CN1414794A - Equipment and method of displaying stereo cartoon in viewing window - Google Patents
Equipment and method of displaying stereo cartoon in viewing window Download PDFInfo
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- CN1414794A CN1414794A CN 01137128 CN01137128A CN1414794A CN 1414794 A CN1414794 A CN 1414794A CN 01137128 CN01137128 CN 01137128 CN 01137128 A CN01137128 A CN 01137128A CN 1414794 A CN1414794 A CN 1414794A
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Abstract
A device to display the stereocartoon picture on the viewing window is implemented in a computer system with display device, and it is composed of one screen display buffer and two buffers outside the screen, among which the screen display buffer stores the screen picture data displayed on the display device. The buffers outside the screen in double buffered structure stores the current frame picure data in one buffer and to store the next frame picture data under the preparation in another buffer as each of both the current and the next from picture data containing a left eye and right eye picture data. The picture data of the current frame are loaded into the screen display buffer in the Bitblt manner alternatively as viewing window picture data.
Description
Technical field
The present invention is about a kind of Apparatus and method for that shows 3-D cartoon, particularly in form, show the Apparatus and method for of 3-D cartoon about a kind of double-damping structure (Double-buffered Architecture) and Bitblt (position piece conversion, Bit BlockTransfer) mode utilized.
Background technology
The human vision that why has solid, be because the human eyes scenery in the independent observation external world separately, be the scenery that left eye is seen left eye, right eye is seen the scenery of right eye, gap on the angle is arranged between two persons, then pass through the natural fusion of brain again, can in brain, present three-dimensional scenery.
The generation of 3D stereo-picture promptly utilizes identical principle.Because the shown picture of display unit is a plane picture, but generate stereoscopic vision as desire, the image that must allow images of left and right eyes see is independent separately, so its settling mode is that image Alternation Display with images of left and right eyes is on display unit, cooperate synchro-shutter viewer (Synchronized Shutter Viewer) (as crystal glasses, LC shutterglasses), the left and right image of images of left and right eyes that alternately guides enters corresponding eyes, make left eye can only see the image of left eye, and right eye can only be seen the image of right eye.In detail, promptly when the image of screen display left eye, cover right eye; Opposite, when the image of screen display right eye, promptly cover left eye.So go round and begin again, carry out Alternation Display, can make the beholder produce 3D stereoscopic vision with the speed that persists faster than human vision.
Please refer to Fig. 5 and Fig. 6, a kind of known 3D rendering technology provides the memory block 51 and 52 of two each and every one full screen sizes in the video memory of display card, and it deposits left eye image data and eye image data respectively.The picture that display unit is shown alternately corresponds to the memory block of depositing left-eye image and eye image, that is, memory block 51 and 52 one of them.That shown in Figure 5 is that the shown picture of display unit corresponds to memory block 51, and to show the situation of left eye image data, that shown in Figure 6 is that the shown picture of display unit corresponds to memory block 52, to show the situation of eye image data.When showing different pictures, a synchronous shutter viewer 2 need synchronously be carried out change action, allows the image of left eye image data only mirror user's left eye, and the image of eye image data is only mirrored user's right eye.
If play the 3D 3-D cartoon with above-mentioned technology, consider that except essential computer software and hardware is essential enough fast for the drawing or the decoding speed of each frame (frame) in the animation, and outside the matching problem of Alternation Display left-and right-eye images data and frame update, still needing solves the problem of playing the 3D 3-D cartoon under windowing environment.Because in above-mentioned known technology, the shown picture of display unit can correspond to the different blocks in the video memory at any time, so when playing the 3D 3-D cartoon, other form or existence such as image can not be arranged on the screen, the size of each frame of animation must all be a full-screen picture.
Being limited in of only can full screen showing can't be intersected collocation and using the use of other application software or purpose, for example, utilize computer-aided design research and development improvement new automobile, the process of its practice for using 3D 3-D cartoon simulating vehicle to travel, the engineer only can import parameters before simulation, begin simulation, meanwhile by the every numerical value that presents of computer recording, after simulation finishes, again by engineer's operational analysis software analysis and adjust parameter and simulate again; If when monitoring a 3D 3-D cartoon simulation that is open in the form, can open synchronously analysis software at another form with the analysis mode data, and the parameter value that utilizes the analysis result adjustment to simulate immediately, upgrade the analog picture of 3D 3-D cartoon immediately, can significantly reduce the simulation required time, quicken the research and development speed of new technology.
As mentioned above, how to provide an Apparatus and method for that in form, shows 3-D cartoon, show and 3D 3-D cartoon form so that the user opens 2D simultaneously, even a plurality of 3D 3-D cartoon form, be the current problem that needs to be resolved hurrily in fact.
Summary of the invention
At the problems referred to above, purpose of the present invention is for providing a kind of Apparatus and method for that shows 3-D cartoon in form, and it can be presented at the view data of 3-D cartoon in indivedual forms of Windows.
For reaching above-mentioned purpose, the invention provides a kind of equipment that in form, shows 3-D cartoon, be imposed in one and have in the computer system of a display unit, comprise a screen display buffer (On-screenBuffer), the outer buffer (Off-s creen Buffer) of two screens and a three-dimensional form controller (Stereo Window Controller).The screen display buffer stores the screen-picture data that are presented at display unit.The outer buffer of screen is taked double-damping structure (Double-buffered Architecture), and one of them stores the view data of present frame, and another then stores the view data of the next frame in the preparation.The view data of present frame comprises left eye image data and eye image data, and alternately is written in the screen display buffer in the mode of Bitblt, with as the viewing window pictures data.Which stores the view data of present frame in the outer buffer of three-dimensional form controller control screen, and left eye image data and eye image data are transferred to the Bitblt transfer action of screen display buffer.
The present invention also provides a kind of method that shows 3-D cartoon in form, be imposed in one and have in the computer system of display unit, this computer system comprises storage device, 3D plotting unit, a Memory Controller and a digital analog converter and cooperates a synchronous shutter viewer.According to the method that in form, shows 3-D cartoon of the present invention, the view data of present frame be stored in the outer buffer of two screens one of them, the view data of the next frame in the preparation then is stored in the outer buffer of another screen, and wherein view data comprises left-eye image and the eye image of desiring to be presented at the stereo-picture in the form.Left eye image data in the view data of present frame and eye image data alternately are transferred in the screen display buffer with as the viewing window pictures data in the mode of Bitblt.Which stores the view data of present frame and Bitblt transfer action in the outer buffer of screen wherein and controlled by three-dimensional form controller.
Owing to adopt double buffering technology according to the Apparatus and method for of 3-D cartoon that in form, shows of the present invention, can improve the 3-D cartoon image processing velocity, and control the position of present frame and next frame and the action of alternately shifting left eye image data and eye image data in the mode of Bitblt by a three-dimensional form controller, so the view data of 3-D cartoon can be presented in indivedual forms of Windows.
Description of drawings
Fig. 1 is a structure chart, and expression is according to the equipment and the system configuration thereof that show 3-D cartoon in form of the preferred embodiment of the present invention.
Fig. 2 is a flow chart, and expression is according to the method flow that shows 3-D cartoon in form of the preferred embodiment of the present invention.
Fig. 3 and Fig. 4 are schematic diagram, and expression is according to the situation that shows the 3D 3-D cartoon in form of the preferred embodiment of the present invention.
Fig. 5 and Fig. 6 are schematic diagram, and the expression known technology shows the situation of 3D 3-D cartoon.The reference numeral explanation: the outer buffer 12 three-dimensional form controller 13 storage device 143D plotting units 15 Memory Controllers 16 digital analog converters 17 display unit 2 synchro-shutter viewers 201～205 of outer buffer 113 screens of 1 computer system, 11 storage devices, 111 screen display buffers, 112 screens show step 51 memory block 52 memory block of 3-D cartoon in form
Execution mode
Hereinafter with reference to relevant drawings, the Apparatus and method for that shows 3-D cartoon in form according to the preferred embodiment of the present invention is described, wherein components identical will be illustrated with identical reference marks.
Please refer to shown in Figure 1, the equipment that shows 3-D cartoon in form according to the preferred embodiment of the present invention comprises a storage device 11 and a three-dimensional form controller 12, and wherein storage device 11 comprises a screen display buffer 111 and two outer buffers 112 and 113 of screen.Screen display buffer 111 is stored in picture data shown on the display unit 17, and it comprises the picture data of a form.
The person of noting, the picture data of form can only be the part of data stored in the whole screen display buffer 111.Still can store other data that display unit shows in the screen display buffer 111, as form, image or desktop background pattern etc.
The equipment that shows 3-D cartoon in form according to the preferred embodiment of the present invention cooperates a synchronous shutter viewer 2 to operate, and is implemented on one and has in display unit 17 computer systems 1.Computer system 1 comprises storage device 13,3D plotting unit 14, Memory Controller 15 and digital analog converter 16.
Storage device 13 can be hard disk, CDROM (read-only memory CD, Compact Disc ReadOnly Memory) or DVDROM (read-only memory digital video disk, the data memory device of Digital Video Disc ReadOnly Memory) etc. any or several embodied on computer readable, view data is stored in hard disk, CD (CD accordingly, Compact Disc), DVD (digital video disk, Digital VideoDisc) on, said storage unit 13 is carried out transfer of data via each element in bus and the computer system 1.
Data access and transfer action in the Memory Controller 15 control store devices 11.It can accept the also request of other element of decipher (interpret), confirms the address of data in storage device, so that by the storage device reading of data, or writes data in the storage device.
The view data that digital analog converter 16 will be stored in screen display buffer 111 is converted to the simulation kenel by digital kenel, to export on display unit 17, send a synchronous signal simultaneously and to synchro-shutter viewer 2, so that the left and right alternately guiding action of vertical more new element of the screen of display unit 17 and synchro-shutter viewer 2 synchronously.
Note, the storage device 11 of present embodiment and three-dimensional form controller 12 can be arranged on the same circuit board with above-mentioned 3D plotting unit 14, Memory Controller 15 and digital analog converter 16, or be combined in the chipset, to reduce volume and to increase work efficiency.Those skilled in the art can look actual demand and carry out various design under the situation that does not exceed spirit of the present invention and category.
In the present invention, in order to improve the speed of data processing, storage device 11 has adopted the double buffering design, as being input as example with data, the data of being imported are written into a buffer in advance, go again after waiting to be fully loaded with and be written into another buffer, two persons alternately receive data, so, when a buffer receives data, another buffer just can be handled data wherein, data processing speed faster than or equal under the situation of information rate, the speed that double buffering design receives data is approximately two times of single buffer.
In like manner, with present embodiment, be provided with the outer buffer 112 and 113 of two screens, the outer buffer 112 of screen stores the left-and right-eye images data that present desire alternately is written into screen display buffer 111,113 left-and right-eye images data that store the next frame in handling of the outer buffer of another screen.After the next frame view data was finished dealing with, the role of two outer buffers of screen promptly exchanged, to reach the purpose that improves data processing speed.
The left-and right-eye images data storing that three-dimensional form controller 12 controls are produced is screen outside among the buffer 112 or 113, and which the outer buffer of screen that should be loaded in screen display buffer 111 at present is.Its detailed start flow process will be in describing in detail hereinafter.
For content of the present invention is more readily understood, below will lift an example, and cooperate Fig. 2, Fig. 3 and Fig. 4 that the method for demonstration 3-D cartoon in form according to the preferred embodiment of the present invention is described.
Please refer to Fig. 2, in in form, showing in the method for 3-D cartoon according to the preferred embodiment of the present invention, the view data that step 201 stores a present frame one of them of buffer two screens outside, and view data another in the buffer outside screen of the next frame in the preparation.
In the present embodiment, the 3D data or the image that are stored in storage device 13 come source file to be sent to 3D plotting unit 14 through bus, 3D plotting unit 14 is according to the principle of 3D stereo-picture, generation has a left eye image data and eye image data of differential seat angle, and writes the left-eye image or the eye image data address of the outer buffer 112 of screen or 113.
Three-dimensional form controller 12 is via Memory Controller 15, and the next frame view data that indication disposes is stored in the outer buffer 112 or 113 of screen, and the selection of the outer buffer of screen is then decided on the storage location of present frame view data.For example, please refer to Fig. 3 and Fig. 4, when the present frame view data was stored in outside the screen buffer 112, three-dimensional form controller 12 can be stored in the next frame view data in preparing the outer buffer 113 (as shown in Figure 4) of screen.When the present frame view data was stored in outside the screen buffer 113, the next frame view data during 12 of three-dimensional form controllers will be prepared was stored in the outer buffer 112 (as shown in Figure 3) of screen.
In the present embodiment, three-dimensional form controller 12 will consider the vertical flyback action of display unit 17 when carrying out above-mentioned Bitblt action, carry out the Bitblt action between two vertical flyback actions.For example, three-dimensional form controller 12 can be sent control signal in the following manner:
Control signal: left eye image data Bitblt is in the screen display buffer
(display unit scans the screen display buffer from left to bottom right)
(display unit vertical flyback)
Control signal: eye image data Bitblt is in the screen display buffer
(display unit scans the screen display buffer from left to bottom right)
(display unit vertical flyback)
Control signal: left eye image data Bitblt is in the screen display buffer
So, left eye image data and eye image data can correctly be presented at display unit, do not carry out as yet and can not produce the vertical flyback action, and the viewing window pictures data in the screen display buffer 111 are but taken place by the situation that displacement is fallen.
In the buffer 113, whether the view data of next frame disposes outside screen in step 203 judgement.Finish if still be untreated, then get back to step 201 and step 202, continue left eye image data and eye image data in the outer buffer 112 of screen are transferred to the screen display buffer, and outside screen, prepare the next frame data in the buffer 113.That is, position as the present frame view data is the outer buffer 112 of screen, then three-dimensional form controller 12 can be sent and ask Memory Controller 15, and left eye image data in the present framework view data and eye image data alternately are written into screen display buffer 111.
If in step 203, the view data of next frame disposes, then enters step 204, and the next frame that disposes is set at present frame, and to set new desire processed frame be next frame.Please refer to Fig. 4, when the view data of next frame had disposed, the next frame that three-dimensional form controller 12 can will dispose was set at present frame, and the frame in the new processing is set at next frame.At this moment, three-dimensional form controller 12 can be sent and ask Memory Controller 15, and the left-and right-eye images data in the outer buffer 112 of screen are replaced Bitblt to screen display buffer 111, and the two field picture in will handling is stored in the outer buffer 113 of screen.
If step 205 judge to finish, for example the user assigns END instruction, or all frames all dispose, then finishes whole flow process.If do not finish then to get back to step 201 and 202 as yet.
In sum, in whole flow process, three-dimensional form controller is responsible for coordinating the following action of control:
(1) whether is ready to complete according to next frame, whether determines the outer buffer of toggle screen; And
(2) vertical flyback of considering display unit is moved and is carried out the left-and right-eye images data and replace the action of Bitblt to the screen display buffer.
So, because the display frame of display unit corresponds to same memory block, it is the screen display buffer, and adopting double-damping structure to quicken picture handles, and in storage device, shift view data apace in the mode of Bitblt, therefore can reach the purpose that in form, shows the 3D 3-D cartoon.
The above only is an illustrative, but not is restrictive.Anyly do not break away from spirit of the present invention and category, and, all should be included in the accompanying Claim its equivalent modifications of carrying out or change.
Claims (18)
1. an equipment that shows 3-D cartoon in form is imposed in one and has in the computer system of a display unit, comprises:
One screen display buffer, its storage are presented at screen-picture data of this display unit, and these screen-picture data comprise viewing window pictures data; And
Take the outer buffer of two screens of double buffering structure, one of the outer buffer of these screens stores the view data of present frame, and another of the outer buffer of these screens then stores the view data of the next frame in the preparation,
Wherein the view data of the view data of this present frame and next frame comprises left eye image data and eye image data respectively, and
This left eye image data in the view data of this present frame and this eye image data are alternately transferred in this screen display buffer by the outer buffer of these screens in the mode of position piece conversion, with as these viewing window pictures data.
2. the equipment that shows 3-D cartoon in form as claimed in claim 1 also comprises:
One three-dimensional form controller, it is controlled, and which stores the view data of this present frame in the outer buffer of these screens, and the transfer action of the position piece conversion of this left eye image data and these eye image data.
3. the equipment that shows 3-D cartoon in form as claimed in claim 2 also comprises:
One 3D plotting unit, it prepares this left eye image data and this eye image data of this next frame.
4. the equipment that in form, shows 3-D cartoon as claimed in claim 3, wherein should judge according to the signal of this 3D plotting unit whether this left eye image data of this next frame and this eye image data are ready to complete by solid form controller, which stores the view data of this present frame in the outer buffer of these screens to control.
5. the equipment that shows 3-D cartoon in form as claimed in claim 2 also comprises:
One Memory Controller, its signal according to this solid form controller carry out the transfer action of the position piece conversion of this left eye image data and these eye image data.
6. the equipment that shows 3-D cartoon in form as claimed in claim 1 wherein should solid form controller considers also that the vertical flyback of this display unit moves the transfer action of the position piece conversion of controlling this left eye image data and these eye image data.
7. the equipment that shows 3-D cartoon in form as claimed in claim 1 also comprises:
One synchronous shutter viewer, it is left and right alternately to guide the image of this left eye image data and these eye image data to mirror beholder's images of left and right eyes.
8. the equipment that shows 3-D cartoon in form as claimed in claim 1, wherein the outer buffer of this screen display buffer and these screens is the different memory areas piece in the storage device.
9. a method that shows 3-D cartoon in form is imposed in one and has in the computer system of display unit, comprises:
Store view data one of buffer outside two screens of present frame, and the view data of next frame in preparing another of buffer outside these screens, wherein the outer buffer of these screens is taked double-damping structure, and this view data comprises desires Alternation Display left eye image data and eye image data one of in a form; And,
Mode with position piece conversion is alternately transferred to this left eye image data in the view data of this present frame and this eye image data in this screen display buffer by one of outer buffer of these screens, with as viewing window pictures data stored in this screen display buffer.
10. the method that shows 3-D cartoon in form as claimed in claim 9 also comprises:
The transfer action of the position piece conversion of carrying out this left eye image data and these eye image data is moved in the vertical flyback of considering this display unit.
11. the method that in form, shows 3-D cartoon as claimed in claim 9, control by a three-dimensional form controller wherein which stores the view data of this present frame in the outer buffer of these screens, and the transfer action of the position piece conversion of this left eye image data and these eye image data.
12. the method that in form, shows 3-D cartoon as claimed in claim 11, wherein should solid form controller whether be ready to complete, control which stores the view data of this present frame in the outer buffer of these screens according to this left eye image data and this eye image data of this next frame.
13. the method that shows 3-D cartoon in form as claimed in claim 9 also comprises:
Is a left eye image data and eye image data with a 3D plotting unit with the 3D data processing of this next frame.
14. the method that shows 3-D cartoon in form as claimed in claim 9 also comprises:
When this next frame view data disposes, this next frame that disposes is set at this present frame, and to set a new desire processed frame be this next frame.
15. the method that shows 3-D cartoon in form as claimed in claim 9 also comprises:
Alternately guide the image of this left eye image data and these eye image data to mirror beholder's images of left and right eyes with a synchronous shutter viewer.
16. a display card, it is used in and shows 3-D cartoon in the form, and is implemented on one and has in the computer system of display unit, comprises:
One screen display buffer, its storage are presented at screen-picture data of this display unit, and these screen-picture data comprise the viewing window pictures data;
Take the outer buffer of two screens of double-damping structure, a view data that stores present frame of the outer buffer of these screens, another of the outer buffer of these screens then stores the view data of the next frame in the preparation, wherein the view data of the view data of this present frame and this next frame comprises left eye image data and eye image data respectively, and this left eye image data in the view data of this present frame and this eye image data are alternately transferred in this screen display buffer by one of outer buffer of these screens in the mode of position piece conversion, with as these viewing window pictures data;
One 3D plotting unit, it prepares this left eye image data and this eye image data of this next frame;
One Memory Controller, it carries out the transfer action of the position piece conversion of this left eye image data and these eye image data; And
One three-dimensional form controller, it is controlled, and which stores the view data of this present frame in the outer buffer of these screens, and the transfer action of the position piece conversion of this left eye image data and these eye image data, and judge according to the signal of this 3D plotting unit whether this left eye image data of this next frame and this eye image data are ready to complete.
17. display card as claimed in claim 16 wherein should solid form controller considers also that the vertical flyback of this display unit moves the transfer action of the position piece conversion of controlling this left eye image data and these eye image data.
18. display card as claimed in claim 16, wherein the outer buffer of this screen display buffer and these screens is the different memory areas piece in the storage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01137128 CN1414794A (en) | 2001-10-22 | 2001-10-22 | Equipment and method of displaying stereo cartoon in viewing window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01137128 CN1414794A (en) | 2001-10-22 | 2001-10-22 | Equipment and method of displaying stereo cartoon in viewing window |
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| CN1414794A true CN1414794A (en) | 2003-04-30 |
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| CN 01137128 Pending CN1414794A (en) | 2001-10-22 | 2001-10-22 | Equipment and method of displaying stereo cartoon in viewing window |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007016839A1 (en) * | 2005-08-09 | 2007-02-15 | Huawei Technologies Co., Ltd. | Method and system for carrying out hierarchical virtual private switch services |
| CN101945298A (en) * | 2009-07-07 | 2011-01-12 | 索尼公司 | Video display apparatus and system |
| CN102006489A (en) * | 2009-08-27 | 2011-04-06 | 晨星软件研发(深圳)有限公司 | Frame rate conversion apparatus for 3d display and associated method |
| WO2012068742A1 (en) * | 2010-11-26 | 2012-05-31 | Mediatek Singapore Pte. Ltd. | Method for performing video display control within a video display system, and associated video processing circuit and video display system |
| CN103024452A (en) * | 2012-12-21 | 2013-04-03 | 北京牡丹电子集团有限责任公司数字电视技术中心 | Method and system for multiplexing 3D (three-dimensional) television programs |
| CN104717484A (en) * | 2010-11-26 | 2015-06-17 | 联发科技（新加坡）私人有限公司 | Video display control method, video processing circuit and video display device |
| TWI489856B (en) * | 2012-09-03 | 2015-06-21 | Dimensional image processing method |
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2001
- 2001-10-22 CN CN 01137128 patent/CN1414794A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007016839A1 (en) * | 2005-08-09 | 2007-02-15 | Huawei Technologies Co., Ltd. | Method and system for carrying out hierarchical virtual private switch services |
| CN101945298B (en) * | 2009-07-07 | 2013-06-19 | 索尼公司 | Video display device and system |
| CN101945298A (en) * | 2009-07-07 | 2011-01-12 | 索尼公司 | Video display apparatus and system |
| CN102006489A (en) * | 2009-08-27 | 2011-04-06 | 晨星软件研发(深圳)有限公司 | Frame rate conversion apparatus for 3d display and associated method |
| CN102006489B (en) * | 2009-08-27 | 2015-02-04 | 晨星软件研发(深圳)有限公司 | Frame rate conversion apparatus for 3D display and associated method |
| WO2012068742A1 (en) * | 2010-11-26 | 2012-05-31 | Mediatek Singapore Pte. Ltd. | Method for performing video display control within a video display system, and associated video processing circuit and video display system |
| US8786674B2 (en) | 2010-11-26 | 2014-07-22 | Mediatek Singapore Pte. Ltd. | Method for performing video display control within a video display system, and associated video processing circuit and video display system |
| CN102741917A (en) * | 2010-11-26 | 2012-10-17 | 联发科技（新加坡）私人有限公司 | Method for performing video display control within a video display system, and associated video processing circuit and video display system |
| CN102741917B (en) * | 2010-11-26 | 2015-04-22 | 联发科技（新加坡）私人有限公司 | Method for performing video display control within a video display system, and associated video processing circuit and video display system |
| CN104717484A (en) * | 2010-11-26 | 2015-06-17 | 联发科技（新加坡）私人有限公司 | Video display control method, video processing circuit and video display device |
| CN104717484B (en) * | 2010-11-26 | 2017-06-09 | 联发科技（新加坡）私人有限公司 | Carry out method, video processing circuits and the video display system of video display control |
| TWI489856B (en) * | 2012-09-03 | 2015-06-21 | Dimensional image processing method | |
| CN103024452A (en) * | 2012-12-21 | 2013-04-03 | 北京牡丹电子集团有限责任公司数字电视技术中心 | Method and system for multiplexing 3D (three-dimensional) television programs |
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