Codec representation of history-based motion vector prediction table

By constructing and using a video processing method based on history motion vector predictor (HMVP) table, the problem of large bandwidth usage of existing video compression technology is solved, and efficient video encoding and decoding is achieved.

CN114287130BActive Publication Date: 2025-03-25DOUYIN VISION CO LTD +1
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Patent Information

Application Number
CN202080060088.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-08-24
Filing Date
2020-08-24
Publication Date
2025-03-25
Estimated Expiration
2040-08-24

AI Technical Summary

Technical Problem

Existing video compression technology occupies a large bandwidth in the Internet and digital communication networks, and bandwidth demand will continue to grow as the number of devices increases.

Method used

Using the video processing method based on history motion vector predictor (HMVP) table, the video block encoding and decoding are realized by constructing and using the HMVP table to improve the encoding and decoding efficiency.

Benefits of technology

It effectively reduces the storage and transmission bandwidth of video data, improves the efficiency of video encoding and decoding, and is suitable for existing video encoding and decoding standards and future standards.

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Abstract

A video processing method is described. The video processing method includes: for a conversion between a current video block of a current picture of a video and a codec representation of the video, constructing a history-based motion vector predictor (HMVP) table according to a rule, and performing the conversion using the HMVP table, wherein the current video block is encoded and decoded with the codec representation using a block vector representing a displacement between the current video block and a region in the current picture used to predict the current video block; wherein the rule specifies that the constructing uses block vector information of a previously processed video block in the HMVP table.
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