DVD coding method and coder

Abstract

A H.264 coding method used in DVD includes: dividing a current frame Fn into macroblocks having two modes of internal frame and interframe, in which, said internal frame mode uses the coded macroblocks in the current frame to forecast, the interframe mode uses one or more frames as the reference to carry motion forecast to evaluate ME and motion compesation MC by motion shift, then carrying out transformation T, quantization Q, re-arranged and entropy coding to the difference of the forecast value and the original value and the quantization coefficient X is inverse quantized and inverse transformed T-1 and added with the forecast coefficient to get an un-filtered uFí» frame to be filtered among blocks to get the current restructured frameFní». This invention also discloses a H.264 coder for realizing said method.

Description

Technical field [0001] The present invention relates to video compression decoding technology, in particular to a video compression coding method and device for a DVD high-definition decoder board. Background technique [0002] Digital video technology has been widely used in the fields of communication and audio-visual. Especially since the 1990s, with the rapid development of the Internet and mobile communications, the processing and transmission technology of video information and multimedia information in the Internet and mobile networks has become The current hot spots in my country's informatization. [0003] As we all know, video information has a series of advantages, such as intuitiveness, certainty, efficiency, and versatility. However, the amount of video coding information is too large. In order for the video to be effectively used, the problem of video compression coding must be solved first, and the problem of video quality assurance after compression must be solved...

AI Technical Summary

Problems solved by technology

Since CCITT announced the first international video coding standard in 1984, in the past 21 years, ITU-T and other international standardization organizations have promulgated nearly 10 video coding international standards, which greatly promoted the development of video communication and audio-visual technology. But strictly speaking, the development of the two major fields of video communication and audio-visual is not satisfactory so far. Generally speaking, the scope of application is not wide, mainly because the contradiction between video compression and quality cannot be well resolved.

For example: videophone has always been considered as an ideal communication device, but it has not been popularized in the past 30 years, because the performance-price ratio is not high

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