System for encoding and decoding texture self-adaption video

A video encoding and decoding technology, applied in the field of texture adaptive video encoding and decoding systems

Active Publication Date: 2008-12-17
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Texture Adaptive Video Codec System includes Texture Adaptive Video Coding System and Texture Adaptive Video Decoding System

Method used

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  • System for encoding and decoding texture self-adaption video
  • System for encoding and decoding texture self-adaption video
  • System for encoding and decoding texture self-adaption video

Examples

Experimental program
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Effect test

example 1

[0124] Example 1: The code stream contains the texture feature information of the decoding unit, and the input signal of the texture analyzer at the decoding end is the texture feature information of the decoding block obtained by the entropy decoding module through code stream analysis or a coded form of the texture feature information of the decoding block. This information is input to the texture analyzer at the decoding end, and the texture analyzer at the decoding end directly uses or decodes the information to obtain texture feature information of the decoding block.

example 2

[0125] Example 2: The input signal of the texture analyzer at the decoding end is the intra prediction mode of the current decoding block output by the intra prediction module. The texture analyzer at the decoding end determines the texture feature information of the decoding block according to the method exemplified in H-3.

[0126] Example 3: The input signal is the inter prediction mode information of the decoding unit above and to the left of the current decoding unit output by the inter prediction module. The texture analyzer at the decoding end determines the texture feature information of the decoding block according to the method exemplified in H-3.

[0127] J. An example of adapting the working mode of the encoding function module and the decoding function module to the texture feature

[0128] J1, texture adaptive interpolation module

[0129] Figure 8 Schematic diagram of foot texture adaptive interpolation module. The texture analyzer at the coding end extract...

Embodiment 1

[0141] Figure 13 is a schematic diagram of implementation example 1, which is a texture adaptive video coding system. The input signal of the texture analyzer at the coding end is the reference image data of the coding unit, as described in F-2, and the output information is the texture direction information of the coding unit, and the method of extracting the texture direction information is as exemplified in H-2. The output texture direction information controls the working mode of the texture adaptive interpolation module in the video encoder, so that the texture adaptive interpolation module selects an appropriate interpolation working mode according to the texture direction information by the method exemplified in J-1. Other encoding functional modules in the video encoder do not perform self-adaptation according to texture feature information.

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PUM

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Abstract

The invention claims a texture self-adapted video coding system, a texture self-adapted video decoding system and a texture self-adapted video coding and decoding system. The texture self-adapted video coding system includes a video coder and a coding end texture analyzer. The texture self-adapted video decoding system includes a video decoder and a decoding end texture analyzer. The texture self-adapted video coding and decoding system includes a texture self-adapted video coding system and a texture self-adapted decoding system. The texture self-adapted video coding and decoding system brings the texture feature information of video image into the video coding and decoding system to improve the compression efficiency and perceived quality of video coding.

Description

technical field [0001] The present invention relates to the field of signal processing and communication, in particular to a texture adaptive video encoding system, a texture adaptive video decoding system and a texture adaptive video encoding and decoding system. Background technique [0002] Current video codec standards, such as H.261, H.263, H.26L developed by ITU and MPEG-1, MPEG-2, MPEG-4 developed by ISO's MPEG organization, and H.264 / MPEG- Both AVC (H.264 for short) and the second part of China's independent intellectual property video coding standard AVS are based on the traditional hybrid video codec framework. [0003] An important purpose of video coding is to compress the video signal to reduce the data volume of the video signal, thereby saving the storage space and transmission bandwidth of the video signal. On the one hand, the original video signal has a huge amount of data, which is the necessity of video coding and compression; on the other hand, there is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/40H04N7/44H04N7/32H04N7/50H04N21/234H04N21/4402
Inventor 虞露武晓阳
Owner ZHEJIANG UNIV
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