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Method of three dimensional video image signal compression

A technology for compressing stereoscopic video images and signals, applied in image communication, stereoscopic systems, electrical components, etc., can solve unrealistic problems and achieve the effect of reducing production costs

Inactive Publication Date: 2004-11-10
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Today, with plane video images as the main body, it is unrealistic to reconstruct a new software and hardware platform dedicated to stereoscopic video images

Method used

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  • Method of three dimensional video image signal compression
  • Method of three dimensional video image signal compression
  • Method of three dimensional video image signal compression

Examples

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Effect test

Embodiment 1

[0064] Embodiment 1 Compression of static stereo images

[0065] The present invention is suitable for the compression coding of static three-dimensional image, is suitable for all static image compression standards, for example the static image of format such as JPEG, PCX, GIF, TIFF, the image after compression can be decompressed by general planar image decompression method, obtains Flat image. The compressed image can be decompressed by the corresponding decompression encoding process of the present invention to obtain a stereoscopic image.

[0066] Take the splicing and compression process of static stereo images in JPEG format with 800×600 pixels as an example.

[0067] Using the coding scheme shown in Figure 2, the mixed coded value is obtained, and then, according to 8×8 blocks, it is based on discrete cosine transform (DCT), quantization, and entropy coding. In order to meet the distortion-free operation mode, the predictive coding method of DPCM can be used instead ...

Embodiment 2

[0115] Embodiment 2 Compression of dynamic stereo images

[0116] The present invention is suitable for compression coding of dynamic stereoscopic images, suitable for all dynamic image compression standards, such as video images in formats such as MPEG, H.261, H.263, and compressed images can be decompressed by a general planar video image decompression method Compress to get a flat video image. The compressed image can be decompressed by the corresponding decompression encoding process of the present invention to obtain a stereoscopic video image.

[0117] Take the random compression process of video stereo images in MPEG-4 format with 352×244 pixels as an example.

[0118] Using the coding scheme shown in Figure 2, the mixed coded value is obtained, and then, according to 8×8 blocks, it is based on discrete cosine transform (DCT), quantization, and entropy coding. In order to meet the distortion-free operation mode, the predictive coding method of DPCM can be used instead...

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Abstract

The invention discloses a solid video image signal compressing method, adopting the images coming from the left and right viewpoints, where one viewpoint's data act as independent image and the other viewpoint's data act as reference image, to code, combining the independent video image data with the solid image redundant data to compose the complete data existing in frame data form for mixed coding; using the solid image decoding program to decompress the image data after mixed coding in order to recover the solid video images. After images are decompressed, it can display them in different modes according to user's selection. It can obtain plane or solid video images by ordinary plane display or different types of solid displays.

Description

technical field [0001] The invention relates to a method for compressing video image signals, in particular to a method for compressing stereoscopic video image signals, and belongs to the technical field of image compression. Background technique [0002] The three-dimensional image completely reproduces the three-dimensional information of the scene, and displays an image with a sense of depth, just like watching a three-dimensional movie. visual impact. [0003] It has always been the pursuit of human beings in image technology to three-dimensionally reproduce the natural three-dimensional space scene. Since the beginning of the last century (20th century), the scientific and technological circles have just started the research on stereoscopic image technology, and have made certain progress. [0004] Due to historical reasons, the current popular image technology system is based on flat images. For example, the recording, dissemination and display of TV image signals,...

Claims

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Application Information

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IPC IPC(8): H04N13/00
Inventor 王元庆
Owner NANJING UNIV
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