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Decoding method, program for decoding method, recording media with recorded program for decoding method, and decoding device

A decoding method and encoding technology, which is applied in code conversion, television, electrical components, etc., can solve the problems that the decoding processing speed cannot be improved, and achieve the effect of high-speed decoding processing

Inactive Publication Date: 2009-07-29
SONY CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After all, there is still the problem of not being able to increase the speed of the decoding process

Method used

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  • Decoding method, program for decoding method, recording media with recorded program for decoding method, and decoding device
  • Decoding method, program for decoding method, recording media with recorded program for decoding method, and decoding device
  • Decoding method, program for decoding method, recording media with recorded program for decoding method, and decoding device

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no. 1 approach

[0088] (1-1) Configuration of the embodiment

[0089] FIG. 18 is a block diagram showing a decoding apparatus of the first embodiment of the present invention. The decoding apparatus 1 decodes the coefficient data in each encoding processing unit from the input bitstream bitstream based on the ITU-T H.264 method and input in a sequential manner by CAVLC processing. In the decoding apparatus 1, in addition to the processing of run before, the processing of each syntax element used for decoding the coefficient data is the same as using Figure 5 and Image 6 The described known decoding device performs in the same way. The decoding apparatus 1 performs inverse quantization and inverse DCT processing on the decoded coefficient data in the inverse quantization and inverse DCT section 2, and then performs inverse quantization and inverse DCT processing on the decoded coefficient data, and then combines the unshown intra prediction section with inter prediction The predicted value...

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Abstract

A decoder is applied to an ITU-T H. 264 decoder, for example, detects continuous numbers of a particular value syntax element such as 0, etc. and decodes this syntax element on the basis of this detected result.

Description

technical field [0001] The present invention relates to a decoding method, a program for the decoding method, a recording medium on which the program for the decoding method is recorded, and a decoding apparatus, and is applicable to, for example, a decoder based on the ITU (International Telecommunication Union)-T H.264 method and the like. Compared to the prior art, the present invention increases the speed of the decoding process by detecting the consecutive number of syntax elements of a specific value (such as a value of 0) and decoding the syntax elements based on the detection results. Background technique [0002] Generally, in encoding processes such as MPEG (Moving Picture Experts Group)-2 and MPEG-4, orthogonal transform processing is performed on image data in predetermined encoding processing units, and variable-length encoding is performed on resultant coefficient data deal with. Further, in the variable-length encoding process, variable-length encoded data is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M7/30H04N7/30H04N19/102H04N19/136H04N19/189H04N19/44H04N19/60H04N19/625H04N19/91H04N19/93
CPCH04N19/00478H04N7/26702H04N19/00533H04N19/00884H04N19/00951H04N7/26106H04N7/26335H04N7/26946H04N19/42H04N19/44H04N19/70H04N19/91H04N19/60
Inventor 重本大乗宫崎雅
Owner SONY CORP
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