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Method for determining enhanced layer in-frame prediction mode and encoding and decoding apparatus

A technology of intra-frame prediction mode and prediction mode, which is applied in television, electrical components, image communication, etc., can solve the problems of multiple codewords and occupying video system transmission resources, etc., and achieves improved compression efficiency, improved transmission efficiency, and flexible methods Effect

Inactive Publication Date: 2009-06-24
SNAPTRACK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When encoding these prediction mode information, more codewords need to be used, so that the transmission of prediction mode information between the encoding end and the decoding end also occupies the transmission resources of the video system

Method used

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  • Method for determining enhanced layer in-frame prediction mode and encoding and decoding apparatus
  • Method for determining enhanced layer in-frame prediction mode and encoding and decoding apparatus
  • Method for determining enhanced layer in-frame prediction mode and encoding and decoding apparatus

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Embodiment Construction

[0051] If the encoding end does not encode the prediction mode information it adopts, but both the encoding end and the decoding end can adaptively determine the prediction mode of the current macroblock or block in the enhancement layer, it is possible to avoid encoding the prediction mode information at the encoding end. The transmission of the information encoding and the decoding process of the prediction mode information encoding at the decoding end can improve the compression efficiency of INTRA frames or macroblocks and improve the transmission efficiency of video information.

[0052] Therefore, the core of the method of the present invention and the module for determining the intra-frame prediction mode of the enhancement layer set in the codec device are: to adaptively determine the current macroblock or block based on the information of the low-layer macroblock or block corresponding to the current macroblock or block of the enhancement layer The block or block's predi...

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Abstract

The present invention provides a method for determining the intra-frame prediction mode of the enhancement layer and a codec device. The core of the method and the module for determining the intra-frame prediction mode of the enhancement layer set in the codec device are: through the current macroblock or block corresponding to the enhancement layer The information of the low-layer macroblock or block is used to adaptively determine the prediction mode of the current macroblock or block. The present invention enables both the encoding end and the decoding end to adaptively determine the prediction mode of the current macroblock or block of the enhancement layer, avoiding the encoding process of the encoding end on the prediction mode information of the current macroblock or block of the enhancement layer, and avoiding The prediction mode information is transmitted between the end and the decoding end; thereby achieving the purpose of improving compression efficiency and improving transmission efficiency.

Description

technical field [0001] The invention relates to video processing technology in the field of multimedia communication, in particular to video coding and compression technology. Background technique [0002] With the development of multimedia technology and the rapid promotion of multimedia applications, video image compression standards and technologies have received widespread attention, especially the two standard organizations jointly formed by MPEG (Moving Picture Experts Group) and ITU (International Telecommunication Union). H.264, formulated by JVT, the standard formulation working group, has been applied in conference TV, videophone, streaming media, HD DVD, video surveillance, digital TV, 3G and other fields due to its advanced technical features and good compression performance. , and has broad application prospects. [0003] H.264 compression processing framework such as figure 1 As shown, its basic processing unit is a 16×16 macroblock. H.264 adopts advanced te...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/32H04N19/593
Inventor 熊联欢
Owner SNAPTRACK