Decoding prediction method, device and computer storage medium

A prediction decoding and prediction model technology, applied in the field of video encoding and decoding, can solve the problems of unreasonable multiple adjacent reference pixels, high search complexity, and reduced video image decoding and prediction performance.

Active Publication Date: 2021-09-14
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when constructing a linear model, multiple adjacent reference pixels constructed from adjacent reference pixels are unreasonable, resulting in high search complexity and reduced decoding prediction performance of video images

Method used

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  • Decoding prediction method, device and computer storage medium
  • Decoding prediction method, device and computer storage medium
  • Decoding prediction method, device and computer storage medium

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Embodiment Construction

[0025] In order to understand the characteristics and technical contents of the embodiments of the present application in more detail, the implementation of the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present application.

[0026] In a video image, the first image component, the second image component and the third image component are generally used to represent the decoding block; where these three image components are a luminance component, a blue chrominance component and a red chrominance component respectively , specifically, the luminance component is usually represented by the symbol Y, the blue chrominance component is usually represented by the symbol Cb, and the red chrominance component is generally represented by the symbol Cr.

[0027] In the embodiment of the present appli...

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Abstract

The invention discloses a decoding prediction method, a device and a computer storage medium. The method comprises the steps: obtaining adjacent reference pixel points of a to-be-decoded block, and obtaining a plurality of first adjacent reference pixel points; wherein the first plurality of adjacent reference pixel points comprise one or more reference pixel points in a reference row or a reference column adjacent to the block to be decoded; determining positions corresponding to K reference pixel points from the initial position of the reference row or the reference column; wherein K is a positive integer greater than or equal to 1; based on the positions corresponding to the determined K reference pixel points, a plurality of second adjacent reference pixel points are obtained, and the plurality of second adjacent reference pixel points comprise reference pixel points except the K reference pixel points in the plurality of first adjacent reference pixel points; and performing prediction decoding on the to-be-decoded block based on the second plurality of adjacent reference pixel points.

Description

technical field [0001] The embodiments of the present application relate to the technical field of video coding and decoding, and in particular, to a decoding prediction method, device, and computer storage medium. Background technique [0002] With the improvement of people's requirements for video display quality, new video application forms such as high-definition and ultra-high-definition video have emerged. H.265 / High Efficiency Video Coding (HEVC) is the latest international video compression standard. The compression performance of H.265 / HEVC is better than that of the previous generation video coding standard H.264 / Advanced Video Coding (Advanced Video Coding). , AVC) increased by about 50%, but still cannot meet the needs of the rapid development of video applications, especially new video applications such as ultra-high definition and virtual reality (Virtual Reality, VR). [0003] The Video Coding Expert Group of ITU-T and the Motion Image Expert Group of ISO / IEC...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/182H04N19/44H04N19/593
CPCH04N19/182H04N19/44H04N19/593H04N19/105H04N19/157H04N19/147H04N19/176H04N19/11H04N19/186H04N19/70H04N19/132H04N19/159
Inventor 霍俊彦马彦卓万帅杨付正冉启宏
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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