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WO2013166796A1 - Procédé et dispositif permettant d'identifier automatiquement un mode de lecture vidéo en 3d - Google Patents

Procédé et dispositif permettant d'identifier automatiquement un mode de lecture vidéo en 3d Download PDF

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Publication number
WO2013166796A1
WO2013166796A1 PCT/CN2012/081360 CN2012081360W WO2013166796A1 WO 2013166796 A1 WO2013166796 A1 WO 2013166796A1 CN 2012081360 W CN2012081360 W CN 2012081360W WO 2013166796 A1 WO2013166796 A1 WO 2013166796A1
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WIPO (PCT)
Prior art keywords
image
rgb
mode
video
area
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PCT/CN2012/081360
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English (en)
Chinese (zh)
Inventor
王凌晨
李剑
陈涛
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Shenzhen TCL New Technology Co Ltd
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Shenzhen TCL New Technology Co Ltd
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    • 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
    • H04N13/356—Image reproducers having separate monoscopic and stereoscopic modes
    • H04N13/359—Switching between monoscopic and stereoscopic modes
    • 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
    • H04N2213/00—Details of stereoscopic systems
    • H04N2213/007—Aspects relating to detection of stereoscopic image format, e.g. for adaptation to the display format

Definitions

  • the present invention relates to the field of television 3D technology, and in particular, to a method and apparatus for automatically recognizing a 3D video playing mode.
  • the up and down mode, the left and right mode, and the 2D to 3D mode can be mainly provided for the user to select the mode when entering the 3D video.
  • the user in the current TV that can be used to play 3D video on the market, if the user needs to watch 3D video, the user first needs to select the source of the video, and then selects to enter the 3D video viewing mode; and since the current television can not automatically recognize And determine which mode the currently played 3D video is.
  • the user after entering the 3D video viewing mode according to the user's selection, the user is also required to select the upper and lower mode, the left and right mode, or the 2D to 3D according to his own judgment. Mode to watch. In this way, the operation of the user is cumbersome and cannot give the user a better viewing experience.
  • the main object of the present invention is to provide a method and apparatus for automatically recognizing a 3D video playing mode. After the user selects to enter the 3D video viewing mode, the playing mode is automatically recognized and played, which simplifies the operation complexity of the user during viewing. And make the design of the TV more user-friendly, giving users a better viewing experience.
  • the invention provides a method for automatically recognizing a 3D video playing mode, comprising:
  • the horizontal central axis and the longitudinal central axis of the display screen displaying the video image are symmetrical axes, and the symmetrical regions are respectively intercepted on both sides of the lateral central axis and the longitudinal central axis. image;
  • the television set plays the 3D video according to the determined play mode.
  • the determining, according to the result of the comparison, the play mode of the 3D video for the television to play the 3D video according to the determined play mode comprises: comparing results of the image of the area symmetric with the longitudinal central axis When it is within a preset range, it is determined that the play mode is a left-right mode, the television plays a 3D video corresponding to the left and right mode; and when a comparison image of the image symmetrical with the horizontal central axis is in a pre- When the range is set, it is judged that the play mode is the up and down mode, the television plays a 3D video corresponding to the up and down mode; when the comparison result of the area image symmetrical with the longitudinal center axis is at the preset Outside the range, and when the comparison result of the area image symmetrical with the horizontal central axis is also outside the preset range, it is judged that the play mode is the 2D mode to the 3D mode.
  • the transverse central axis and the longitudinal central axis of the display screen displaying the video image are symmetrical axes, and the image of the region symmetrical to each other on both sides of the lateral central axis and the longitudinal central axis respectively comprises:
  • the longitudinal center axis of the display screen displaying the video image is an axis of symmetry, and at least one third area image and a corresponding number of fourth area images symmetrically with respect to the longitudinal center axis are intercepted on both sides of the longitudinal center axis.
  • the image of the area on both sides of the horizontal central axis is analyzed and compared, and the image of the area located on both sides of the longitudinal central axis is analyzed and compared; and the play mode of the 3D video is determined according to the result of the comparison.
  • the image of the area on both sides of the horizontal central axis is analyzed and compared, and the image of the area located on both sides of the longitudinal central axis is analyzed and compared; and the playback of the 3D video is judged according to the result of the comparison.
  • the modes include:
  • the image of the area on both sides of the horizontal central axis is analyzed and compared, and the image of the area located on both sides of the longitudinal central axis is analyzed and compared; and the playback of the 3D video is judged according to the result of the comparison.
  • the modes include:
  • the playback mode of the 3D video is 2D mode to 3D mode.
  • the invention also provides a method for automatically recognizing a 3D video playing mode, comprising:
  • the horizontal central axis and the longitudinal central axis of the display screen displaying the video image are symmetrical axes, and the symmetrical regions are respectively intercepted on both sides of the lateral central axis and the longitudinal central axis. image;
  • the television set plays the 3D video according to the determined play mode.
  • the determining, according to the result of the comparison, the play mode of the 3D video for the television to play the 3D video according to the determined play mode comprises: comparing results of the image of the area symmetric with the longitudinal central axis When it is within a preset range, it is determined that the play mode is a left-right mode, the television plays a 3D video corresponding to the left and right mode; and when a comparison image of the image symmetrical with the horizontal central axis is in a pre- When the range is set, it is judged that the play mode is the up and down mode, the television plays a 3D video corresponding to the up and down mode; when the comparison result of the area image symmetrical with the longitudinal center axis is at the preset Outside the range, and when the comparison result of the area image symmetrical with the horizontal central axis is also outside the preset range, it is judged that the play mode is the 2D mode to the 3D mode.
  • the transverse central axis and the longitudinal central axis of the display screen displaying the video image are symmetrical axes, and the image of the region symmetrical to each other on both sides of the lateral central axis and the longitudinal central axis respectively comprises:
  • the longitudinal center axis of the display screen displaying the video image is an axis of symmetry, and at least one third area image and a corresponding number of fourth area images symmetrically with respect to the longitudinal center axis are intercepted on both sides of the longitudinal center axis.
  • the image of the area on both sides of the horizontal central axis is analyzed and compared, and the image of the area located on both sides of the longitudinal central axis is analyzed and compared; and the playback of the 3D video is judged according to the result of the comparison.
  • the modes include:
  • the image of the area on both sides of the horizontal central axis is analyzed and compared, and the image of the area located on both sides of the longitudinal central axis is analyzed and compared; and the playback of the 3D video is judged according to the result of the comparison.
  • the mode also includes:
  • the image of the area on both sides of the horizontal central axis is analyzed and compared, and the image of the area located on both sides of the longitudinal central axis is analyzed and compared; and the playback of the 3D video is judged according to the result of the comparison.
  • the mode also includes:
  • the playback mode of the 3D video is 2D mode to 3D mode.
  • the method before performing the screenshot of the currently displayed video image after entering the 3D video viewing mode according to the user's selection, the method further includes:
  • the present invention further provides an apparatus for automatically recognizing a 3D video playing mode, including:
  • a screen capture module configured to enter a 3D video viewing mode according to a user's selection, to display a horizontal axis of the display screen of the video image and a longitudinal center axis as an axis of symmetry, respectively, on both sides of the horizontal central axis and the longitudinal central axis Intercepting regional images that are symmetrical to each other;
  • An analysis and judgment module for analyzing and comparing image of the area located on both sides of the horizontal central axis, and analyzing and comparing the image of the area located on both sides of the longitudinal central axis; And determining, according to the result of the comparison, a play mode of the 3D video, for the television to play the 3D video according to the determined play mode.
  • the analysis and determination module is specifically configured to:
  • the play mode is a left and right mode, and the television plays a 3D video corresponding to the left and right mode;
  • the comparison result of the area image in which the horizontal center axis is symmetrical is within a preset range, it is judged that the play mode is the up and down mode, and the television plays a 3D video corresponding to the up and down mode;
  • the vertical center is The comparison result of the axis-symmetric area image is outside the preset range, and when the comparison result of the area image symmetrical with the horizontal central axis is also outside the preset range, it is determined that the play mode is 2D Mode to 3D mode.
  • the screen capture module comprises:
  • a first screen capture unit for arranging an axis of symmetry with a lateral central axis of the display screen displaying the video image, and extracting at least one image of the first region and a corresponding number on both sides of the lateral central axis and one by one with respect to the lateral central axis Symmetric second area image;
  • a second screen capture unit for taking a longitudinal axis of the display screen displaying the video image as an axis of symmetry, and capturing at least one third region image and a corresponding number on both sides of the longitudinal central axis and relating to the longitudinal central axis Symmetrical fourth area image.
  • the analysis and judgment module comprises:
  • a first analyzing unit configured to analyze RGB values of the first area image and RGB values of the symmetrical second area image, and analyze the RGB values of the first area image and the RGB of the second area image The value is performed and the value is calculated to obtain RGB sum values of the first region image and RGB sum values of the second region image;
  • a first determining unit configured to determine a magnitude relationship between a difference between an RGB sum value of the first area image and an RGB sum value of the second area image and a preset difference range, if the RGB of the first area image The difference between the sum value and the RGB sum value of the second area image is less than the preset difference range, and it is determined that the play mode of the 3D video is the left and right mode.
  • the analyzing and determining module further comprises:
  • a second analyzing unit configured to analyze the RGB value of the third area image and the RGB value of the symmetrical fourth area image, and analyze the RGB value of the third area image and the RGB of the fourth area image The value is performed and the value is calculated to obtain the RGB sum value of the image of the third region and the RGB sum value of the image of the fourth region;
  • a second determining unit configured to determine that a difference between an RGB sum value of the third area image and a RGB sum value of the symmetrical fourth area image is related to a size of the preset difference range, if the third area If the difference between the RGB sum value of the image and the RGB sum value of the fourth region image is less than the preset difference range, it is determined that the playback mode of the 3D video is the up and down mode.
  • the analyzing and determining module further comprises:
  • a third determining unit configured to: if a difference between the RGB sum value of the first area image and the RGB sum value of the symmetrical second area image is greater than a preset difference range, and the RGB of the third area image The difference between the RGB value of the sum value and the symmetrical fourth region image is greater than the preset difference range, and it is determined that the playback mode of the 3D video is the 2D mode to the 3D mode.
  • the apparatus for automatically recognizing the 3D video playing mode further includes:
  • a prompt module for displaying a black screen on the display screen or displaying a prompt language on the display screen to prompt the user that the 3D video viewing mode is being entered.
  • the invention selects the source of the 3D video according to the needs of the user, and further selects the source of the 3D video; and the television enters the 3D video viewing mode according to the user's selection to display the video image.
  • the transverse central axis and the longitudinal central axis of the display screen are symmetry axes, and the symmetrical image of each region is taken on both sides of the lateral central axis and the longitudinal central axis, and then analyzed and compared according to the images of the regions, and the user is automatically recognized at this time.
  • the playback mode of the selected 3D video source and finally controls the TV to play the 3D video in this mode according to the recognized playback mode of the 3D video.
  • the user does not need to judge the play mode of the 3D video by himself, which simplifies the cumbersomeness of the user's 3D video operation during viewing, and makes the design of the TV more user-friendly, thereby giving the user more Good viewing experience.
  • FIG. 1 is a schematic flowchart of a first embodiment of a method for automatically recognizing a 3D video playing mode according to the present invention
  • FIG. 2 is a schematic flow chart of intercepting an area image on the display screen in FIG. 1;
  • FIG. 3 is a schematic diagram of an area image captured in a method for automatically recognizing a 3D video playing mode according to the present invention
  • FIG. 4 is a schematic flow chart of the first embodiment of determining a 3D video playing mode in FIG. 1;
  • FIG. 5 is a schematic flow chart of the second embodiment of determining a 3D video playing mode in FIG. 1;
  • FIG. 6 is a schematic flow chart of determining a third embodiment of the 3D video playing mode in FIG. 1;
  • FIG. 7 is a schematic flowchart of a second embodiment of a method for automatically recognizing a 3D video playing mode according to the present invention.
  • FIG. 8 is a schematic structural diagram of a first embodiment of an apparatus for automatically recognizing a 3D video playing mode according to the present invention.
  • FIG. 9 is a schematic structural view of the screen capture module of FIG. 8.
  • FIG. 10 is a schematic structural view of a first embodiment of the analysis and determination module of FIG. 8;
  • FIG. 11 is a schematic structural view of a second embodiment of the analysis and determination module of FIG. 8;
  • FIG. 12 is a schematic structural view of a third embodiment of the analysis and determination module of FIG. 8;
  • FIG. 13 is a schematic structural diagram of a second embodiment of an apparatus for automatically recognizing a 3D video playing mode according to the present invention.
  • FIG. 1 is a schematic flowchart diagram of a first embodiment of a method for automatically recognizing a 3D video playing mode according to the present invention.
  • the method includes:
  • Step S10 after entering the 3D video viewing mode according to the user's selection, the transverse central axis and the longitudinal central axis of the display screen displaying the video image are symmetrical axes, and the two sides of the lateral central axis and the longitudinal central axis are respectively symmetrical.
  • a method for automatically recognizing a 3D video playing mode can automatically recognize a play mode of the 3D video after entering the 3D video viewing mode according to a user's selection, and directly control the television to play the same.
  • the mode plays on 3D video. This does not require the user to judge the playback mode of the 3D video, and then perform a selection according to the determined playback mode to control the TV to play the 3D video.
  • the source of the 3D video needs to be selected according to his own needs, and after the source of the 3D video is selected, further confirmation is performed to control the television to enter the 3D video viewing mode.
  • the horizontal central axis and the longitudinal central axis of the display screen displaying the video image are taken as the axis of symmetry, and the image of the region symmetrical with each other is intercepted on both sides of the lateral central axis and the longitudinal central axis.
  • Step S20 analyzing and comparing the image of the area on both sides of the horizontal central axis, and analyzing and comparing the image of the area located on both sides of the longitudinal central axis; and judging the playing mode of the 3D video according to the comparison result, for the television
  • the 3D video is played according to the determined play mode.
  • determining the play mode of the 3D video according to the result of the comparison for the television to play the 3D video according to the determined play mode, includes: when the comparison result of the area image symmetrical with the longitudinal central axis is within a preset range , determining that the play mode is the left and right mode, the television plays the 3D video corresponding to the left and right mode; when the comparison result of the image of the area symmetrical with the horizontal central axis is within a preset range, determining that the play mode is the up and down mode, the television Playing 3D video corresponding to the up and down mode; when the comparison result of the area image symmetrical with the longitudinal central axis is outside the preset range, and the comparison result of the area image symmetrical with the horizontal central axis is also outside the preset range, then judging The play mode is 2D mode to 3D mode.
  • the transverse central axis and the longitudinal central axis of the display screen displaying the video image are symmetrical axes, after framing the mutually symmetrical area images on both sides of the lateral central axis and the longitudinal central axis, it is necessary to be located on both sides of the lateral central axis, and The images of the symmetrical regions on both sides of the longitudinal central axis are analyzed and compared separately.
  • the analysis of the area image substantially analyzes the value of RGB corresponding to the area image.
  • the play mode of the currently played 3D video is judged, and then the TV is controlled to play the 3D video according to the determined play mode.
  • the play mode of the 3D video includes a left and right mode, a top and bottom mode, and a 2D mode to a 3D mode.
  • the television enters the 3D video viewing mode according to the user's selection, to display
  • the horizontal central axis and the longitudinal central axis of the display screen of the video image are symmetry axes, and the symmetrical image of each region is intercepted on both sides of the lateral central axis and the longitudinal central axis, and then analyzed and compared according to the images of the regions, and the time is automatically recognized.
  • the user does not need to judge the play mode of the 3D video by himself, which simplifies the cumbersomeness of the user's 3D video operation during viewing, and makes the design of the TV more user-friendly, thereby giving the user more Good viewing experience.
  • FIG. 2 is a schematic flow chart of intercepting an area image on the display screen in FIG.
  • step S10 specifically includes:
  • Step S11 taking the horizontal central axis of the display screen displaying the video image as an axis of symmetry, and capturing at least one first area image and a corresponding number of second area images symmetrically about the horizontal central axis on both sides of the horizontal central axis;
  • Step S12 taking the longitudinal central axis of the display screen displaying the video image as an axis of symmetry, and capturing at least one third region image and a corresponding number of fourth region images symmetrically about the longitudinal central axis on both sides of the longitudinal central axis.
  • the horizontal center axis of the display screen displaying the video image is taken as an axis of symmetry, and the area image is intercepted on both sides thereof, and the captured area image may be defined as the first area image and the second area.
  • the intercepted first area image and the second area image may respectively be three, that is, three symmetric pairs of area images are respectively cut at the two ends of the left side, the right side and the longitudinal center axis of the display screen.
  • the longitudinal center axis of the display screen displaying the video image is an axis of symmetry
  • the area image is intercepted on both sides thereof
  • the captured area image may be defined as the third area image and the fourth area image, that is, at least one third is intercepted.
  • the area image and at least one fourth area image corresponding to its number and symmetrical about the longitudinal center axis.
  • the intercepted third area image and the fourth area image may also be three, respectively, that is, three symmetric image pairs are respectively cut at the upper end of the display screen, the lower side and the lateral center axis.
  • FIG. 3 is a schematic diagram of an area image captured in the method for automatically recognizing a 3D video playing mode according to the present invention.
  • the three pairs of area images intercepted are 11 and 31, 41 and 42, and 12 and 32, wherein 11, 41 and 12 constitute the first area image, and 31, 42 and 32 constitute the second area image;
  • the screen is taken with the longitudinal center axis of the display screen displaying the video image as the axis of symmetry, the intercepted three pairs of area images That is, 11 and 12, 21 and 22, and 31 and 32, wherein 11, 21 and 31 constitute a third area image, and 12, 22 and 32 constitute a fourth area image.
  • the horizontal axis of the display screen displaying the video image is taken as an axis of symmetry, and the first area image and the second area image symmetrical to each other are intercepted on both sides of the horizontal center axis; and the video image is displayed
  • the longitudinal center axis of the display screen is an axis of symmetry, and a third area image and a fourth area image that are symmetrical to each other are taken on both sides of the longitudinal center axis.
  • FIG. 4 is a schematic flowchart of the first embodiment of determining a 3D video playing mode in FIG.
  • step S20 includes:
  • Step S21 analyzing the RGB value of the first area image and the RGB value of the second area image, and calculating the sum of the RGB values of the analyzed first area image and the RGB values of the second area image to obtain the first The RGB sum value of the area image and the RGB sum value of the second area image;
  • Step S22 determining a relationship between a difference between an RGB sum value of the first region image and an RGB sum value of the second region image and a preset difference range, if the RGB sum value of the first region image and the second region image If the difference between the RGB and the value is less than the preset difference range, it is determined that the playback mode of the 3D video is the left and right mode.
  • the RGB values of the area images are first analyzed.
  • the RGB values of the first area image and the RGB values of the second area image are analyzed, that is, the RGB values of 11 and 31, 41 and 42, and 12 and 32 are respectively analyzed, and the RGB of each of the analyzed area images is analyzed.
  • the value is subjected to the calculation of the sum value so that RGB sum values of the first region image including 11, 41, and 12, and RGB sum values including the 31, 42 and 32 second region images can be obtained.
  • the RGB values of the first region image and the RGB sum values of the second region image are obtained by performing the sum value calculation on the RGB values of each region image
  • the RGB sum values and the second values in the first region image are started.
  • the RGB value of the area image is calculated by the difference, and then the difference obtained is compared with the preset difference range, that is, the magnitude relationship between the two is compared. That is, 11 and 31, 41 and 42, and 12 and 32 respectively calculate the difference between the RGB and the value, and compare the obtained difference with the preset difference range.
  • the preset difference range may be set according to actual needs. In this embodiment, the preset difference range may be set to 10%.
  • the TV is further controlled to play the 3D video in the left and right mode.
  • FIG. 5 is a schematic flowchart of determining a second embodiment of the 3D video playing mode in FIG.
  • step S20 is based on the foregoing first embodiment, and further includes:
  • Step S23 analyzing the RGB value of the third area image and the RGB value of the fourth area image, and calculating the sum of the RGB values of the analyzed third area image and the RGB values of the fourth area image to obtain a third value.
  • Step S24 determining the magnitude relationship between the difference between the RGB sum value of the third area image and the RGB sum value of the fourth area image and the preset difference range, if the RGB sum value of the third area image and the fourth area image If the difference between the RGB and the value is less than the preset difference range, it is determined that the playback mode of the 3D video is the up and down mode.
  • the RGB values of the third region image and the RGB values of the fourth region image are analyzed, that is, the RGB values of 11 and 12, 21 and 22, and 31 and 32 are respectively analyzed, and the RGB of each region image analyzed is analyzed.
  • the value is subjected to the calculation of the sum value so that RGB sum values of the third region image including 11, 21, and 31, and RGB sum values including the 12, 22, and 32 fourth region images can be obtained.
  • the RGB values of the third region image and the RGB sum values of the fourth region image are obtained by performing the sum value calculation on the RGB values of each region image
  • the RGB sum values and the fourth values in the third region image are started.
  • the RGB value of the area image is calculated by the difference, and then the difference obtained is compared with the preset difference range, that is, the magnitude relationship between the two is compared. That is, 11 and 12, 21 and 22, and 31 and 32 respectively calculate the difference between the RGB and the value, and compare the obtained difference with the preset difference range.
  • the preset difference range may be set according to actual needs. In this embodiment, the preset difference range may be set to 10%.
  • the playback mode of the 3D video is the up and down mode.
  • the 3D video is played by controlling the TV above and below mode.
  • steps in the foregoing embodiment 2 may also be independent of the first embodiment, and determine whether the play mode of the 3D video is the up and down mode.
  • FIG. 6 is a schematic flowchart of determining a third embodiment of the 3D video playing mode in FIG.
  • step S20 is based on the foregoing first embodiment and the second embodiment, and includes:
  • Step S25 determining a magnitude relationship between a difference between the RGB sum value of the first region image and the RGB sum value of the second region image and the preset difference range, and the RGB sum value of the third region image and the fourth region image.
  • Step S26 if the difference between the RGB sum values of the first area image and the second area image is greater than a preset difference range, and the difference between the RGB sum values of the third area image and the fourth area image is greater than a preset difference In the range of values, it is determined that the playback mode of the 3D video is 2D mode to 3D mode.
  • RGB sum values of the first area image including 11, 41, and 12 are obtained, and 31, 42 and 32 are included.
  • RGB sum value of the two-region image; and, RGB values of the third region image and RGB values of the fourth region image are analyzed and sum value calculation is performed to obtain RGB sum values of the third region image including 11, 21, and 31
  • the difference between the RGB sum values of the first area image and the second area image, and the RGB sum values of the third area image and the fourth area image, after including the RGB sum values of the 12, 22, and 32 fourth area images The difference is compared to the preset difference range.
  • the difference between the RGB sum values of the first area image and the second area image is greater than a preset difference range, that is, when RGB sum values of 11 and 12, 21 and 22, and 31 and 32
  • the difference is smaller than the preset 10% difference range
  • the difference between the RGB sum value of the third area image and the fourth area image is also greater than the preset difference range, that is, when 11 and 12 When 21, 22 and 22, and the difference between the RGB and the values of 31 and 32 are both smaller than the preset 10% difference range
  • the first area image and the second area image, and the RGB values of the third area image and the fourth area image are respectively analyzed, and the analyzed area images are analyzed. RGB values are performed and value calculations; Then determining the first region image and the second region image, and the difference between the difference between the RGB sum values of the third region image and the fourth region image and the preset difference range, and determining the current 3D video playback according to the determination result. Mode, finally controlling the TV to play the 3D video in the corresponding play mode. In this way, the accuracy of judging the playback mode of the 3D video is largely ensured, and the design of the TV set is further ensured to be more user-friendly, and the user is provided with a better viewing experience.
  • steps in the foregoing embodiment 3 may also be independent of the first embodiment and the second embodiment, and determine whether the play mode of the 3D video is a 2D mode to a 3D mode.
  • FIG. 7 is a schematic flowchart diagram of a second embodiment of a method for automatically recognizing a 3D video playing mode according to the present invention.
  • the method further includes:
  • step S30 the display screen is displayed in a black screen, or a prompt language is displayed on the display screen to prompt the user that the 3D video viewing mode is being entered.
  • the display may also be displayed.
  • the screen displays a black screen for a certain period of time, such as making the display black screen 1-3 seconds to prompt the user that the TV is entering the 3D video viewing mode; or, by displaying a prompt language on the display, such as "Entering 3D A field such as a video viewing mode to prompt the user that the television is now entering the 3D video viewing mode.
  • the user Before the television is controlled to enter the 3D video viewing mode according to the user's selection, the user is prompted to enter the 3D video viewing mode by displaying the display screen in a black screen or displaying a prompt language on the display screen. In this way, the user can be more clearly and intuitively aware of the progress of the television at this time, thereby ensuring to a certain extent that the user-friendly design of the television can bring a better viewing experience to the user.
  • FIG. 8 is a schematic structural diagram of a first embodiment of an apparatus for automatically recognizing a 3D video playing mode according to the present invention.
  • the device includes:
  • the screen capture module 10 is configured to intercept the horizontal central axis and the longitudinal central axis of the display screen displaying the video image after the user enters the 3D video viewing mode according to the user's selection, and respectively intercept the two sides of the horizontal central axis and the longitudinal central axis. Area images that are symmetrical to each other;
  • the analysis and judgment module 20 is configured to analyze and compare the image of the area located on both sides of the horizontal central axis, and analyze and compare the image of the area located on both sides of the longitudinal central axis; and judge the play mode of the 3D video according to the comparison result. For the TV to play 3D video according to the determined playback mode.
  • the device for automatically recognizing the 3D video playing mode provided by the embodiment of the present invention can automatically recognize the playing mode of the 3D video after entering the 3D video viewing mode according to the user's selection, and directly control the television to play the same.
  • the mode plays on 3D video. This does not require the user to judge the playback mode of the 3D video, and then perform a selection according to the determined playback mode to control the TV to play the 3D video.
  • the screen capture module 10 intercepts the symmetrical regions of the image with the horizontal central axis and the longitudinal central axis of the display screen displaying the video image, and the symmetrical regions of the image on both sides of the lateral central axis and the longitudinal central axis.
  • the analysis and judgment module 20 needs to be located at the lateral center.
  • the images on both sides of the axis and the symmetrical regions on both sides of the longitudinal central axis are analyzed and compared.
  • the analysis of the area image substantially analyzes the value of RGB corresponding to the area image.
  • the play mode of the currently played 3D video is judged, and then the TV is controlled to play the 3D video according to the determined play mode.
  • the play mode of the 3D video includes a left and right mode, a top and bottom mode, and a 2D mode to a 3D mode.
  • the television enters the 3D video viewing mode according to the user's selection, to display
  • the horizontal central axis and the longitudinal central axis of the display screen of the video image are symmetry axes, and the symmetrical image of each region is intercepted on both sides of the lateral central axis and the longitudinal central axis, and then analyzed and compared according to the images of the regions, and the time is automatically recognized.
  • the user does not need to judge the play mode of the 3D video by himself, which simplifies the cumbersomeness of the user's 3D video operation during viewing, and makes the design of the TV more user-friendly, thereby giving the user more Good viewing experience.
  • FIG. 9 is a schematic structural diagram of the screen capture module of FIG.
  • the screen capture module 10 specifically includes:
  • the first screen capture unit 11 is configured to take a horizontal axis of the display screen displaying the video image as an axis of symmetry, and to extract at least one first region image and a corresponding number on the two sides of the lateral central axis and symmetrically about the horizontal central axis.
  • a second screen unit 12 configured to take a longitudinal axis of the display screen displaying the video image as an axis of symmetry, and to extract at least one third region image and a corresponding number on the two sides of the longitudinal central axis and symmetrically about the longitudinal central axis Four-area image.
  • the first screen shooting unit 11 After entering the 3D video viewing mode, the first screen shooting unit 11 first takes the horizontal axis of the display screen displaying the video image as the axis of symmetry, and intercepts the area image on both sides thereof, and the captured area image may be defined as the first area.
  • the image and the second region image ie at least one first region image and at least one second region image corresponding to its number and symmetrical about a transverse central axis.
  • the intercepted first area image and the second area image may respectively be three, that is, three symmetric pairs of area images are respectively cut at the two ends of the left side, the right side and the longitudinal center axis of the display screen.
  • the second screen unit 12 takes the longitudinal center axis of the display screen displaying the video image as an axis of symmetry, and intercepts the area image on both sides thereof, and the captured area image can be defined as the third area image and the fourth area image, that is, At least one third region image and at least one fourth region image symmetrical with respect to the lateral central axis are intercepted.
  • the intercepted third area image and the fourth area image may also be three, respectively, that is, three symmetric image pairs are respectively cut at the upper end of the display screen, the lower side and the lateral center axis.
  • FIG. 3 is a schematic diagram of an area image captured in the method for automatically recognizing a 3D video playing mode according to the present invention.
  • the three pairs of area images intercepted are 11 and 31, 41 and 42, and 12 and 32, wherein 11, 41 and 12 constitute the first area image, and 31, 42 and 32 constitute the second area image;
  • the screen is taken with the longitudinal center axis of the display screen displaying the video image as the axis of symmetry, the intercepted three pairs of area images That is, 11 and 12, 21 and 22, and 31 and 32, wherein 11, 21 and 31 constitute a third area image, and 12, 22 and 32 constitute a fourth area image.
  • the horizontal axis of the display screen displaying the video image is taken as an axis of symmetry, and the first area image and the second area image symmetrical to each other are intercepted on both sides of the horizontal center axis; and the video image is displayed
  • the longitudinal center axis of the display screen is an axis of symmetry, and a third area image and a fourth area image that are symmetrical to each other are taken on both sides of the longitudinal center axis.
  • FIG. 10 is a schematic structural diagram of a first embodiment of the analysis and determination module of FIG.
  • the analysis and determination module 20 includes:
  • the first analyzing unit 21 is configured to analyze the RGB values of the first area image and the RGB values of the symmetrical second area image, and analyze the RGB values of the first area image and the RGB values of the second area image. Performing a sum value calculation to obtain RGB sum values of the first area image and RGB sum values of the second area image;
  • the first determining unit 22 is configured to determine a relationship between a difference between the RGB sum value of the first area image and the RGB sum value of the second area image and a preset difference range, if the RGB sum value of the first area image is If the difference between the RGB and the value of the second area image is smaller than the preset difference range, it is determined that the playback mode of the 3D video is the left and right mode.
  • the RGB values of the area images are first analyzed.
  • the first analyzing unit 21 analyzes the RGB values of the first region image and the RGB values of the second region image, that is, analyzes the RGB values of 11 and 31, 41, and 42, and 12 and 32, respectively, and analyzes each of the RGB values.
  • the RGB values of an area image are subjected to sum value calculation so that RGB sum values of the first area image including 11, 41, and 12, and RGB sum values of the second area images including 31, 42 and 32 can be obtained.
  • the RGB sum values and the second values in the first region image are started.
  • the RGB sum value of the area image is subjected to difference calculation, and then the first judging unit 22 compares the obtained difference value with a preset difference value range, that is, compares the magnitude relationship between the two. That is, 11 and 31, 41 and 42, and 12 and 32 respectively calculate the difference between the RGB and the value, and compare the obtained difference with the preset difference range.
  • the preset difference range may be set according to actual needs. In this embodiment, the preset difference range may be set to 10%.
  • the first judging unit 22 judges that the difference between the RGB sum values of 11 and 31, 41 and 42 and 12 and 32 is smaller than the preset difference range, that is, less than 10%, it can be determined that the 3D video is at this time.
  • the playback mode is left and right mode. In this embodiment, only when the difference between the RGB sum values of 11 and 31, 41 and 42 and 12 and 32 is less than the preset 10% difference range, it can be determined that the playback mode of the 3D video is Left and right mode Otherwise, this judgment cannot be made. After determining the play mode at this time, the TV is further controlled to play the 3D video in the left and right mode.
  • FIG. 11 is a schematic structural diagram of a second embodiment of the analysis and determination module of FIG.
  • the analysis and determination module 20 further includes:
  • the second analyzing unit 23 is configured to analyze the RGB value of the third area image and the RGB value of the symmetrical fourth area image, and analyze the RGB value of the third area image and the RGB value of the fourth area image. Performing a sum value calculation to obtain RGB sum values of the third region image and RGB sum values of the fourth region image;
  • the second determining unit 24 is configured to determine that the difference between the RGB sum value of the third area image and the RGB sum value of the symmetrical fourth area image is different from the preset difference range, if the third area image is RGB The difference between the sum value and the RGB sum value of the fourth area image is smaller than the preset difference range, and it is determined that the play mode of the 3D video is the up and down mode at this time.
  • the second analyzing unit 23 analyzes the RGB values of the third area image and the RGB values of the fourth area image, that is, analyzes the RGB values of 11 and 12, 21 and 22, and 31 and 32, respectively, and analyzes each of the RGB values.
  • the RGB values of an area image are subjected to sum value calculation so that RGB sum values of the third area image including 11, 21, and 31, and RGB sum values including the 12, 22, and 32 fourth area images can be obtained.
  • the RGB sum values and the fourth values in the third region image are started.
  • the RGB sum value of the area image is subjected to difference calculation, and then the second judging unit 24 compares the obtained difference value with a preset difference value range, that is, compares the magnitude relationship between the two. That is, 11 and 12, 21 and 22, and 31 and 32 respectively calculate the difference between the RGB and the value, and compare the obtained difference with the preset difference range.
  • the preset difference range may be set according to actual needs. In this embodiment, the preset difference range may be set to 10%.
  • the second judging unit 24 judges that the difference between the RGB sum values of 11 and 12, 21 and 22, and 31 and 32 is smaller than the preset difference range, that is, less than 10%, it can be determined that the 3D video is at this time.
  • the playback mode is up and down mode. In this embodiment, only when the difference between the RGB sum values of 11 and 12, 21 and 22, and 31 and 32 is less than the preset 10% difference range, it can be determined that the playback mode of the 3D video is Up and down mode Otherwise, this judgment cannot be made. After judging the play mode at this time, the 3D video is played by controlling the TV above and below mode.
  • FIG. 12 is a schematic structural diagram of a third embodiment of the analysis and determination module of FIG.
  • the analysis and determination module 20 further includes:
  • the third determining unit 25 is configured to determine a magnitude relationship between a difference between the RGB sum value of the first region image and the RGB sum value of the second region image and a preset difference range, and an RGB sum value of the third region image The difference between the difference between the RGB and the value of the image of the fourth region and the preset difference range;
  • the playback mode of the 3D video is 2D mode to 3D mode.
  • RGB sum values of the first area image including 11, 41, and 12 are obtained, and 31, 42 and 32 are included.
  • RGB sum value of the two-region image; and, RGB values of the third region image and RGB values of the fourth region image are analyzed and sum value calculation is performed to obtain RGB sum values of the third region image including 11, 21, and 31
  • the third judging unit 25 compares the difference between the RGB sum values of the first region image and the second region image, and the third region image and the fourth region The difference between the RGB and the value of the image is compared to the preset difference range.
  • the third determining unit 25 determines that the difference between the RGB sum values of the first area image and the second area image is greater than a preset difference range, that is, when 11 and 12, 21 and 22, and 31 and The difference between the RGB and the value of 32 is smaller than the preset 10% difference range; and the third judging unit 25 judges that the difference between the RGB sum value of the third area image and the fourth area image is also greater than The preset difference range, that is, when 11 and 12, 21 and 22, and the difference between the RGB and the values of 31 and 32 are less than the preset 10% difference range, it can be determined that the 3D video is played at this time.
  • the mode is 2D mode to 3D mode. After determining the play mode at this time, the TV is further controlled to play the 3D video in the 2D mode to the 3D mode.
  • the first area image and the second area image, and the RGB values of the third area image and the fourth area image are respectively analyzed, and the analyzed area images are analyzed. RGB values are performed and value calculations; Then determining the first region image and the second region image, and the difference between the difference between the RGB sum values of the third region image and the fourth region image and the preset difference range, and determining the current 3D video playback according to the determination result. Mode, finally controlling the TV to play the 3D video in the corresponding play mode. In this way, the accuracy of judging the playback mode of the 3D video is largely ensured, and the design of the TV set is further ensured to be more user-friendly, and the user is provided with a better viewing experience.
  • FIG. 13 is a schematic structural diagram of a second embodiment of an apparatus for automatically recognizing a 3D video playing mode according to the present invention.
  • the device further includes:
  • the prompting module 30 is configured to display the display screen in a black screen or display a prompt language on the display screen to prompt the user that the 3D video viewing mode is being entered.
  • the display module 30 can also display the black screen for a certain time by the prompting module 30, such as making the display screen black for 1-3 seconds to prompt the user.
  • the television is entering the 3D video viewing mode; or, by displaying a prompt language on the display, such as "Entering the 3D video viewing mode" and the like, the user is prompted to enter the 3D video viewing mode at this time.
  • the user Before the television is controlled to enter the 3D video viewing mode according to the user's selection, the user is prompted to enter the 3D video viewing mode by displaying the display screen in a black screen or displaying a prompt language on the display screen. In this way, the user can be more clearly and intuitively aware of the progress of the television at this time, thereby ensuring to a certain extent that the user-friendly design of the television can bring a better viewing experience to the user.

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