Motive vector prediction method in the video code

A technology of motion vector and prediction method, which is applied in the field of video coding, can solve the problems of low efficiency of motion vector prediction and achieve high efficiency
CN101018338AActive Publication Date: 2007-08-15广州市云动力科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
广州市云动力科技有限公司
Publication Date
2007-08-15

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Abstract

The related prediction method for motion vector in video coding comprises: obtaining every macro-block motion vector in reference frame and thereby the motion trajectory of every macro-block from reference to current frame; with linear averaging algorithm and linear approximation algorithm, calculating in turns the match block in the reference frame, and obtaining the motion vector for every macro-block. This invention is high efficient and accurate.
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Description

technical field

[0001] The invention relates to the field of video coding, in particular to a method for predicting motion vectors of B frames or P frames in video coding. Background technique

[0002] For digital TV, new generation mobile communication, broadband network communication and household consumer electronics, which are booming high-tech industry groups, their common technologies focus on multimedia information processing technology with video and audio as the main content, especially data compression technology. High-efficiency video coding technology is the key to realize high-quality, low-cost multimedia data storage and transmission. Currently commonly used encodings include Mpeg 2 / Mpeg 4 / H.264, etc. The encoding technologies used mainly include predictive encoding, transform encoding, vector quantization encoding, etc. These video encoding standards and related technologies have been widely used in the industry.

[0003] These video coding standards all adop...

Claims

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