Video image coding method, video image decoding method, coding device and decoding device

A video image and encoding technology, which is applied in the field of encoding equipment and decoding equipment, video image encoding and decoding, and can solve the problems of reducing encoding and decoding performance, high encoding and decoding complexity, etc.

Active Publication Date: 2017-01-04
HUAWEI TECH CO LTD
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  • Abstract
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  • 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 hi

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  • Video image coding method, video image decoding method, coding device and decoding device
  • Video image coding method, video image decoding method, coding device and decoding device
  • Video image coding method, video image decoding method, coding device and decoding device

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[0117] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

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

[0119] S1100: Determine the difference of the motion vector of the affine image block;

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

[012...

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Abstract

The invention provides a video image coding method, a video image decoding method, a coding device and a decoding device. The video image coding method comprises the steps of determining the motion vector difference of an affine image block; determining the motion vector precision of the affine image block; determining the size of an affine motion compensation sub-image block in the affine image block according to the motion vector difference, the motion vector precision and the distance between control points in the affine image block, wherein the control points are used for determining pixel points of the motion vector difference; and carrying out coding processing on the affine image block according to the size of the affine motion compensation sub-image block. Therefore, the video image coding method can reduce the coding complexity and improve the coding performance through selecting a sub-image block with an appropriate size.

Description

Technical field [0001] The present invention relates to the field of video image processing, and in particular to methods, encoding equipment and decoding equipment for video image encoding and decoding. Background technique [0002] With the rapid development of Internet technology and the increasing enrichment of people’s material and spiritual culture, there are more and more demand for video applications on the Internet, especially for high-definition video applications, and the amount of data in high-definition video is very large. To be able to transmit on the Internet with limited bandwidth, the first problem that must be solved is the problem of high-definition video compression coding. At present, there are two international organizations specializing in the development of video coding standards, namely the International Organization for Standardization (ISO") / International Electrotechnical Commission (International Electrotechnical Commission, "IEC"). The Video Coding ...

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Application Information

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IPC IPC(8): H04N19/51H04N19/137H04N19/117
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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