CN101677411A - Method for playing image according to data comparison result and related image playing system thereof - Google Patents

Abstract

A method for playing image includes opening image display module, detecting glasses data in preset range, comparing detected glasses data in preset range with a group of data to generate comparison result, and playing stereo image or plane image by image display module according to comparison result.

Description

Method for playing image according to data comparison result and related image playing system

technical field

The invention relates to an image playing method and its related image playing system, in particular to a method for playing a stereoscopic image according to a data comparison result and its related image playing system.

Background technique

Generally speaking, the working principle of a stereoscopic image is to transmit the image seen by the left eye and the image seen by the right eye to the left eye and the right eye respectively. The received images are superimposed in the user's mind into a three-dimensional image with depth of field and layering. Common stereoscopic image generation methods include polarizing glasses (Polarizing glasses), shutter stereoscopic display glasses (Shutter glasses), red-green (blue) stereoscopic display glasses (Anaglyph), and naked-eye stereoscopic display. The following is one by one to introduce its working principle.

The working principle of polarized glasses is to use horizontal polarized lenses and vertical polarized lenses as the left and right glasses lenses respectively, so that the left and right eyes of the user can only see the horizontal and vertical polarized light respectively, while the display device projects the horizontal and vertical polarized light in sequence. The light is received by the left and right eyes respectively, and then superimposed into a three-dimensional image in the brain by using the effect of persistence of vision.

The technology of the shutter stereoscopic display glasses is to let the left and right lenses switch on and off sequentially. When the lens of the right eye is opened, the image for the right eye is also output on the screen at the same time; when the lens of the left eye is opened, the image on the screen is exactly The output image for the left eye. The I-MAX three-dimensional cinema that is gradually becoming popular in Europe and the United States and some three-dimensional theaters at home and abroad adopt this kind of technology. In order to prevent the image in front of the eyes from flickering when wearing 3D glasses, the lens switching speed must be very fast, usually at least 60 times per second, so as not to cause discomfort to the wearer.

Next, we will introduce the red-green (or red-blue) stereoscopic display glasses. Its working principle is to use the red and green filters of the left and right eyes to filter the color, so that the left and right eyes can only see images of a single color and have different viewing angles, and then display them in the brain. Produces images with a three-dimensional effect.

Finally, the naked-eye 3D display is introduced. As the name suggests, users can watch 3D images without wearing 3D glasses. Common methods include E-holographic and Volumetric. The display principle of the holographic stereoscopic image is mainly to use red, blue and green laser sources, each passing through the Acoustic Optical Modulator crystal (Acoustic Optical Modulator, AOM) to generate a phase grating, and then, after the laser with the grating information passes through After the holograms are merged, use the Vertical Scanning mirror and the Polygonal mirror to scan vertically and horizontally, and then present the stereoscopic image. The display principle of the volumetric stereoscopic image is to use a fast-rotating disk, cooperate with the laser source projected from the bottom, project the laser source onto the fast-rotating rotating surface to produce a scattering effect, and then scan every point in the space, and then Stereoscopic images are produced.

Whether it is a stereoscopic image display that needs to wear special glasses or a naked-eye stereoscopic display that can directly use both eyes to watch a stereoscopic image, there are inconveniences in use. In addition to having to wear the corresponding special glasses, a series of software and hardware operations are required, such as manual switching between the two-dimensional image playback mode and the stereoscopic image playback mode of the image playback software, before the user can start. Carry out the viewing and viewing of stereoscopic image; And in respect of glasses-free stereoscopic display, for example, the stereoscopic image display mobile phone that is the model SCH-B710 as Samsung Company's introduction, although it can allow the user not to wear stereoscopic glasses, it still It is necessary for the user to manually rotate the screen of the mobile phone in advance to complete the switching of the playback mode before viewing the stereoscopic image played by it.

Contents of the invention

The present invention provides a method for playing images according to data comparison results, which includes starting the image display module, detecting glasses data within a predetermined range, and comparing the detected glasses data within the predetermined range with a set of data to generate a first comparison result, and the image display module plays a stereoscopic image or a planar image according to the first comparison result.

The present invention also provides an image playback system capable of capturing the outline image of the glasses, which includes an image capture module, which includes an outline extraction device for capturing the outline image of the glasses within a predetermined range; the first storage device , used to store a set of contour image data corresponding to at least one stereoscopic glasses; and a comparing device, used to compare the contour images of the glasses within the predetermined range captured by the contour extracting device and the set of contour image data to generate the first comparison result; and the image display module includes a display device for playing a stereoscopic image or a planar image; and a control device for controlling the display according to the first comparison result transmitted from the comparison device The device plays the stereoscopic image or the planar image.

Description of drawings

FIG. 1 is a functional block diagram of an image display system according to an embodiment of the present invention.

FIG. 2 is a flowchart of a method for playing an image according to a data comparison result according to an embodiment of the present invention.

[Description of main component labels]

10 Image playback system 12 Image capture module

14 Image display module 16 Contour capture device

18 first storage device 20 comparison device

22 Second storage device 24 Display device

26 control device

Detailed ways

Please refer to FIG. 1 . FIG. 1 is a functional block diagram of an image playback system 10 according to an embodiment of the present invention. The image playback system 10 includes an image capture module 12 and an image display module 14 . The image capture module 12 includes a contour capture device 16 , a first storage device 18 and a comparison device 20 . The image capture module 12 can be a common image capture device, such as a webcam. The outline capture device 16 is used to capture outline images of glasses within a predetermined range, and the outline capture device 16 may be an image capture lens of a network camera. The first storage device 18 is used for storing a set of contour image data corresponding to at least one stereoscopic glasses. The comparison device 20 is used to compare the contour image of the glasses within the predetermined range captured by the contour extraction device 16 and the set of contour image data to generate a first comparison result. The comparison device 20 can be a contour image comparison to software. The image display module 14 can be connected to the image capture module 12 in a wired or wireless manner. The image display module 14 can be a notebook computer. The image display module 14 includes a second storage device 22 , a display device 24 and a control device 26 . The second storage device 22 is used to store the stereoscopic image and the planar image or the stereoscopic image comprising the planar image. The image content stored in the second storage device 22 varies with different image display modes, and its correlation The description is detailed in the following image display process. In addition, the second storage device 22 also stores a set of specification data, such as specification data corresponding to a network camera that can be used for image recognition. The display device 24 is used to play the stereoscopic image or the planar image, and the display device 24 can be an image display device, such as a thin film transistor liquid crystal display (Thin-Film Transistor Liquid Crystal Display, TFT-LCD). Finally, the control device 26 is used to control the display device 24 to play the stereoscopic image or the planar image according to the first comparison result transmitted from the comparison device 20. In addition, the control device 26 can also be used to compare the image capture modules 12 and the set of specification data stored in the second storage device 22 to generate a second comparison result, provide an outline extraction function option, determine whether the outline extraction function option is enabled, and according to the second comparison result and the The result of the judgment determines whether to activate the contour capture device 16 to capture the contour images of the glasses within the predetermined range, and the control device 26 can be image playing software.

Next, please refer to FIG. 2 . FIG. 2 is a flowchart of a method for playing images according to data comparison results according to an embodiment of the present invention. The method includes the following procedures.

Step 200: Turn on the image display module 14;

Step 202: The control device 26 compares whether the specification of the image capture module 12 conforms to the set of specification data stored in the second storage device 22 . If yes, execute step 204; if not, execute step 206;

Step 204: The control device 26 determines whether the contour capture function option is enabled. If yes, execute step 208; if not, execute step 206;

Step 206: the image display module 14 is switched to the user manual mode;

Step 208: the control device 26 activates the contour capture device 16 to capture the contour images of the glasses within the predetermined range;

Step 210 : The comparing device 20 compares whether the profile images of glasses within the predetermined range captured by the profile capturing device 16 match the set of profile image data stored in the first storage device 18 . If yes, execute step 214; if no, execute step 212;

Step 212: the control device 26 controls the display device 24 of the image display module 14 to play the planar image;

Step 214: The control device 26 controls the display device 24 of the image display module 14 to play the stereoscopic image.

The following is a detailed description of the operation process of the image playing system 10 . When the user wants to use the image display system 10 to view images, first, the user must first start the image display module 14 (step 200), and then, the control device 26 in the image display module 14 will start to compare and connect to the image display module. Whether the specification of the image capture module 12 of 14 meets the set of specification data stored in the second storage device 22 (step 202), for example, the control device 26 will capture the advanced The hardware information provided by the programming connector (Advanced Programmer Interface, API) is used to know the specifications of the image capture module 12, and then compared with the set of specification data stored in the second storage device 22, and it can be seen from the above , this group of specification data is the specification data corresponding to the network camera with image recognition function, that is to say, the control device 26 is confirming whether the image capture module 12 can be used to carry out the subsequent image recognition process, when the image capture module 12 does not meet the When each piece of specification data in the group of specification data is completed, it means that the image capture module 12 does not have the image recognition function, therefore, the image display module 14 will automatically enter the user manual mode, that is, if the user wants to view The image played by the image display module 14 needs to manually perform related software and hardware operations, such as pressing the play button; otherwise, when the image capture module 12 conforms to one of the specification data in the set , then step 204 is performed. In step 204, the control device 26 will provide the contour capture function option, which can be enabled by default or determined by the user. After the control device 26 compares the image capture module 12 is After conforming to one of the specification data in the set of specification data, the control device 26 will then judge whether the contour capture function option is enabled to generate a judgment result and decide whether to start the contour capture device 16 to capture the predetermined result according to the judgment result. The outline image of the glasses within the range, that is to say, when the control device 26 judges that the outline capture function option is closed, the image display module 14 will enter the above-mentioned user manual mode (step 206); otherwise, when the control device When 26 judges that the contour capture function option is enabled, the control device 26 will start the contour capture device 16 and begin to capture the contour image of the glasses within the predetermined range (step 208), so as to carry out the subsequent image recognition process. The predetermined range mentioned here is preferably the range of the user's face, and the capture of the glasses outline image used in step 208 is a common image capture technology in the prior art, such as background subtraction, phase contrast, etc. Adjacent image difference method, optical flow method, etc. For example, the contour extraction device 16 can use the background subtraction method to separate the glasses contour image from the user's face range image separately. The so-called background subtraction method is to use a A background image without any moving objects in the field of view (here is the face range image when the user is not wearing stereo glasses) and the current image (here is the face range image when the user wears stereo glasses) difference operation, and then binarize the difference result to obtain an independent glasses contour image.

Next, after the contour extraction device 16 captures the contour image of the glasses within the predetermined range, the comparison device 20 will start to compare the contours of the glasses within the predetermined range captured by the contour retrieval device 16 Whether the image conforms to the group of contour image data stored in the first storage device (step 210), as can be seen from the above, the group of contour image data stored in the first storage device is the contour image data corresponding to at least one stereoscopic glasses, meaning That is, the set of profile data includes profile images of 3D glasses applicable to the 3D display technology adopted by the image display module 14 , such as polarized glasses of different sizes. When the comparison device 20 compares that the contour image of the glasses within the predetermined range captured by the contour extraction device 16 does not match each piece of contour image data in the set of contour image data, it means contour extraction The outline image of the glasses in the predetermined range captured by the device 16 may be only myopia glasses worn by the user rather than polarized glasses that can be used to watch stereoscopic images. Therefore, the control device 26 will control the display device 24. The planar image that can be viewed with polarized glasses (step 212); otherwise, when the comparison device 20 compares the contour images of the glasses within the predetermined range captured by the contour extraction device 16 to the set of contour image data If there is a piece of outline image data in it, it means that the user has put on the corresponding polarized glasses, and the control device 26 will control the display device 24 to play the stereoscopic image (step 212 ).

The display method of the above-mentioned stereoscopic image can adopt the common stereoscopic image display technology in the prior art. The technology disclosed in Taiwan Patent Application No. 097134826 previously filed by Wistron Information Technology Co., Ltd. is described below. The technology disclosed in Taiwan Patent Application No. 097134826 uses the method of changing the polarization angle of the polarized image to display a stereoscopic image as an example to describe the operating principle of the image display module 14 for displaying a stereoscopic image. In short, the technology disclosed in Taiwan Patent Application No. 097134826 is to use the control voltage source to change the arrangement of liquid crystal molecules in the liquid crystal layer and then alternately change the polarization angle of the polarized image passing through it so that the user can only It is necessary to wear corresponding polarized glasses so that the left and right eyes can see images with different viewing angles. Therefore, when the control device 26 controls the display device 24 to display the stereoscopic images, the display device 24 will sequentially output the images in the second storage device 22. The first group of images and the second group of images contained in the stored stereoscopic images, please note that the image content of the first group of images is substantially the same as the image content of the second group of images , the only difference lies in the angle of view, that is, the first set of images is recorded with the angle of view corresponding to the user’s left eye, while the second set of images is recorded with the angle of view corresponding to the user’s right eye Viewing angle for image recording. It can be seen from the above that the display device 24 is a thin film transistor liquid crystal display, therefore, the first group of images and the second group of images will produce the effect of image polarization after passing through the first liquid crystal layer in the display device 24 , assuming that both the first group of images and the second group of images are converted into horizontally polarized images and that the display device 24 sequentially displays the first group of images in an alternately staggered manner at a display speed of 30 frames per second Then, the display device 24 will change the arrangement of the liquid crystal molecules in the second liquid crystal layer in the display device 24 by applying voltage or not, and then make the first group of images After the image passes through the second liquid crystal layer in the display device 24, it is still a horizontally polarized image, and the second group of images will turn into a vertically polarized image after passing through the second liquid crystal layer in the display device 24. Finally, the user's left eye can see the first group of images of the horizontal polarization transmitted from the display device 24 by using the left eye horizontal polarizing lens worn by the user, and the user's right eye will The second group of vertically polarized images transmitted from the display device 24 can be seen by using the right-eye vertically polarized lens worn by it. In this way, at a display speed of 30 frames per second on the display device 24 , the pictures of the first group of images and the pictures of the second group of images can be superimposed into the stereoscopic images played continuously in the user's brain due to the effect of persistence of vision; otherwise, when the control device 26 controls the display When the device 24 displays the planar image, the display device 24 can only output the first group of images or the second group of images to produce the effect of outputting the planar image, that is, the above-mentioned stereoscopic image includes In the case of the planar image, the user can view the planar image output by the display device 24 without wearing stereoscopic glasses. In addition, the image data storage method is not limited to the above-mentioned method. For example, the second storage device 22 can also store the stereoscopic image and the planar image respectively. When the display device 24 needs to output a planar image, the control device 26 will The display device 24 is controlled to display the planar image, and when the display device 24 needs to output a stereoscopic image, the control device 26 will control the display device 24 to display the stereoscopic image, thus simplifying the image display control process.

In addition, it is worth noting that the above-mentioned step 202 of confirming whether the image capture module 12 has the image recognition function and step 204 of confirming whether the outline function option is enabled are steps that can be omitted, that is, after the user After the image display module 14 is turned on, the image playback system 10 provided by the present invention can skip steps 202 and 204 and directly control the image capture module 12 to capture and compare the glasses outline images within the predetermined range, and then Play the stereoscopic image or the planar image according to the comparison result; or the image playing system 10 can alternatively perform step 202 or step 204 .

Compared with the prior art that needs to manually control the playback of images, the image playback system 10 provided by the present invention can use the image recognition results of the stereoscopic glasses of the image capture module 12 to achieve the automatic playback of stereoscopic images or planar images by the image display module 14. Purpose, that is to say, if the image capture module 12 recognizes that the user wears stereo glasses that meet the specifications, the image display module 14 will automatically play the stereo image for the user to watch; otherwise, if the image capture module 12 recognizes If the user does not wear stereoscopic glasses, the image display module 14 will only play the planar image. In summary, no matter whether the user wants to watch the stereoscopic image or the planar image, the image display system 10 provided by the present invention allows the use of The operator controls the image display module to enter the stereoscopic display mode or the flat display mode by using the action of wearing or not wearing the stereoscopic glasses, without going through a series of software and hardware operations required by the prior art, such as pressing the play button or manually By switching the playback mode of the image playback software, etc., the convenience in use of the stereoscopic image playback system can be greatly improved.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims (24)

1. A method for playing images according to data comparison results, comprising: Open the image display module; Detect glasses data within a predetermined range; comparing the detected glasses data within the predetermined range with a set of data to generate a first comparison result; The image display module plays a stereoscopic image or a planar image according to the first comparison result. 2. The method according to claim 1, wherein if the glasses data matches one piece of data in the set of data, the image display module plays the stereoscopic image. 3. The method according to claim 1, wherein if the glasses data does not match each piece of data in the set of data, the image display module plays the plane image. 4. The method according to claim 1, further comprising storing the stereoscopic image and the planar image in the image display module. 5. The method according to claim 1, further comprising storing the stereoscopic image in the image display module, the stereoscopic image comprising the planar image. 6. The method according to claim 1, wherein detecting the glasses data in the predetermined range is an image capture module to capture the outline image of the glasses in the predetermined range, and combining the detected glasses data in the predetermined range with The comparison of the set of data is that the image capture module compares the captured outline image of the glasses with a set of outline image data. 7. The method of claim 6, further comprising: storing a set of specification data in the image display module; comparing the specification of the image capture module with the set of specification data to generate a second comparison result; and The image display module determines whether to activate the image capture module to capture the outline images of glasses within the predetermined range according to the second comparison result. 8. The method according to claim 7, wherein the image display module activates the image capture module to capture the image within the predetermined range when the specification of the image capture module conforms to a piece of specification data in the set of specification data. Outline image of glasses. 9. The method of claim 6, further comprising: The image display module provides contour extraction function options; The image display module determines whether the contour capture function option is enabled; and The image display module determines whether to start the image capture module to capture the outline image of the glasses within the predetermined range according to the judgment result. 10 . The method according to claim 9 , wherein the image display module activates the image capture module to capture the outline images of glasses within the predetermined range when the image display module determines that the outline capture function option is enabled. 11 . 11. An image playback system capable of capturing glasses outline images, comprising: Image capture module, which includes: a contour extraction device, used to capture the contour image of the glasses within a predetermined range; a first storage device for storing a set of contour image data corresponding to at least one stereoscopic glasses; and a comparing device, used for comparing the profile images of glasses within the predetermined range captured by the profile capturing device and the set of profile image data to generate a first comparison result; and Image display module, which includes: a display device for displaying stereoscopic or planar images; and The control device is used to control the display device to play the stereoscopic image or the planar image according to the first comparison result transmitted from the comparison device. 12. The image playback system according to claim 11, wherein the image display module further comprises a second storage device for storing the stereoscopic image and the planar image. 13. The image playback system according to claim 11, wherein the image display module further comprises a second storage device for storing the stereoscopic image, the stereoscopic image includes the planar image. 14. The image playback system according to claim 11, wherein the control device is used to match the contour image of the glasses within the predetermined range captured by the contour capture device to a contour in the set of contour image data When receiving image data, the display device is controlled to play the stereoscopic image. 15. The image playback system according to claim 11 , wherein the control device is used to detect that the profile images of the glasses within the predetermined range captured by the profile capture device do not match each of the set of profile image data. When the pen outline image data is used, the display device is controlled to play the plane image. 16. The image playback system according to claim 11, wherein the image display module also includes: The second storage device is used to store a set of specification data, and the control device is used to compare the specification of the image capture module with the set of specification data to generate a second comparison result and determine whether to use the second comparison result according to the second comparison result The profile capture device is activated to capture profile images of glasses within the predetermined range. 17. The image playback system according to claim 16, wherein the control device activates the outline capture device to capture the image within the predetermined range when the specification of the image capture module conforms to a piece of specification data in the set of specification data. silhouette image of glasses. 18. The image playback system according to claim 11, wherein the control device is used to provide an outline capture function option, determine whether the outline capture function option is enabled, and determine whether to activate the outline capture device according to the judgment result The contour images of the glasses within the predetermined range are acquired. 19. The image playback system according to claim 18, wherein the control device is configured to activate the contour capture device to capture the contour images of glasses within the predetermined range when it is determined that the contour capture activation function option is enabled. 20. The image playback system according to claim 11, wherein the image capture module is a network camera, and the profile capture device is an image capture lens of the network camera. 21. The image playback system according to claim 11, wherein the control device is image playback software. 22. The image playback system according to claim 11, wherein the display device is a thin film transistor liquid crystal display. 23. The image playback system according to claim 11, wherein the comparison device is contour image comparison software. 24. The image playback system according to claim 11, wherein the image display module is a notebook computer.

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