TW201407540A - Image processing method and image display system - Google Patents

Abstract

An image processing method is disclosed, which includes receiving an image data of a frame and dividing the image data into a first image data corresponding to a 2D image and a second image data corresponding to a 3D image, converting the first image data into a 2D image data according to a 2D image format and converting the second image data into a 3D image data according to a 3D image format, and outputting the 2D image data and the 3D image data for displaying the frame.

Description

Image processing method and image display system

The present invention relates to an image processing method and an image display system, and more particularly to an image processing method and an image display system that can avoid reducing the resolution of a two-dimensional image in an image frame.

Internet TV (Web TV) combines the functions of network information dissemination and multimedia display. Through the application of Internet TV, users can obtain instant and large amount of video content while obtaining Internet information. Therefore, the user can enjoy the desired video content as desired, and is no longer limited to being able to obtain only through the broadcast television or the optical disk storage device.

Generally, the user terminal of the network television can receive the image data from the content provider by using the image receiving device, and convert the received image data into a display signal suitable for the display device to achieve the purpose of image display. . Due to the diversification of Internet TV applications, video data usually includes various types of video content, such as web page graphics, graphical user interface (GUI), on-screen display (OSD), and video content. Wait. for example. If the user wants to watch the video on a certain webpage, the video is played in a small pane of the multimedia player software. In this case, the image frame viewed by the user will include a web page image and a video image. When the user receives the image After receiving the relevant image data of the webpage image and the video image, the device will perform overlay processing on the webpage image and the video image to synthesize the image image, and convert the image image into a signal suitable for the display device to provide to display. The device plays. When there is a three-dimensional (3D) image in the image, the image receiving device of the user end must perform a three-dimensional image format conversion process on the received image data to generate a three-dimensional image signal corresponding to the image format. The effect of the user feeling the three-dimensional image content can be provided on the display device.

For example, please refer to FIG. 1 . The image screen F includes webpage images and video images. The webpage image is a two-dimensional image, and the video image is a three-dimensional image of a side-by-side image format. After receiving the first image data S1 corresponding to the webpage image and the second image data S2 corresponding to the video image, the image receiving apparatus performs a three-dimensional image format conversion process on the first image data S1 and the second image data S2. To produce image data that conforms to horizontal parallel image formats. That is to say, the image receiving device cuts the image data S1 into the image data S1_L, S1_R belonging to the left and right images according to the horizontal parallel image format, and the image data S2 is cut into the image data S2_L, S2_R belonging to the left and right images. The image display chip of the subsequent stage generates corresponding left eye images and right eye images according to the display type of the display device for the display device to play. For example, when the display device is a shutter glasses type (SG) display device, the image data S1_L, S1_R, S2_L, and S2_R will be respectively stretched twice in the horizontal direction to generate corresponding left eye images and right eyes. The images, namely S_2DL, S_2DR, S_3DL, and S_3DR, are simultaneously displayed by interlaced display, so that the user can see a vivid 3D video movie.

However, the conversion of the horizontal parallel image format will make the resolution of the image half, that is, only half of the original resolution in the horizontal direction. As a result, for the web image S_2D that originally belonged to the two-dimensional image, half of the resolution will be sacrificed. In this case, although the user can see the video image S_3D having the 3D effect, since the resolution of the webpage image is halved, the displayed webpage image also has a problem of image distortion, which in turn affects the screen. Display quality.

Therefore, one of the main purposes of the present invention is to provide an image processing method and an image display system to solve the problem of reduced resolution of two-dimensional images in an image frame.

The invention discloses an image processing method, comprising: receiving image data of a picture, and dividing the image data into one first image data related to the two-dimensional image and second image data related to one of the three-dimensional images; The image format converts the first image data into a two-dimensional image data, and converts the second image data into a three-dimensional image data according to a three-dimensional image format; and outputs the two-dimensional image data and the three-dimensional image data to Realize the display of this screen.

The invention further discloses an image display system, comprising a determining unit, configured to receive image data of a picture, and divide the image data into a first image data related to one of the two-dimensional images and a second image related to the three-dimensional image. Data conversion unit for converting the first image data into a two-dimensional image data according to a two-dimensional image format, and converting the second image data into one or three according to a three-dimensional image format And the image output unit is configured to convert the two-dimensional image data and the three-dimensional image data into a two-dimensional display image and a three-dimensional display image according to a display type.

Please refer to FIG. 2, which is a schematic diagram of an embodiment of an image display system 20 of the present invention. The image display system 20 includes a determination unit 202, a format conversion unit 204, an image output unit 206, and a display screen 208. The determining unit 202 is configured to receive the image data S of a picture F, and divide the image data S into one of the first image data S1 related to the two-dimensional image and the second image data S2 related to one of the three-dimensional images. The image frame F may be an image screen of the user terminal that the content provider at the transmitting end desires to provide. The format conversion unit 204 is configured to convert the first image data S1 into a two-dimensional image data S1_2D according to a two-dimensional image format. At the same time, the format conversion unit 204 converts the second image data S2 into a three-dimensional image data S2_3D according to a three-dimensional image format. For example, the 3D image format may be a side-by-side image format or a top-and-bottom image format, but is not limited thereto. The image output unit 206 is configured to convert the two-dimensional image data S1_2D into the two-dimensional display image S_2D according to the display type of the display screen 208, and convert the three-dimensional image data S2_3D into the three-dimensional display image S_3D. The display screen 208 is used to display the two-dimensional display image S_2D and the three-dimensional display image S_3D outputted by the image output unit 206 to realize image display of the screen F. For example, the display type of the display screen 208 may be a shutter glasses type (SG) display type or a patterned retarder type (PR) display type, but is not limited thereto.

In short, after the image display system 20 receives the image data transmitted by the transmitting end, the determining unit 202 can distinguish the image data belonging to the two-dimensional image and the three-dimensional image in the image frame of the transmitting end. The format conversion unit 204 further converts the image data according to the corresponding image transmission format, so that the 3D image can smoothly exhibit the 3D effect, and the 2D image can retain the original resolution without causing resolution. The problem of picture distortion caused by halving.

On the other hand, the determining unit 202 further determines that the display position P1 corresponding to one of the first image data S1 and the display position P2 corresponding to one of the second image data S2 are determined. For example, as shown in FIG. 3, FIG. 3 is a schematic diagram of an embodiment of determining a display position of an image according to the present invention. After receiving the image data S of the screen F and dividing the image data S into the first image data S1 and the second image data S2, the determining unit 202 can determine the display position P1 and the display position according to the received image data S. P2. Alternatively, the determining unit 202 can interpret the image location information transmitted by the transmitting end, and determine the display position P1 and the display position P2 accordingly. Next, information indicating the position P1 and the display position P2 is supplied to the image output unit 206. In this case, the image output unit 206 displays the two-dimensional display image S_2D on the display position P1 of the screen F and the three-dimensional display image S_3D on the display position P2 of the screen F in accordance with the arrangement for displaying the screen. Each sub screen is displayed at the correct screen position.

In this embodiment, the user can use the image display system 20 to process the received image data to avoid the low resolution of the two-dimensional image, thereby achieving an excellent display function. For example, please refer to Figure 4, and Figure 4 is shown in Figure 2. A schematic diagram of an operational embodiment of the image display system 20 for processing images. When the user is viewing a 3D video movie on a certain webpage, the image screen F will contain the webpage image of the webpage content played by the web browser and the video image played in the small pane of the multimedia player software. That is to say, the image frame F that the user is viewing includes a webpage image (two-dimensional image) and a video image (three-dimensional image). At this time, if the sender (content provider) transmits in a horizontal parallel image transmission format. Video image. In this case, after the determining unit 202 of the image display system 20 receives the image data S of the screen F, the determining unit 202 determines the first image data S1 belonging to the two-dimensional image and the second image data S2 belonging to the three-dimensional image. . In this case, the format conversion unit 204 converts the first image data S1 into a two-dimensional image data S1_2D according to the two-dimensional image format. At the same time, since the transmitting end transmits the video image in the horizontal parallel image transmission format, the format converting unit 204 converts the second image data S2 into the three-dimensional image data S2_3D according to the horizontal parallel image transmission format, that is, the second image. The data S2 is divided into three-dimensional image data S2_3DL and S2_3DR.

Next, the image output unit 206 converts the two-dimensional image data S1_2D and the three-dimensional image data S2_3D into corresponding two-dimensional display images S_2D and three-dimensional display images S_3D according to the display type of the display screen 208. If the display screen 208 is a shutter display device, the image output unit 206 will respectively extend the three-dimensional image data S2_3DL and S2_3DR by a factor of two in the horizontal direction (ie, the horizontal image data S2_3DL and S2_3DR are doubled in the horizontal direction by 2 times). Corresponding three-dimensional display images S_3DL and S_3DR are generated (ie, the three-dimensional display image S_3D includes three-dimensional display images S_3DL and S_3DR). At the same time, the image output unit 206 converts the two-dimensional image data S1_2D Corresponding two-dimensional display image S_2D (including two-dimensional display image S_2DL and two-dimensional display image S_2DR), wherein the two-dimensional display image S_2DL and the two-dimensional display image S_2DR are left eye image data and right eye image data, respectively, three-dimensional image The data S_3DL and S_3DR are left eye image data and right eye image data, respectively. Since the two-dimensional image data S1_2D is not divided, the two-dimensional display image S_2D still retains the original resolution. Finally, the image output unit 206 provides the three-dimensional display images S_3DL, S_3DR and the two-dimensional display images S_2DL, S_2DR to the display screen 208, and the display purpose of the screen F can be realized by interlacing the left-eye image data and the right-eye image data. Similarly, if the display screen 208 is a polarized display device, the image output unit 206 will extend the three-dimensional image data S2_3DL and S2_3DR by a factor of two in the horizontal direction (ie, the horizontal image data S2_3DL and S2_3DR are doubled in the horizontal direction). And reducing the three-dimensional image data S2_3DL and S2_3DR to half in the vertical direction, and performing corresponding line-by-line interleave processing to generate corresponding three-dimensional display images S_3DL and S_3DR (ie, three-dimensional display image S_3D) Contains 3D display images S_3DL and S_3DR).

Please refer to FIG. 5, which is a schematic diagram of another operational embodiment of the image display system 20 shown in FIG. 2 when processing images. The embodiment shown in Fig. 5 is based on the case where the transmitting end (content provider) transmits the video image in the above parallel video transmission format. It is assumed that the image frame F that the user is viewing includes a webpage image (two-dimensional image) and a video image (three-dimensional image). Similarly, after the determining unit 202 of the image display system 20 receives the image data S of the screen F, the determining unit 202 determines the first image data S1 belonging to the two-dimensional image and the second image belonging to the three-dimensional image. Information S2. The format conversion unit 204 converts the first image data S1 into a two-dimensional image data S1_2D according to the two-dimensional image format. At the same time, since the transmitting end transmits the video image in the above parallel parallel image transmission format, the format converting unit 204 converts the second image data S2 into the three-dimensional image data S2_3D according to the upper and lower parallel image transmission formats, that is, the second image. The data S2 is divided into three-dimensional image data S2_3DL and S2_3DR.

Similarly, the image output unit 206 converts the two-dimensional image data S1_2D and the three-dimensional image data S2_3D into corresponding two-dimensional display images S_2D and three-dimensional display images S_3D according to the display type of the display screen 208. If the display screen 208 is a shutter type display device, the image output unit 206 will respectively extend the three-dimensional image data S2_3DL and S2_3DR by a factor of two in the vertical direction (ie, magnify the three-dimensional image data S2_3DL and S2_3DR by two times in the vertical direction) to generate Corresponding three-dimensional display images S_3DL and S_3DR (ie, three-dimensional display image S_3D). At the same time, the image output unit 206 converts the two-dimensional image data S1_2D into a corresponding two-dimensional display image S_2D (ie, the two-dimensional display image S_2DL and the two-dimensional display image S_2DR), wherein the two-dimensional display image S_2DL and the two-dimensional display image S_2DR respectively For the left eye image data and the left eye image data, the three-dimensional image data S_3DL and S_3DR are the left eye image data and the right eye image data, respectively. Since the two-dimensional image data S1_2D is not divided, the two-dimensional display image S_2D still retains the original resolution. Finally, the image output unit 206 provides the three-dimensional display images S_3DL, S_3DR and the two-dimensional display images S_2DL, S_2DR to the display screen 208, and the display purpose of the screen F can be realized by interlacing the left-eye image data and the right-eye image data. Similarly, if the display screen 208 is a polarized display The image output unit 206 respectively extends the three-dimensional image data S2_3DL and S2_3DR by a factor of two in the vertical direction (ie, magnifies the three-dimensional image data S2_3DL and S2_3DR by two times in the vertical direction), and performs corresponding line interleaving (line-by). -line interleave) to generate corresponding three-dimensional display images S_3DL and S_3DR (ie, the three-dimensional display image S_3D includes three-dimensional display images S_3DL and S_3DR). In short, the image display system 20 can determine the corresponding conversion between the two-dimensional image and the three-dimensional image according to the image transmission format, so that the two-dimensional image or the three-dimensional image contained in the image frame F can be truly The ground is presented without causing a problem that the resolution of the two-dimensional image of the image is reduced.

It is to be noted that the embodiment shown in FIG. 2 is only one embodiment of the present invention, and various changes made thereto are within the scope of the present invention. For example, here is an illustration of an example of an image screen having only one three-dimensional image block and one two-dimensional image block for convenience of explanation. However, for an image frame having more than one 3D image block, the image display system 20 of the embodiment of the present invention can be used for processing. In addition, the determining unit 202 and the format converting unit 204 may be disposed in a video receiving device, such as a system of a set-up box, to process a single chip. The image output unit can be disposed in a display device, such as a control chip of a liquid crystal television, but is not limited thereto.

In summary, the image display system of the present invention can distinguish the image data belonging to the two-dimensional image and the three-dimensional image in the image image of the transmitting end, and format the image data according to the corresponding image transmission format, thus, three-dimensional The image will be presented smoothly Now the three-dimensional display effect, while the two-dimensional image can retain the original resolution, and can effectively avoid the image distortion caused by the halving of the resolution.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

20‧‧‧Image Display System

202‧‧‧judging unit

204‧‧‧Format conversion unit

206‧‧‧Image output unit

208‧‧‧display screen

F‧‧‧image screen

P1, P2‧‧‧ display position

S, S_2DL, S_2DR, S_3DL, S_3DR, S1_L, S1_R, S2_L, S2_R‧‧‧ image data

S1‧‧‧ first image data

S2‧‧‧Second imagery

S_2D, S_2DL, S_2DR‧‧‧ two-dimensional display image

S_3D, S_3DL, S_3DR‧‧‧3D display image

S1_2D‧‧‧2D image data

S2_3D, S2_3DL, S2_3DR‧‧‧3D image data

Figure 1 is a schematic diagram of the operation of the conventional image display processing.

2 is a schematic diagram of an embodiment of an image display system of the present invention.

FIG. 3 is a schematic diagram of an embodiment of determining a display position of an image according to the present invention.

Fig. 4 and Fig. 5 are respectively schematic diagrams showing an operation example of the image display system shown in Fig. 2 when processing images.

20‧‧‧Image Display System

202‧‧‧judging unit

204‧‧‧Format conversion unit

206‧‧‧Image output unit

208‧‧‧display screen

S‧‧·Image data

S1‧‧‧ first image data

S2‧‧‧Second imagery

S_2D‧‧‧ two-dimensional display image

S_3D‧‧‧3D display image

S1_2D‧‧‧2D image data

S2_3D‧‧‧3D image data

Claims (9)

An image processing method includes: receiving image data of a picture, and dividing the image data into a first image data related to one of the two-dimensional images and a second image data related to one of the three-dimensional images; according to a two-dimensional image format Converting the first image data into a two-dimensional image data, converting the second image data into a three-dimensional image data according to a three-dimensional image format, and outputting the two-dimensional image data and the three-dimensional image data to implement the The display of the screen. The image processing method of claim 1, wherein the step of dividing the image data into the first image data related to the two-dimensional image and the second image data related to the three-dimensional image further comprises: determining that the image data corresponds to a first display position of the first image data and a second display position corresponding to one of the second image data. The image processing method of claim 2, wherein the step of outputting the two-dimensional image data and the three-dimensional image data to realize the display of the screen further comprises: displaying the two at the first display position of the screen Dimensional image data; and the second display position of the screen is displayed. The image processing method of claim 1, wherein the step of outputting the two-dimensional image data and the three-dimensional image data to realize the display of the screen comprises: respectively, according to a display type of the display screen, respectively, the two-dimensional image data With the three-dimensional shadow Converting the image data into a two-dimensional display image and a three-dimensional display image; and displaying the two-dimensional display image and the three-dimensional display image on the display screen to realize display of the image. The image processing method of claim 1, wherein the three-dimensional image format is a horizontal parallel image format or an upper and lower parallel image format. An image display system includes: a judging unit configured to receive image data of a picture, and divide the image data into a first image data related to one of the two-dimensional images and a second image data related to one of the three-dimensional images; a format conversion unit for converting the first image data into a two-dimensional image data according to a two-dimensional image format, and converting the second image data into a three-dimensional image data according to a three-dimensional image format; and an image The output unit is configured to convert the two-dimensional image data and the three-dimensional image data into a two-dimensional display image and a three-dimensional display image according to a display type. The image display system of claim 6, wherein the determining unit determines a first display position corresponding to one of the first image data and a second display position corresponding to one of the second image data. The image display system of claim 7, wherein the image output unit respectively respectively determines the two-dimensional image according to the first display position, the second display position, and the display type Converting the data and the 3D image data into the 2D display image and the 3D display image, so that the 2D display image is displayed on the first display position of the screen and the 3D display image is displayed on the second display of the screen position. The image display system of claim 6, wherein the three-dimensional image format is a horizontal parallel image format or an upper and lower parallel image format.