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Method for judging macro block type in video coding technology

A video coding and macroblock technology, applied in the field of video coding, can solve the problem of "smearing" and other problems.

Active Publication Date: 2014-02-05
ANHUI CREARO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once it is judged as an interframe coding type, it is easy to produce a "smearing" effect

Method used

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  • Method for judging macro block type in video coding technology
  • Method for judging macro block type in video coding technology
  • Method for judging macro block type in video coding technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] A method for judging a macroblock type in a video coding technique, comprising the following steps:

[0022] (1) Perform video compression in accordance with the MPEG4 standard. When encoding the inter-frame prediction frame by macroblock one by one, follow the usual method of the general compression standard MPEG4 (for specific methods, please refer to the document ISO / IEC JTC1 / SC29 / WG11N3908MPEG-4Video Verification Model Section 18.11.1 INTRA / INTER mode decision in version18.0) to determine whether the macroblock type is an intra-predicted macroblock or an inter-frame predicted macroblock. If it is judged to be an intra-predicted macroblock, it will be encoded according to the follow-up method of the MPEG4 compression standard. Can;

[0023] (2), if the macroblock type is judged to be an inter-prediction macroblock according to the usual way of the general compression standard MPEG4, use - 1 ...

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Abstract

The invention discloses a method for judging the macro block type in the video coding technology. Specifically, the method comprises the following steps of: a, when coding a special macro block of an inter prediction frame, if the prediction is judged to be the intra prediction, processing in an ordinary pattern; b, if the prediction is judged to be the inter prediction, further performing secondary type judging according to the result of operations, such as convolution and summation on the macro block and a special type operator; c, based on the result of the secondary type judging, performing subsequent coding on the macro block according to the ordinary pattern. The method can effectively suppress a 'smearing effect' without increasing the code rate in the applications like the road monitoring.

Description

technical field [0001] The invention relates to the field of video coding, in particular to a method for judging the macroblock type in the video coding technology. Background technique [0002] Video coding technology has developed rapidly in the past two decades, and a large number of international standards for video coding have come out, such as: H.261, H.263, MPEG1, MPEG2, etc. Especially in recent years, the rapid promotion of MPEG4 and H.264 encoding standards has greatly promoted the application and popularization of network video products. [0003] In network-based video surveillance applications, video coding technology also has a wide range of applications. Since MPEG4, H.264 and other encoding technologies are all oriented to general video compression requirements, in specific applications of video surveillance, the optimal compression effect cannot be achieved in some scenarios. For example, in the road monitoring application, it is a fixed road monitoring sce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/159
Inventor 何佳王小敏王大勇尼秀明
Owner ANHUI CREARO TECH