TWI466031B - Adjustable marker for tangible object detection - Google Patents

Description

Dynamic tag for physical object detection

The invention relates to a dynamic label for physical object detection, in particular to a dynamic label for detecting a physical object with dynamic position indication.

The Tangible User Interface has been developed for many years in the field of human-computer interaction and has many commercial applications. When the system detects the movement of the physical object through the detection of the label, a relative reaction is generated, and the physical object and the physical image are combined and fed back to the user. The user interface for physical object manipulation usually includes multiple modules. The tag detection module is the data input medium of the user and the system. Its performance and correctness directly affect the whole system, and it is the most important core technology in the system. Currently, arrays have been published for tags that are manipulated by physical objects, such as Domino tags and ARToolkit. Among them, ARToolkit uses a graphical comparison method to detect tags. Under this technology, the tags need to be defined in advance and passed through a system learning program, and the relevant data can be imported into the system, and the system can identify the tags accordingly. Here, the system recognizes the similarity between the detected feature value of the tag and the stored tag feature value in the database.

The physical object detection technology of the prior art is mostly applied to a large desktop (Tabletop), and the camera image of the physical object is taken to track the direction, identity and position of the physical object. However, conventional techniques can only detect the two-dimensional position of a physical object and one-dimensional rotation information.

It is an object of the present invention to provide a dynamic tag for detecting physical objects, which can increase the recognition dimension of a physical object compared to conventional techniques. The structure of the dynamic label includes: a dynamic label surface of a substrate for identifying the direction, identity and position information of the physical object by means of image processing; the surface of the dynamic label has at least one direction The indication may indicate a direction in which the physical object moves; at least one identity mark is disposed on the substrate to indicate the identity of the physical object, and the at least one identity is marked as a plurality of fixed indications distributed on the surface of the dynamic label substrate and The dynamic position indication is movably disposed on the substrate, and the image of the fixed dynamic label is added with a dynamically movable indication to increase the dimension of the recognition. The dynamic label is a one-dimensional barcode, a two-dimensional planar barcode, or a stereoscopic image.

According to the dynamic tag of the present invention, at least one identity is formed by 8 identity tags, and is grouped by 2 identities and distributed in four corners of the base of the dynamic tag. The dynamic position indication therein can be moved, such as linear movement or two-dimensional movement (such as circular movement).

The invention provides a detecting device for a physical object, which is a connecting rod mechanism with retractable characteristics, comprising: a bracket table, the dynamic label is disposed on the lower surface of the bracket table, the dynamic label has an opening; and a bracket is erected on the bracket On the stage, for supporting the physical object; a connecting rod, the middle is connected to the top end of the bracket, so that the connecting rod can rotate an angle clockwise or counterclockwise, and the lower half of the connecting rod is a hollow chamber; a block slidable up and down in the hollow chamber of the connecting rod; a second slider perpendicular to the bracket base having a first end point and a second end point, the first end point being coupled to the first slider The second end point is movably protruded from the lower surface of the bracket table, that is, the second end of the second slider is movable on the lower surface of the bracket table. The second end of the second slider passes through the opening of the label to form a dynamic position indication of the dynamic label.

According to the detecting device for a physical object according to the present invention, the dynamic position indication is located at an intermediate position of the dynamic label and is movable. The physical object is disposed on the connecting rod of the detecting device of the physical object, so that the physical object can move along with the connecting rod.

The detecting device for the physical object of the present invention further includes a camera for capturing images of the dynamic label; a control module coupled to the camera for analyzing the image information of the dynamic label captured by the operation, The information is converted into information corresponding to the direction, identity and location of the physical object; and a display unit displays the spatial image corresponding to the physical object, and displays the image of the animated video of the real world.

The invention proposes a dynamic label with a dynamic position indication, so that the physical object can increase the dimension information of the movement in addition to the two-dimensional plane dimension information and the one-dimensional rotation dimension information, so that the displayed image information is more flexible.

The technical solution of the present invention will be described in detail below with reference to the accompanying drawings. In this context, the same component symbols in different figures represent the same or similar components. The directional terminology used herein is for the purpose of illustration and understanding of the invention

Please refer to Fig. 1a, which shows a schematic diagram of the concept of the present invention. As shown in the figure, the transparent table 7 is used (this table is made of glass or acryl full transparent or translucent material), and the table top 7 is divided into an upper surface 8 and a lower surface 9 on the lower surface of the table top 7. A set of infrared emitters 12 is provided, emitting infrared rays 10 and projecting onto the lower surface 9 of the table top 7. When the hand or the physical object 5 which can reflect the infrared ray 10 approaches the upper surface 8 of the table top 7, since the infrared ray 10 is blocked, the infrared ray 10 is reflected back, and finally the infrared ray camera 15 receives the reflected infrared ray 10, so that An image of the physical object 5 placed on the upper surface 8 of the table top 7 is identified.

The identification of the image of the physical object 5 mainly includes the identification of the orientation, identity and location information of the physical object 5. Referring to Figure 1b, Figure 1b shows the label 17 disposed on the physical object 5. By installing a specific tag 17 onto the physical object, the tag 17 is identified by image processing to obtain the direction, identity and location information of the physical object.

Since only two-dimensional position and one-dimensional rotation information can be obtained from the conventional label 17, the present invention proposes a new label design, that is, adding a dynamically movable position indicator to the originally fixed label 17 to become a dynamic Labels, which in turn provide multi-dimensional information, make the displayed image information more flexible.

Referring to Figure 2a, Figure 2a is a dynamic tag 18 of the first embodiment of the present invention. The dynamic label 18 shown in Fig. 2a includes a substrate 20 for attachment to a physical object, typically dark or black, which is an inactive portion of the dynamic label 18. This part can absorb all the infrared rays or reflect only a small part of the infrared rays (depending on the color of the part, the closer to the black, the less the amount of infrared reflection), so that it can be combined with the effective part of the dynamic tag 18. Separated. The active portion of the dynamic tag 18 referred to herein is the indication on the surface of the dynamic tag 18. The indication of the active portion of the dynamic tag 18 referred to herein is including A, D, and B0 to B8. A detailed description of the marking on the surface of the dynamic label 18 is as follows. The substrate 20 has a direction mark 22, that is, D, which is an effective portion of the dynamic tag 18, indicating the direction of the dynamic tag 18. The substrate 20 has at least one identification 24, which is also an effective part of the dynamic label 18, and is an indication for confirming the identity of the dynamic label 18. In the embodiment of the present invention, there are 8 identity indications, respectively B0~B8, so it can be divided into 256 identity information. Moreover, in accordance with the present invention, the dynamic tag 18 has a dynamic position indicator 26, which is also an active portion of the dynamic tag 18, which is a dynamically moveable indicator that can be moved.

By using the image of the dynamic tag 18 as a function similar to a bar code label, by identifying the image of the dynamic tag 18, the direction, identity and location information of the physical object can be provided.

Referring to FIG. 2b, FIG. 2b is a mechanism for detecting the dynamic position indication 26 on the dynamic tag 18 of the detecting device of the physical object of the present invention. The mechanism is a link mechanism 52 having a telescopic characteristic. The link mechanism 52 includes a bracket 30 erected on an upper surface of the bracket base 32 for supporting a physical object, and the dynamic label 18 is placed on the bracket base 32. The lower surface, the base 20 of the dynamic label 18 has an opening which is preferably located at the center; a link 34 is connected to the top end of the bracket 30 so that the link 34 can be rotated clockwise or counterclockwise by a specific angle The lower half of the connecting rod 34 is a hollow chamber 36; a first slider 38 is slidable up and down in the interior of the hollow chamber 36; and a second slider 40 is perpendicular to the upper surface of the bracket 32 There is a first endpoint 31 and a second endpoint 26. The first end point 31 is coupled to the first slider 38 and the second end point 26 projects from the lower surface 42 of the holder table for movement on the lower surface 42 of the holder table.

The second end point 26 of the second slider 40 passes through the opening of the dynamic label 18 to form a dynamic position indicator 26 of the dynamic label 18. As previously mentioned, the second endpoint (i.e., dynamic position indicator) 26 can be moved within the opening to form a movable position indicator. The movement can be linear or two-dimensional (for example, circular movement).

The link mechanism 52 of the detecting device of the physical object as described above, when the R point on the link 34 moves to the right, the Q point of the second slider 40 is left to the left by the mechanical action of the link 34. mobile. The image of the dynamic label 18 from the lower surface 42 of the holder base of the link mechanism 52 (i.e., the position of the dynamic position indicator 26 of the image of the dynamic label 18 can be converted from the motion formula of the link mechanism 52. The angle at which the link 34 is tilted to the left or the angle of the right tilt). If a physical object, such as a figure 52, is placed on the link 34, the moving position of the dynamic position indicator 26 of the dynamic tag 18 can be converted to obtain the tilted position of the figure 54. Applying the dynamic tag 18 described above, there are more than 54 steerable dimensions.

Referring to FIG. 3a and FIG. 3b, FIG. 3a is a bracket 34 of the doll 54. The tiltable or backward tilting person 54 of the embodiment is placed on the bracket 34, and the R point is moved to the right. When the doll 54 is tilted backward, the doll 54 is tilted forward when the point R moves to the left. Referring to the second embodiment of the present invention shown in FIG. 3b, the application of the figure 54 moves in the 3D virtual space, the figure 54 moves on the desktop 7, and a display 56 in front displays the 3D virtual space in time. The view of the Chinese doll 54 is like a person walking around, and then viewing the space of the interior design from the point of view of the doll 54, so that the figure 54 can look up or bow while moving. This effect can be formed because the lower surface of the holder base of the figure 54 has a dynamic label (not shown) as shown in Fig. 2a, and the lower surface of the table top 7 also has a photographing system as shown in Fig. 1a. An image of the dynamic label is available. By analyzing the image of the dynamic label, the action of the doll can be corresponding.

Referring to FIG. 4, FIG. 4 is a block diagram of a detecting device for a physical object according to a second embodiment of the present invention, wherein the detecting device of the physical object includes a camera, in addition to the detecting mechanism of the physical object. A control module and a display unit. The camera is configured to capture an image of the dynamic label; the control module is coupled to the camera for analyzing the image information of the dynamic label captured by the operation, and converting the information into a direction, an identity, and a position corresponding to the physical object. Information; the display unit displays the spatial image corresponding to the physical object, and displays the image of the animated video of the real world. Therefore, as shown in FIG. 3b, by using the control module to analyze the image information of the dynamic label captured, the spatial image as seen by the eyes of the doll can be obtained. Finally, the spatial image seen by the doll's eyes can be displayed from the display unit. The above-mentioned physical object detecting device can be applied to the display of the interior design image, just like a real person watching the interior design image.

Referring to FIG. 5, FIG. 5 is a height-adjustable physical object according to a third embodiment of the present invention. The solid object is a lamp 60 that can be adjusted in height. As shown in FIG. 5, when the luminaire 60 is directly pulled up or lowered, the height of the image of the virtual object in the corresponding 3D virtual space can be adjusted. As shown in FIG. 5, when the lamp 60 is pulled high, the connecting mechanism 58 will be driven, and the connecting mechanism 58 will drive the second slider 40 to move the second slider 40 to the left, so that the lamp 60 can be changed under the lamp 60. Dynamic label on the surface (not shown). After calculation, the image of the luminaire 60 of the luminaire 60 in the 3D virtual space will also be pulled up.

In view of the above, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the invention, and the present invention may be made without departing from the spirit and scope of the invention. Various modifications and refinements are made, and the scope of the present invention is defined by the scope of the appended claims.

5. . . Physical object

7. . . desktop

8. . . Upper surface

9. . . lower surface

12. . . Infrared emitter

15. . . camera

17. . . label

18. . . Dynamic tag

20. . . Base

twenty two. . . Direction marking

twenty four. . . Identity

26. . . Dynamic position indication

28. . . frame

30. . . support

31. . . First endpoint

32. . . Stand

34. . . link

36. . . Hollow chamber

38. . . First slider

40. . . Second slider

42. . . Bracket lower surface

52. . . Linkage

54. . . Doll

56. . . monitor

58. . . Linkage mechanism

60. . . Lamp

Figure 1a is a schematic diagram showing an example of the technique of the present invention;

Figure 1b is a schematic diagram showing the dynamic tag of the present invention.

Fig. 2a is a schematic view showing the dynamic tag structure of the first embodiment of the present invention.

Fig. 2b is a schematic view showing the link mechanism of the detecting device of the physical object according to the second embodiment of the present invention.

Fig. 3a is a schematic view showing the rear tilting and forward tilting motion of the link mechanism of the detecting device of the physical object according to the second embodiment of the present invention.

FIG. 3b is a schematic diagram showing a spatial image corresponding to the field of view of the human object of the detecting device of the physical object according to the second embodiment of the present invention.

FIG. 4 is a block diagram showing the operation of the detecting device of the physical object according to the second embodiment of the present invention.

FIG. 5 is a schematic view showing the illuminator and the connecting mechanism being pulled up according to the third embodiment of the present invention.

18. . . Dynamic tag

20. . . Base

twenty two. . . Direction marking

twenty four. . . Identity

26. . . Dynamic position indication

28. . . frame

Claims (10)

A dynamic label for detecting a physical object, comprising: a substrate coupled to the physical object; at least one direction indicator disposed on the substrate for indicating a direction in which the physical object moves; at least one identity Marking, disposed on the substrate for indicating the identity of the physical object; and at least one dynamic position indication movably disposed on the substrate for indicating the position of the physical object, wherein the direction is marked, The identity indication and the dynamic location indication provide the direction information, the identity information and the location information of the physical object dynamic and static instant after the image processing, and generate corresponding changes of the corresponding spatial image of the physical object. The dynamic label of claim 1, wherein the direction indicator and the identity indicator are configured as a one-dimensional barcode, a two-dimensional planar barcode, or a stereoscopic image. The dynamic label of claim 1, wherein the base of the dynamic position indicator has an opening for an end of one of the sliders to pass through and move therein, the end of the slider being the same Dynamic position indication. The dynamic label of claim 1, wherein at least one of the identification labels comprises a plurality of fixed points distributed on the substrate. The dynamic label of claim 1, wherein the dynamic label comprises eight identity labels, which are distributed in groups of two and are distributed in four corners of the base. For example, the dynamic label described in claim 1 of the patent scope, wherein the dynamic label can be linearly moved. For example, the dynamic label described in claim 1 of the patent scope, wherein the dynamic label can be moved in two dimensions. A detecting device for a physical object, comprising: a bracket table, a dynamic label on the lower surface thereof, the dynamic label having an opening; a bracket standing on the bracket table for supporting a physical object; The middle portion is connected to the top end of the bracket, so that the connecting rod can rotate an angle clockwise or counterclockwise, the lower half of the connecting rod is a hollow chamber; a first sliding block can slide up and down in the hollow chamber of the connecting rod a second slider, perpendicular to the bracket table, having a first end point and a second end point, the first end point being coupled to the first slider, and the second end point being movably protrudingly disposed on the bracket stage a lower surface of the second slider, wherein the second end of the second slider passes through the opening of the label to form a dynamic position indication of the dynamic label. After the image processing, the dynamic information of the physical object and the static and instantaneous direction information are provided. Identity information and location information, and corresponding changes in the corresponding spatial image in which the physical object is located. The detecting device of the physical object according to claim 8, wherein the opening is located at an intermediate position of the dynamic label, so that the second end of the second slider is movable in the opening. The detecting device for the physical object described in claim 8 further includes: a camera for capturing images of the dynamic label; and a control module coupled to the camera for analyzing the dynamics of the computing capture The image information of the tag converts the information into information corresponding to the direction, identity and location of the physical object; and a display unit that displays the spatial image corresponding to the physical object.