Video image encoding and decoding method, encoding device, and decoding device

A video image and image block technology, which is applied in the fields of video image encoding and decoding, encoding equipment and decoding equipment, and can solve problems such as reducing encoding and decoding performance and high encoding and decoding complexity.

Active Publication Date: 2018-12-14
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the size of the sub-image block in the related art is fixed, too small a sub-image block will lead to higher encoding and decoding complexity, and too large a sub-image block will reduce the encoding and decoding performance

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  • Video image encoding and decoding method, encoding device, and decoding device
  • Video image encoding and decoding method, encoding device, and decoding device
  • Video image encoding and decoding method, encoding device, and decoding device

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Embodiment Construction

[0117] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0118] figure 1 A schematic flowchart of a video image encoding method according to an embodiment of the present invention is shown. figure 1 The shown method may be performed by an encoding device, such as an encoder, specifically, as figure 1As shown, method 1000 includes:

[0119] S1100, determining a motion vector difference of an affine image block;

[0120] S1200. Determine the motion vector accuracy of the affine image block;

[0121] S...

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Abstract

The invention provides a video image encoding and decoding method, an encoding device and a decoding device. The method comprises the following steps of: determining a motion vector difference of affine image blocks; determining a motion vector accuracy of the affine image block; determining a size of an affine motion compensation sub-image block in the affine image block according to the motion vector difference, the motion vector accuracy and a distance between control points in the affine image block, the control points being pixel points for determining the motion vector difference; according to the size of the affine motion compensation sub-image block, encoding the affine image block. Thus, the coding complexity can be reduced and the coding performance can be improved by selecting asub-image block with an appropriate size.

Description

technical field [0001] The present invention relates to the field of video image processing, in particular to a video image encoding and decoding method, encoding device and decoding device. Background technique [0002] With the rapid development of Internet technology and the increasingly rich material and spiritual culture of people, there are more and more requirements for video applications on the Internet, especially for high-definition video applications, and the data volume of high-definition video is very large. To be able to transmit in the Internet with limited bandwidth, the problem that must be solved first is the problem of high-definition video compression and encoding. Currently, there are two international organizations dedicated to the formulation of video coding standards, namely the International Organization for Standardization (ISO) / International Electrotechnical Commission (IEC) The Motion Picture Experts Group (Motion Picture Experts Group, referred ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/119H04N19/139H04N19/176H04N19/196H04N19/513H04N19/52H04N19/53H04N19/54
CPCH04N19/52H04N19/139H04N19/176H04N19/119H04N19/196H04N19/82H04N19/53H04N19/54H04N19/521H04N19/172H04N19/50H04N19/513H04N19/57H04N19/573G06T7/20G06T9/00
Inventor 张红杨海涛
Owner HUAWEI TECH CO LTD
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