Video image prediction method and device

A technology of video image and prediction method, which is applied in the field of image coding and decoding, and can solve the problem of lengthening of coded video sequences, etc.
CN110868587APending Publication Date: 2020-03-06HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2020-03-06

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Abstract

The invention provides a video image prediction method and a video image prediction device, which are used for solving the problem that the length of a coded video sequence is increased in the prior art. Some video images do not have affine characteristics; some video images are not all stripes and have affine characteristics, therefore, a first identifier and / or a second identifier can be added in the code stream, the first identifier is used for indicating whether the video image can adopt the inter-frame prediction mode of the affine motion model, and the second identifier is used for indicating whether the strip in the video image can adopt the inter-frame prediction mode of the affine motion model. For video images or image blocks included in stripes that do not require an affine motion model, transmission of parameters related to the affine motion model for the image blocks may not be required. On the decoding side, when the image block is decoded, parameters related to the affine motion model do not need to be analyzed, the load of a decoder can be reduced, the processing speed can be increased, and the processing time can be shortened.
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Description

technical field

[0001] The present application relates to the technical field of image encoding and decoding, and in particular to an image prediction method and device. Background technique

[0002] With the development of information technology, high-definition television, web conferencing, IPTV, 3D television and other video services are developing rapidly, and video signals have become the most important way for people to obtain information in their daily lives due to their advantages of intuition and efficiency. Because the video signal contains a large amount of data, it needs to occupy a large amount of transmission bandwidth and storage space. In order to effectively transmit and store video signals, it is necessary to compress and encode video signals, and video compression technology has increasingly become an indispensable key technology in the field of video applications.

[0003] The basic principle of video coding and compression is to use the correlation betw...

Claims

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