TW525376B - Digital encoding method of 3D video image - Google Patents

Abstract

A digital encoding method of 3D video image is disclosed, whose purpose is to solve the problem that the stereo 3D image may be damaged in the compression/decompression process. Also, the present invention provides the possibility to increase the playing frequency to be above 120 Hz to solve the flicker problem of frame. The method is: the general/traditional stereoscopic interlaced video image is converted into above/below image by a specific software, so as to form an above/below video file in which the upper half portion is left (or right) eye image and the lower half portion is right (or left) eye image, and proceed digital image data compression by MPEG I/II (motion picture expert group I/II) into optical disc, the above/below video image file is outputted by the MPEG I/II player or MPEG I/II decoder to the stereo 3D image generator for processing. Users can watch the stereo 3D dynamic video image on the display after wearing the liquid crystal shutter glasses (LC shutter glasses).

Description

525376 V. Description of the invention (1) The present invention relates to a 3D full lion stereo VCD and DVD program when playing: two coding methods, especially one program. Bu Ding to watch the 3D stereo effect. In the past, people can use the 3D stereo catalogue to display the interlaced display of traditional TV.: ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, (,,,,,,,,,,,,,,,,,,,,,,,,,,,-,,,,,,,,,,,,,,,,,,,,, ',,,,,,,,,, The mode is to sequentially display the programs showing the first, third, and fifth fruits. The so-called (0dd) scan line, and then the cycle display of the odd (Even) scan lines of the second, fourth, sixth, and ^ in sequence. ，、 ··· Even even numbers (Interlaced Dlsplay Mod) are divided into two fields (Flelds) with one metalworking = wrong display mode, that is, odd scanning lines: (:,) is divided into fields or odd fields (Odd Fleld ) And even-numbered scanning lines ~ countable scanning lines to know the drawing field or even field (Even F 丨 e 丨 d). In the even-numbered formula, the three-dimensional imaging of the temple can be performed. = Apply in the picture field and the even picture field (or the reverse order), and then match with the "two images / knife left / right alternately obscured (such as the 3D stereoscopic vision of the" 3D stereo "limb glasses; so Send the left and right eye images to: eye; / shape is shown separately) w + right eye, faster than the person m ... heart / again, use to draw I can see more Stereo 3D images. Now, the frequency of switching the interlaced display (Vertical FreQuency4Refresh Rate) is better than 12〇 112 'Otherwise when viewing with LC Shutter Glasses "F 1 icker" phenomenon may occur. In addition, MPEG (Moving Picture Expert Group) is recently used in the multimedia field to store digital video festivals.) The speed is constantly changing, and the display is switched from time to time. I can clearly understand 525376

Moving books and sound input; Γ This digital storage technology is usually used in movies very fast. The ratio of compressible material is very high. The effect of decompressed moving image and sound 2 to Real Tlme, so p uses this compression technology (compression ratio is about 50: 1 to .1), Compressed in a 650MB VCD disc, you can play η minutes of video, or stored in a 4.7GB DVD disc, you can play 135 minutes of video. However, at present, 3D stereo animation images cannot be stored in V C D D V D like 2D images and reach a playback length of 74 minutes or 135 minutes. The main reasons are: VCD, DVD, MPEG I / Il (Motion Picture Expert

Group I / 11 is a digital image compression standard for moving image compression. However, the image compression of MPEG I / II is a destructive data compression. The so-called destructive compression also means that if VCD and DVD are interleaved (I nter 1 eaved ) Image format to display 3D stereo 'In the compression process, the data of the interleaved scan lines / fields (Fie Ids) will be destroyed during the compression process, that is, Stereo 3D video cannot be made Video playback; love is that the main purpose of the present invention is to solve the above-mentioned defects and avoid the existence of the defects; the present invention also re-processes the video image data of VCD, DVD · in advance, and arranges them in an interleaved (I nter eaved) manner Switch to separate top and bottom to avoid MPEG's destructive compression. Another object of the present invention is that the playback speed of the left and right eye images can be doubled from the original 60Hz to 120Hz so that there is no “FI icker” phenomenon when viewing with LC Shutter Glasses.

525376

/ In order to achieve the above purpose, the present invention converts the three-dimensional interlaced video images (Stereoscopic lnterlaced Vide) of VCD and DVD into specific images (Software) to convert the foregoing interlaced images into images with upper and lower split screens (Converts lnterlaced Vlde〇Image Int〇 Above / Below lmage) If the odd-numbered scan lines (representing the left-eye image) of the interlaced image are placed on the upper (or lower) side of the day, the even-numbered scan lines (representing the right-eye image) It is placed on the lower (or upper) side of the day surface, that is, a video image file (Above / Below) of the split screen with the upper half as the left (or right) eye image and the lower half as the right (or left) eye image Video File), and then use MPEG I— / II (Motion Plcture Expert Group Ⅰ / Π) to perform digital image data compression (Data Compression) into the disc, to form a dynamic image with upper and lower split screen, The video image files of the upper and lower split screens are output to a 3D stereo image and processed by an MPEG I / II player (MPEG Ⅰ / Π Piayer) or an mpeg I / ^ II decoder (MPEG I / II Decoder). After 're lose After going out to the display (Μ 〇 n ◦ ◦ r), users can wear 3D glasses (LC Shutter glasses) and watch 3D 3D dynamic video images. ^ The technical content and structure of the present invention will now be described in detail with reference to the drawings: 'Please refer to "shown in Figure 1", which is a schematic diagram of the present invention. As shown in the figure: The digital encoding method of 3D video images of the present invention is mainly for 3D stereo VCD and DVD programs, and people can watch 3D stereoscopic programs

Page 7 525376 Description of the invention (4) (Interleaved) three-dimensional image display, the main reason is that VCD, DVD is MPEG I / II (Motion Picture Expert Group I / II is the standard for moving image compression) digital image compression, but The image compression of MPEG 丨 / 丨 丨 is a destructive data compression. The so-called destructive compression also means that if a video image displays 3D stereo in an interleaved format, the interlaced (hteHeaved) The data of the adjacent field (Fie 1 ds) (representing the left and right eye images) of the scanning line will be destroyed. That is, 3D stereo (Stereo 〇3D) images cannot be played. Therefore, in order to solve the aforementioned problems, the Stereoscopic Interlaced Video 1 is converted into a shirt image with upper and lower split stem surfaces by specific software (Software) 2. Image Into

Above / Below Image) to form an Above / Below Video File (Above / Below Video File) of the split screen with the left (or right) eye image in the upper half and the right (or left) eye image in the lower half, and then With MPEG I / II (Motion

Picture Expert Group I / II) to perform digital image data compression (MPEG 1 / II Data Compression) 4 into disc 5 to form a day-to-day motion image disc with upper and lower divisions for playback via M p EG i / ii Software (MPEG 1 / II Decoder / Player) 6, and then processed by the Sync Doub 1 er 7, then it can be rotated to the monitor 8. At this time, liquid crystal stereo glasses (Liquid Crystal Shutter Glasses) 9 can watch 3D stereo image effects. Refer also to "shown in Figures 2 and 3", which is a schematic diagram of the 3D stereo image generator and timing of the present invention. As shown: in the above 2]) Digital signal source

525376 V. Description of the invention (5) (2D Digital Signal Source) 1 〇8 Digital Signal Selector (Digit Signal Selector) of this generator 1 〇9 Digital signal input to digital signal multiplier processing unit 1 1 0 Digital Signal Processor and Line Scan Doubler 1 1 1 and Time Base Corrector 1 1 2 Process the signal into 2D on the top and bottom of the full frame Digital signal (Above / Below 2D Digital Signal) 1 1 3 (as shown in the Above / Below waveform chart in Figure 3), the 2D digital signal on this upper and lower screen 1 1 3 is input to the synchronous multiplication processing unit 1 1 4 The 2D digital / analog converter (Above / Below 2D Digital to Analog Converter) 11 5 of the upper and lower screens of the synchronous frequency doubling processing unit 1 1 4 is converted into an 2D analog signal (Above / Below 2D Analog Signal) 1 1 6, and then through the Synchronizer Frequency 2D / 3D signal generator (Synchronizer Frequency Doubler & 2D to 3D Signal Converter) 1 1 7 and the second time base correction (Time Base

Corrector) 1 1 8 processing, which is also adding a vertical synchronization signal (Vert i cal Sync ·) A between the upper and lower day and day, to form the picture synchronization frequency multiplication processing (Sync · D 〇ub 1 ing) as shown in Figure 3. ) Waveform output (such as the original 6 0 Η z becomes 12〇 [^, or the original 6〇1 ^ 11163 becomes 120? ^ 11163), this 30 analog signal (3D Analog Signal) 1 1 9 on the display (Mon i tor) 8 Expand the left (or right) eye image first, and then expand the right (or left) eye image. In this way, continuously expand the left (or right) eye image and the right (or left) image to rotate. Alternately switch on the display, and then go through the Liquid Crystal Shutter Controller

525376 V. Description of the invention (6)) 1 0 2 'You can view 3D Stereo 3D video (such as Liquid Crystal in Figure 3) after you put on Liquid Crystal Shutter Glasses 9. Shutter Glasses or LC Shutter Glasses waveform). In addition, for non-digital signal images, the analog signal selector (Analog Signal Selector) 1 〇 4 selects 2D analog signal source composited image.

Video) 105 or 2D analog signal S-Video (2D Analog Signal Source S-Video) 1 〇6 input, after 21) analog / digital converter (2D Analog to Digital Converter) 1 〇7 into a After the digital signal of the divided image is processed by the 3 β stereo image generator described above, it can be displayed on the display (Monitor) 8 and then put on liquid crystal stereo glasses (Liquid Crystal = ass ^) After 9, you can watch the Stereo (Idere) video. The above mentioned. 1/10, set a clear confusion for a good reward to limit the implementation of the present invention, R, ϊ is not used, 粑 粑. That is to say, for all the equal changes and modifications made by the application of Zhencha 餻 Fla in accordance with the present invention, the stomach A is too private and straightforward: the second is called the Patent Enclosure, which is covered by the patent of Baimaben Maoming.

525376 Brief description of the drawings [Explanation of the drawings] Figure 1 is a schematic flow chart of a 3D stereo VCD and DVD processing method of the present invention. FIG. 2 is a schematic diagram of a 3D stereo image generator of the present invention. FIG. 3 is a timing diagram of 3D stereo video playback in the conventional and the present invention. [Illustration of Symbols] Stereo interlaced video image .............. 1 Specific software ......... 2 Video image files for upper and lower day ......... 3 Digital image data compression ... ..... 4 discs..... 5 MPEG I / Ι I playback software ........ ... 6 Day-Surface Synchronous Multiplier ... 7 Display ... .8 LCD Stereo Glasses ... 9 2D Digital Signal Source ......... 108 Digital Signal Selector ... ........... 109 Digital Signal Multiplier Processing Unit ......... 110 Digital Signal Processor and Line Scanning Multiplier ... 111 One-time base correction ............ 112 2D digital signal of upper and lower pictures ......... 113 Synchronous frequency multiplication processing unit ... ..... 114 2D digital / analog converter for upper and lower pictures ... 115

525376 The diagram briefly describes the 2D analog signal of the upper and lower pictures ......... 116 Synchronous frequency doubling 2D / 3D signal converter ......... 117 Second time base correction ... ........... 118

Vertical sync signal ... A 3D analog signal ... 119 LCD shading controller ... .... 102 analog signal selector .............. 104 2D analog signal source composite image ......... 105 2D analog Signal S image transmission end ......... 106 2 D analog / digital converter ......... 107

Page 12

Claims (1)

525376 6. Scope of applying for patents ... Heart 1. A 3D video image digital encoding VCD, DVD program spelled from 0 Shiba play date ^, people can, the digital encoding method includes: 3), stereo interlaced video image, wrong The image is converted into a video image file with upper and lower divisions and the upper half is the left (or right) eye image and the lower half is divided into the daytime surface; b). The data is compressed to the upper and lower segmented daytime motion images; c) the upper and lower segmented stereo image generators are read and played, and then the LC stereo shutter glasses (LC Shutter Giasses) state video image is played. 2. The method as described in item 1 of the scope of patent application, wherein the 3D stereoscopic image generation selector. 3. The method as described in item 1 of the scope of patent application, wherein the 3D stereoscopic image generates a frequency multiplier processing unit. 4. The method coded in item 3 of the scope of patent application, wherein the digital signal multiplier k-number processor and line-scanning multiplier and the first 2D digital signal method for forming an upper and lower day surface are mainly for the purpose of 3D stand-up viewing of 3D stereoscopic programs After specific software converts the aforementioned intersecting images, it forms a video image file with the right (or left) eye image in an MPEG film, which forms a picture with a picture. The video image file is in 3D. The user is on the display and can watch the 3D 3D video image after putting on the liquid. The 3D video image is digitally edited to include a 3D video image. The video image digital editing processing unit includes a digital time base correction process, that is, Page 13 525376 The 3D video image digital editing image generator described in item 1 further includes a picture synchronization after processing by this unit 'will change each playback to 120Hz (or the 3D video image described in item 5 above) The digital frequency coding processing unit includes an upper and lower written synchronous frequency doubling 2 D / 3 D or generator and an image converter of the first signal and the first signal of the product. You can watch it when you wear it. Scope 5, such as the patented range code method, where the 3D stereo doubler (Sync · Doubler), the fields (Fields) are changed from the original β〇Ηζ Frames to 120 Frames) [6, if the patented range code method, Among them, the 2 D digital / analog converter of the synchronization times, two time base corrections. 7. If the patent range code method is applied, where the 3D stereoscopic method is used, and if the patent range code method is used, the non-digital selection is input by the 2D analog signal source and the 2D analog // digital daytime image digital After the signal, after processing, it can be on the display or after the Shutter Glasses, that is, the 3D video image digital editor LCD shading controller. The 3D video image digitally edited image is converted into an upper and lower sub-dot by the analog signal selector or the 2D analog signal S image transmission wheel.] The liquid crystal stereo glasses (LC 3 D stereo dynamics) described in the 3D stereo image generator Video image. Page 14