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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.

Pending Publication Date: 2020-03-06
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a video image prediction method and device to solve the problem of lengthening of the encoded video sequence existing in the prior art

Method used

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  • Video image prediction method and device
  • Video image prediction method and device
  • Video image prediction method and device

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Embodiment Construction

[0126] The video image prediction solution provided by the embodiments of the present application may be applied to encoding or decoding of video images. figure 1 It is a schematic block diagram of the video encoding and decoding system 10 in the embodiment of the present application. like figure 1 As shown, the system 10 includes a source device 11 and a destination device 12. The source device 11 generates coded video data and sends it to the destination device 12. The destination device 12 is used to receive the coded video data, decode and display the coded video data. Source device 11 and destination device 12 may comprise any of a wide range of devices, including desktop computers, notebook computers, tablet computers, set-top boxes, telephone handsets such as so-called "smart" phones, so-called "smart" Touch panels, TVs, video cameras, display devices, digital media players, video game consoles, video streaming devices, and more.

[0127] The intra-mode prediction sch...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/103H04N19/139H04N19/149H04N19/159
CPCH04N19/103H04N19/139H04N19/149H04N19/159H04N19/54H04N19/176H04N19/105H04N19/70H04N19/174H04N19/527H04N19/184H04N19/46H04N19/513
Inventor 陈焕浜马祥杨海涛陈建乐
Owner HUAWEI TECH CO LTD
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