Method and its device for forming moving vector prediction in video image

Abstract

This invention discloses a method generated by a motion vector prediction in a video image and a device. A master module looks up the list based on the current macroblock to acquire relates integral control words, fetches the corresponding sub-block control words, carries out null domain preprocess based on the content of the control words to device the predicted MV number of the current block or generates MV adopting the mode of storing copy, if vector offset exists, then summing operation is done. If the current sub-block is the last of the macroblock, then the macroblock MV generation is ended, if not, the next sub-block is re-fetched.

Description

technical field [0001] The present invention relates to a method and device for predicting and generating motion vectors in video decoding in the field of digital video encoding / decoding technology, especially for inter-frame coded motion vectors during video decoding, using a regular and concise hardware structure to realize its prediction Generated method and device thereof. Background technique [0002] Digital TV, new generation mobile communication, broadband network communication, household consumer electronics and other high-tech industrial groups have common technologies that focus on multimedia information processing technology with video and audio as the main content, especially data compression technology, efficient video codec Technology is the key to high-quality, low-cost multimedia data storage and transmission. [0003] In the whole video coding, most of the coding efficiency comes from the inter prediction using the prediction module to resolve the temporal...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to propose a method and device for predicting and generating motion vectors in video images to solve the problem of complex MV generation caused by various types of macroblocks and variable block sizes. problem, making the generation process of motion vector prediction simple, the control logic clear, the structure simple, and easy to realize by software and hardware

[0011] Another technical problem to be solved by the present invention is to propose a device for predicting and generating motion vectors in video images in view of the deficiencies of the prior art, which is used to solve the problems of multiple motion vector prediction generation modes, complex control and irregular structure in the prior art. , the relationship between adjacent states is complicated, which is not conducive to hardware implementation and difficult to expand

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