unit 172 controls the meter 151. As shown in FIG. 14, the meter control unit 172 supplies "settings" and "trigger commands" to the meter 151.
  • the trigger command is a command that instructs the meter 151 to start measuring luminance.
  • the crosstalk evaluation unit 173 evaluates the crosstalk in the display 113.
  • the crosstalk evaluation unit 173 can acquire "luminance data", which is data on the luminance measured by the measurement device 151, from the measurement device 151 and evaluate the crosstalk based on the luminance data. Details will be described later.
  • the control device 170 has the above-described configuration. Note that the functional configuration of the control device 170 may be realized by multiple information processing devices, or may be realized via a computer network.
  • the viewpoint image generating unit 122 generates the left eye image VL and the right eye image VR (see FIG. 2) according to the detection position, which is the position of the eyes detected by the position detecting unit 121.
  • the stereoscopic display image generating unit 123 arranges the left eye image VL and the right eye image VR according to the detection position to generate a stereoscopic display image (see FIG. 4).
  • the user can stereoscopically view the three-dimensional model M on the display 113 because the left eye E L views the left eye image VL and the right eye E R views the right eye image VR .
  • a crosstalk measuring device 150 When measuring crosstalk, a crosstalk measuring device 150 is disposed opposite the display 113 as shown in FIG. 7, and a virtual image S V (see FIG. 13) is displayed on the virtual image display unit 152.
  • the stereoscopic image display device 110 displays a display image for crosstalk measurement (hereinafter, measurement display image) on the display 113.
  • FIG. 15 shows a left-eye measurement image G L and a right-eye measurement image G R generated by the viewpoint image generating unit 122 and a measurement display image V T generated by the stereoscopic display image generating unit 123 during crosstalk measurement.
  • the left-eye measurement image G L is an image of a measurement pattern, and can be an entirely black image as shown in the figure.
  • the right-eye measurement image G R is also an image of a measurement pattern, and can be an entirely white image as shown in the figure.
  • the stereoscopic display image generating unit 123 alternately arranges the left-eye measurement image G L and the right-eye measurement image G R (see FIG. 4) according to the detection position in the same manner as in the generation of the stereoscopic display image, and generates a measurement display image V T as shown in the figure.
  • the detected positions are the positions of the eyes (left eye E L and right eye E R ) detected by the position detection unit 121 relative to the virtual image S V (see FIG. 13 ) displayed by the virtual image display unit 152. That is, the stereoscopic display image generation unit 123 generates the measurement display image V T according to the positions of the eyes in the virtual image S V.
  • the measuring device 151 measures the luminance of the light L D (see FIG. 12) collected by the optical system 156.
  • the optical system 156 is disposed at a position where it overlaps with the eye (here, the left eye E L ) in the virtual image S V as described above. Therefore, the detection position of the left eye E L detected by the position detection unit 121 coincides with the position of the optical system 156.
  • the stereoscopic display image generating unit 123 generates the measurement display image V T so that the left eye measurement image G L is viewed from the position of the left eye E L and the right eye measurement image G R is viewed from the position of the right eye E R , so that only the left eye measurement image G L should be viewed from the position of the optical system 156. In this case, since the left eye measurement image G L is black, the luminance measured by the measuring device 151 is small.
  • the right-eye test image G R will also be viewed from the position of the left eye E L , i.e., the position of the optical system 156. In this case, since the right-eye test image G R is white, the luminance measured by the measuring device 151 will be large. Therefore, it is possible to measure crosstalk in the display 113 based on the luminance measured by the measuring device 151.
  • static crosstalk can be measured by not operating the slider 154 and fixing the positions of the measuring device 151 and the virtual image S V with respect to the display 113 to measure crosstalk.
  • dynamic crosstalk can be measured by operating the slider 154 and measuring crosstalk while moving the positions of the measuring device 151 and the virtual image S V with respect to the display 113.
  • FIG. 16 is a schematic diagram showing the measurement of static crosstalk and dynamic crosstalk.
  • the luminance of the measurement area A of the display 113 facing the optical system 156 is measured, i.e., the static crosstalk in the measurement area A is measured.
  • the luminance of the measurement area A of the display 113 whose length is the movement speed x exposure time is measured, i.e., the dynamic crosstalk in the measurement area A is measured.
  • the crosstalk measurement device 150 the virtual image S V is displayed by the virtual image display unit 152, and the eye (left eye E L or right eye E R ) of the virtual image S V is superimposed on the optical system 156 (see FIG. 13 ).
  • This allows the stereoscopic image display device 110 to generate a measurement display image V T in accordance with the detection position of the eye superimposed on the optical system 156, and the crosstalk measurement device 150 can measure crosstalk based on the luminance measured via the optical system 156.
  • a real image of a face is placed on the measuring device 151.
  • Fig. 17 is a schematic diagram showing the measuring device 151 on which a real image TJ is placed, and Figs. 18 and 19 show the real image TJ in this case.
  • the real image TJ is a photograph of a face, or the like.
  • the left eye EL of the real image TJ is replaced by the image of the optical system 156, so that the stereoscopic image display device 110 may not be able to accurately detect the left eye EL .
  • the stereoscopic image display device 110 cannot generate a measurement display image VT corresponding to the position of the left eye EL , making it difficult to accurately measure crosstalk.
  • it is more suitable for crosstalk measurement if the real image TJ is close to the entrance pupil H of the optical system 156, but in this case, the optical system 156 protrudes from the real image TJ as shown in FIG. 17, and this also makes it impossible for the stereoscopic image display device 110 to accurately detect the left eye EL .
  • the size of the optical system 156 by making the size of the optical system 156 sufficiently small, it is also possible to expose the optical system 156 within the left eye EL of the real image TJ , in which case the left eye EL can be detected by the stereoscopic image display device 110 without any problems.
  • the size of the optical system 156 is small, the luminance detection sensitivity and detection accuracy become insufficient, and the accuracy of the crosstalk measurement decreases. Therefore, when the real image TJ is used, it is difficult to perform accurate crosstalk measurement no matter what kind of optical system 156 is used.
  • the eye in the virtual image S V is not replaced by the optical system 156 as shown in Fig. 13, so that the left eye E L can be detected without any problem by the stereoscopic image display device 110. Therefore, it becomes possible to use an optical system 156 with a large size, and crosstalk measurement can be performed with high accuracy.
  • FIG. 20 is a schematic diagram showing a left-eye measurement image G L and a right-eye measurement image G R for measuring crosstalk in the left eye E L.
  • the virtual image S V is displayed by the virtual image display unit 152, and the left eye E L of the virtual image S V is superimposed on the optical system 156 (see FIG. 13). Furthermore, the display 113 of the stereoscopic image display device 110 is opposed to the optical system 156, and a measurement display image V T (see FIG. 15) generated from the left eye measurement image G L and the right eye measurement image G R shown in FIG. 20 is displayed on the display 113.
  • the measuring instrument 151 measures the luminance of the incident light from the display 113 via the optical system 156.
  • the luminance value measured when the left eye measurement image G L and the right eye measurement image G R are both white images is defined as luminance value LW
  • the luminance value measured when the left eye measurement image G L and the right eye measurement image G R are both black images is defined as luminance value L B
  • the luminance value measured when the left eye measurement image G L is a black image and the right eye measurement image G R is a white image is defined as luminance value L LBRW .
  • the crosstalk value of the left eye E L can be calculated by the following (Equation 1).
  • Crosstalk measurement at the right eye ER can be performed by superimposing the right eye ER of the virtual image S V on the optical system 156.
  • the left eye measurement image G L and the right eye measurement image G R can be performed in the same manner as the crosstalk measurement at the left eye EL , with the left eye measurement image G L being a white image and the right eye measurement image G R being a black image in the test pattern 3. Note that when measuring crosstalk at the left eye EL and the right eye ER, it is also possible to use test pattern 3 with the left and right reversed instead of test pattern 1.
  • Fig. 21 is a flow chart showing dynamic crosstalk measurement by the crosstalk measurement system 100
  • Fig. 22 is a schematic diagram showing dynamic crosstalk measurement.
  • the virtual image display unit 152 displays the virtual image S V (St101).
  • the slider control unit 171 When the speed profile of the slider 154 is set in the control device 170 (see FIG. 14), the slider control unit 171 generates an operation command for the slider 154 and supplies it to the slider 154 (St102).
  • the measuring instrument control unit 172 supplies the setting to the measuring instrument 151 (St102).
  • the stereoscopic image display device 110 causes the display 113 to display the measurement display image V T (St102).
  • the operation of the slider 154 starts (St104).
  • the slider 154 detects its own position (St105) and supplies the position data to the slider control unit 171 at any time (St105).
  • the measurement device control unit 172 determines whether the slider 154 is at the measurement start position based on the position data (St106).
  • the slider 154 accelerates when it starts to move, then becomes at a constant speed, and decelerates when it stops moving.
  • the measurement device control unit 172 controls the measurement device 151 so that while moving at a constant speed, it measures the luminance of measurement area A, which is a line of a constant width relative to the center of the display 113, at a specified exposure time. Measurement area A has a length of movement speed x exposure time.
  • Figure 22 shows the measurement start position F and measurement area A with length K. Length K is, for example, 60 mm.
  • the brightness can be measured by changing the speed of the slider 154.
  • the measurement device control unit 172 performs the measurement by changing the exposure time according to the speed so that the measurement area is equal regardless of the speed. If the exposure time becomes long at low speeds and the output of the light receiving element 157 becomes saturated, an ND (neutral density) filter is attached to the optical system 156 to reduce the amount of light before performing the measurement, and the brightness is calculated by dividing it by the actual measured transmittance.
  • ND neutral density
  • the crosstalk evaluation unit 173 acquires luminance data from the measuring device 151 (St108). If there is a next measurement (St109; Yes), the operation is repeated from the speed profile of the slider 154 and the setting of the measuring device 151 (St102). The next measurement is, for example, a measurement using another test pattern (see FIG. 20) or a measurement with a changed speed of the slider 154. If there is no next measurement (St109; No), the measurement ends (St110), and the crosstalk evaluation unit 173 evaluates the crosstalk of the display 113. The crosstalk evaluation unit 173 can calculate the crosstalk value using, for example, the above (Equation 1) and evaluate the crosstalk.
  • the crosstalk measurement system 100 can measure the dynamic crosstalk of the display 113 in the manner described above. Note that when measuring the static crosstalk of the display 113, the slider 154 is not moved, and steps other than those related to the operation of the slider 154 (St104 to St106) are executed.
  • the crosstalk measuring device 150 is provided with the slider 154 (see FIG. 8 ) that slides the measuring device 151 and the virtual image display unit 152, but the slider 154 may slide only the measuring device 151 and the real image display unit 158.
  • the combiner 159 is fixed to the base 153 and has a wide structure along the sliding direction (X direction) of the slider 154, so that the virtual image S V can be displayed according to the positions of the measuring device 151 and the real image display unit 158. With this configuration, it is possible to suppress vibration of the virtual image S V caused by vibration of the combiner 159.
  • the slider 154 may be one that slides only the measuring device 151 and the combiner 159.
  • the real image presenting unit 158 is fixed to the base plate 153, and by making it have a wide structure along the sliding direction (X direction) of the slider 154, it is possible to display the virtual image S V according to the positions of the measuring device 151 and the combiner 159.
  • the slider 154 may be one that slides only the measuring device 151.
  • the real image presenting unit 158 and the combiner 159 are fixed to the base plate 153, and by making it have a wide structure along the sliding direction (X direction) of the slider 154, it is possible to display the virtual image S V according to the position of the measuring device 151.
  • the crosstalk measuring device 150 may also include a shield.
  • Fig. 23 is a side view of the crosstalk measuring device 150 including a shield 160. As shown in the figure, the shield 160 is attached to the measuring device 151 and shields the measuring device 151 except for the optical system 156.
  • the shield 160 can be, for example, a black plate-like member provided with an opening for exposing the optical system 156.
  • the measuring device 151 or the background may be reflected behind the virtual image S V , which may hinder the detection of the face or eyes by the position detection unit 121.
  • the shielding body 160 By shielding the parts of the measuring device 151 other than the optical system 156 with the shielding body 160, such reflections can be avoided and the accuracy of the detected position can be improved.
  • the viewpoint image generating unit 122 (see FIG. 6) generates the left eye measurement image G L and the right eye measurement image G R for crosstalk measurement, and the stereoscopic display image generating unit 123 generates the measurement display image V T from these images.
  • the viewpoint image generating unit 122 can generate the left eye measurement image G L and the right eye measurement image G R by arranging the measurement pattern only in the measurement area A (see FIG. 16) which is the area where the luminance is measured on the display 113.
  • the viewpoint image generator 122 can generate a left eye measurement image G L and a right eye measurement image G R by arranging a measurement pattern only in the measurement area A. This is effective when the display 113 is a display whose maximum display luminance changes according to the size of the display area, such as an OLED.
  • the worst condition for crosstalk is when the luminance of the light incident on the eye being measured is the minimum and the luminance of the light incident on the eye not being measured is the maximum. Therefore, as shown in Fig. 24, the image for displaying white out of the left eye measurement image G L and the right eye measurement image G R displays white, which is a measurement pattern, only in the measurement area A. This maximizes the luminance of the light incident on the eye not being measured, making it possible to measure crosstalk under the worst condition.
  • the combiner 159 reflects the light LJ and forms a virtual image S V.
  • the combiner 159 may be a transparent member that transmits most of the light LD , such as an acrylic plate or a glass plate.
  • the combiner 159 may also be a holographic optical element (HOE).
  • HOE holographic optical element
  • Figure 25 is a schematic diagram showing the operation of the combiner 159, which is a HOE.
  • the HOE is an element that can reflect light incident from a specific direction in a specific direction, and has high transmittance for other light. Therefore, as shown in Figure 25, since the light is reflected in a direction different from the regular reflection, the setting angle of the combiner 159 can be increased, making it possible to miniaturize the crosstalk measuring device 150 and achieving both high transmittance and high reflectance.
  • FIG. 26 is a schematic diagram of the crosstalk measuring system 100 including a mask 161 and a mask 162.
  • the mask 161 is provided at the tip of the real image presenting unit 158, and the mask 162 is provided on the lens of the camera 112.
  • the masks 161 and 162 are members that do not have optical transparency, and as shown in the figure, they limit the angle of view of the camera 112 in the Y direction from angle of view ⁇ 1 to angle of view ⁇ 2. Note that only one of the masks 161 and 162 may be provided.
  • the real image S J displayed on the real image presentation unit 158 may be reflected in the camera 112, and the position detection unit 121 may erroneously detect the real image S J. Therefore, by limiting the angle of view of the camera 112 in the Y direction using the masks 161 and 162, it is possible to prevent the real image S J from being reflected in the camera 112. Note that instead of the masks 161 and 162, it is also possible to limit the angle of view as described above by signal processing in the position detection unit 121. Also, the viewing area of the image itself may be limited in the display 113 by something like a louver film.
  • the real image presenting unit 158 presents the real image SJ , which is a two-dimensional image such as an image or a photograph, as described above, but it is also possible to present a stereoscopic image of a face as the real image SJ .
  • the stereoscopic image can be a face mask or a doll.
  • Some stereoscopic image display devices 110 are capable of detecting a face and eyes using three-dimensional information such as a depth sensor in addition to the image captured by the camera 112.
  • the real image presenting unit 158 When crosstalk measurement is performed on such a stereoscopic image display device 110, the real image presenting unit 158 presents a stereoscopic image of the face as the real image SJ , making it possible to correspond to the detection method of the stereoscopic image display device 110. Note that when the crosstalk measurement device 150 is used in a darkroom, the real image presenting unit 158 needs to have an illumination function for stereoscopic images.
  • the real image presenting unit 158 can also present a moving image of the face as the real image SJ .
  • the real image presenting unit 158 reproduces changes in brightness and contrast of the face due to external light, flicker, changes in the direction of the face, blinking, and the like, and can evaluate the influence of these on crosstalk.
  • the moving image of the face may be changed gradually for each measurement, not just during one measurement.
  • Fig. 27 is a schematic diagram showing this hardware configuration.
  • control device 170 incorporates a CPU (Central Processing Unit) 1001 and a GPU (Graphics Processing Unit) 1002.
  • An input/output interface 1006 is connected to the CPU 1001 and GPU 1002 via a bus 1005.
  • a ROM (Read Only Memory) 1003 and a RAM (Random Access Memory) 1004 are connected to the bus 1005.
  • an input unit 1007 consisting of input devices such as a keyboard and mouse through which the user inputs operation commands
  • an output unit 1008 which outputs a processing operation screen and images of the processing results to a display device
  • a storage unit 1009 consisting of a hard disk drive or the like for storing programs and various data
  • a communication unit 1010 consisting of a LAN (Local Area Network) adapter and the like for executing communication processing via a network such as the Internet.
  • a drive 1011 which reads and writes data to a removable storage medium 1012 such as a magnetic disk, optical disk, magneto-optical disk, or semiconductor memory.
  • the CPU 1001 executes various processes according to a program stored in the ROM 1003, or a program read from a removable storage medium 1012 such as a magnetic disk, optical disk, magneto-optical disk, or semiconductor memory and installed in the storage unit 1009, and loaded from the storage unit 1009 to the RAM 1004.
  • the RAM 1004 also stores data necessary for the CPU 1001 to execute various processes, as appropriate.
  • the GPU 1002 executes calculations necessary for image drawing under the control of the CPU 1001.
  • the CPU 1001 loads a program stored in the storage unit 1009, for example, into the RAM 1004 via the input/output interface 1006 and the bus 1005, and executes the program, thereby performing the above-mentioned series of processes.
  • the program executed by the control device 170 can be provided, for example, by recording it on a removable storage medium 1012 such as a package medium.
  • the program can also be provided via a wired or wireless transmission medium such as a local area network, the Internet, or digital satellite broadcasting.
  • the program can be installed in the storage unit 1009 via the input/output interface 1006 by attaching the removable storage medium 1012 to the drive 1011.
  • the program can also be received by the communication unit 1010 via a wired or wireless transmission medium and installed in the storage unit 1009.
  • the program can be pre-installed in the ROM 1003 or storage unit 1009.
  • the program executed by the control device 170 may be a program that is processed chronologically in the order described in this disclosure, or may be a program that is processed in parallel or at the required timing, such as when called. Furthermore, the entire hardware configuration of the control device 170 does not have to be mounted on a single device, and the control device 170 may be made up of multiple devices. Furthermore, part of the hardware configuration of the control device 170 may be mounted on multiple devices connected via a network.
  • Figure 28 is a graph showing the results of this crosstalk measurement.
  • the plots shown with circular dots show the results when the face is moved from right to left in relation to the display, and the plots shown with triangular dots show the results when the face is moved from left to right.
  • the results of the embodiment shown by the solid line are shown in two graphs that almost overlap, with the crosstalk value being at a minimum when the device is stationary and there is no deviation (tracking deviation) between the virtual image eye position and the detected eye position, and the crosstalk increases as the speed increases and tracking deviation due to eye detection delays and stereoscopic image generation/display delays increases. From this, it can be considered that the measurement point when the device is stationary is the optimal point, i.e., it is aligned with the detected eye position and the center of the viewing area of the measurement image that is displayed toward that position.
  • This technology can also be configured as follows:
  • a measuring device for measuring the luminance of light incident through an optical system a virtual image display unit located in front of the optical system as viewed in the optical axis direction of the optical system and displaying a virtual image of a face so that the eyes are superimposed on the optical system as viewed in the optical axis direction.
  • the crosstalk measuring device according to (1) The virtual image display unit aligns the position of the eye with the entrance pupil of the optical system.
  • the crosstalk measuring device is arranged so as not to overlap with the optical system when viewed from the optical axis direction, and comprises a real image presentation section that presents a real image of the face, and a combiner that is arranged so as to overlap with the optical system when viewed from the optical axis direction, and reflects light that forms the real image and is incident from the real image presentation section, to generate the virtual image.
  • a crosstalk measuring device according to any one of (1) to (3), The measuring device is configured to be movable, The virtual image display unit moves the virtual image according to a position of the measuring device.
  • the virtual image display unit includes a real image display section that is arranged so as not to overlap with the optical system as viewed from the optical axis direction and displays a real image of the face, and a combiner that is arranged so as to overlap with the optical system as viewed from the optical axis direction and reflects light that forms the real image and is incident from the real image display section to generate the virtual image,
  • a crosstalk measuring device wherein the real image presenting unit and the combiner move together with the measuring device.
  • the crosstalk measuring device includes a real image display unit that is arranged so as not to overlap with the optical system when viewed from the optical axis direction and displays a real image of the face, and a combiner that is arranged so as to overlap with the optical system when viewed from the optical axis direction and reflects light that forms the real image and is incident from the real image display unit to generate the virtual image.
  • the real image presentation unit moves together with the measuring device;
  • the combiner is fixed to the crosstalk measurement apparatus.
  • the virtual image display unit includes a real image display section that is arranged so as not to overlap with the optical system as viewed from the optical axis direction and displays a real image of the face, and a combiner that is arranged so as to overlap with the optical system as viewed from the optical axis direction and reflects light that forms the real image and is incident from the real image display section to generate the virtual image, A crosstalk measuring device, in which the real image presenting unit and the combiner are fixed.
  • a crosstalk measuring device according to any one of (1) to (7), The crosstalk measuring device, wherein the measuring device is shielded except for the optical system when viewed from the optical axis direction.
  • a crosstalk measuring device according to any one of (3) to (8), The combiner is an acrylic plate or a glass plate.
  • the combiner is a holographic optical element.
  • a crosstalk measuring device according to any one of (3) to (10), The real image presenting unit presents a three-dimensional image of the face as the real image.
  • a crosstalk measuring device according to any one of (3) to (10), The real image presenting unit presents a moving image of the face as the real image.
  • the 3D image display device and the crosstalk measuring device are placed opposite each other,
  • the stereoscopic image display device includes a position detection unit that detects a detection position that is the position of the eyes of a face facing a display, a viewpoint image generation unit that generates a left eye image and a right eye image, and a display image generation unit that generates a stereoscopic display image in accordance with the detection position, in which, when displayed on the display, the left eye image is viewed by the left eye of the face and the right eye image is viewed by the right eye of the face, the crosstalk measuring device includes a measuring instrument for measuring the luminance of light incident through an optical system, and a virtual image display unit that is located in front of the optical system as viewed from an optical axis direction of the optical system and displays a virtual image of a face such that the eyes are superimposed on the optical system as viewed from the optical axis direction;
  • the crosstalk measuring method further comprises: evaluating the crosstalk of the display based on the luminance measured by
  • the crosstalk measuring device (14) The crosstalk measuring device according to (13), the viewpoint image generation unit generates a left-eye measurement image, which is an image of a measurement pattern, as the left-eye image, and generates a right-eye measurement image, which is an image of a measurement pattern, as the right-eye image; the stereoscopic display image generation unit generates a measurement display image based on the left eye measurement image and the right eye measurement image; The measuring device measures the luminance of the measurement display image. (15) The crosstalk measuring device according to (14), the viewpoint image generating unit generates the left-eye measurement image and the right-eye measurement image by arranging a measurement pattern only in a measurement area that is a measurement target of the measuring device.
  • the virtual image display unit includes a real image display unit that is arranged so as not to overlap with the optical system when viewed from the optical axis direction and displays a real image of the face, and a combiner that is arranged so as to overlap with the optical system when viewed from the optical axis direction and reflects light that forms the real image and is incident from the real image display unit to generate the virtual image.
  • the stereoscopic image display device includes a camera, the camera being used by the position detection unit to detect the detection position, and the angle of view of the camera is limited so that the real image presentation unit is not included in the camera.
  • a stereoscopic image display device and a crosstalk measuring device are disposed opposite each other,
  • the stereoscopic image display device includes a position detection unit that detects a detection position that is the position of the eyes of a face facing a display, a viewpoint image generation unit that generates a left eye image and a right eye image, and a display image generation unit that generates a display image in accordance with the detection position, such that when the left eye image is displayed on the display, the left eye image is viewed by the left eye of the face, and the right eye image is viewed by the right eye of the face,
  • the crosstalk measuring device includes a measuring device for measuring the luminance of light incident through an optical system, and a virtual image display unit that is located in front of the optical system as viewed from the optical axis direction of the optical system and displays a virtual image of a face so that the eyes are superimposed on the optical system as viewed from the optical axis direction
  • Crosstalk measurement system 110 Stereoscopic image display device 121: Position detection unit 122: Viewpoint image generation unit 123: Stereoscopic display image generation unit 150: Crosstalk measurement device 151: Measuring device 152: Virtual image display unit 153: Base plate 154: Slider 155: Shade 156: Optical system 157: Light receiving element 158: Real image presentation unit 159: Combiner 160: Shielding body 161, 162: Mask 170: Control device 171: Slider control unit 172: Measurement device control unit 173: Crosstalk evaluation unit

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Abstract

Un dispositif de mesure de diaphonie selon la présente technologie comprend un dispositif de mesure et une unité d'affichage d'image virtuelle. Le dispositif de mesure mesure la luminance de la lumière qui est incidente sur celui-ci par l'intermédiaire d'un système optique. L'unité d'affichage d'image virtuelle est positionnée devant le système optique vu dans la direction de l'axe optique du système optique, et affiche une image virtuelle d'un visage d'une manière chevauchant le système optique vu dans la direction de l'axe optique.
PCT/JP2024/009472 2023-03-30 2024-03-12 Dispositif de mesure de diaphonie, procédé de mesure de diaphonie et programme Pending WO2024203264A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH095670A (ja) * 1995-06-23 1997-01-10 Terumo Corp 立体画像表示装置
JP2009507401A (ja) * 2005-05-26 2009-02-19 リアルデー 立体視投影を向上させるゴースト補償
JP2014045474A (ja) * 2012-07-31 2014-03-13 Nlt Technologies Ltd 立体画像表示装置、画像処理装置及び立体画像処理方法
CN110708540A (zh) * 2019-12-05 2020-01-17 深圳市新致维科技有限公司 一种动态串扰测试系统及动态串扰测试方法
KR20210032771A (ko) * 2019-09-17 2021-03-25 콘티넨탈 오토모티브 일렉트로닉스 유한회사 입체 디스플레이의 성능 측정 시스템 및 방법
US20220337807A1 (en) * 2021-04-15 2022-10-20 Google Llc Crosstalk compensation for 3d lightfield displays

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH095670A (ja) * 1995-06-23 1997-01-10 Terumo Corp 立体画像表示装置
JP2009507401A (ja) * 2005-05-26 2009-02-19 リアルデー 立体視投影を向上させるゴースト補償
JP2014045474A (ja) * 2012-07-31 2014-03-13 Nlt Technologies Ltd 立体画像表示装置、画像処理装置及び立体画像処理方法
KR20210032771A (ko) * 2019-09-17 2021-03-25 콘티넨탈 오토모티브 일렉트로닉스 유한회사 입체 디스플레이의 성능 측정 시스템 및 방법
CN110708540A (zh) * 2019-12-05 2020-01-17 深圳市新致维科技有限公司 一种动态串扰测试系统及动态串扰测试方法
US20220337807A1 (en) * 2021-04-15 2022-10-20 Google Llc Crosstalk compensation for 3d lightfield displays

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