Reinforced pixel domain code stream conversion method

A code stream conversion and pixel domain technology, applied in the field of enhanced pixel domain code stream conversion
CN1700771AActive Publication Date: 2005-11-23SHANGHAI GMT DIGITAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI GMT DIGITAL TECH
Publication Date
2005-11-23

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Abstract

This invention discloses one method to strengthen picture element area codes, which comprises the following steps: a, decoding the input codes of MPEG-2 input code flow; outputting decoding information besides the video data of YUV form; if each frame of image coding mode, each macro coding mode; then making full use of MPEG-2 decoding to get output information and re-coding the YUV form visual data for AVS data; finally coding, and considering the characteristics of MPEG-2 and AV codes with quality and speed.
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Description

technical field

[0001] The invention relates to the technical field of audio and video encoding and decoding in signal processing, in particular to an enhanced pixel domain code stream conversion method. Background technique

[0002] At present, digital TV program broadcasting (via satellite, cable or terrestrial wireless channel), digital video disc / high-definition digital video disc / enhanced universal disc (DVD / HD-DVD / EVD) publishing and digital video recorder (DV) are widely used. The source encoding standard is MPEG-2. MPEG-2 was a standard established ten years ago, and the formulation of these information source coding standards was based on the compression technology level and integrated circuit technology level at that time.

[0003] In recent years, a number of digital audio and video codec standards have emerged, the representative ones are the international standard MPEG-4, H.264 / MPEG-4 AVC, the standard AVS independently formulated by my country, and the WM9 lau...

Claims

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