Method and relevant device for predicting pictures

A prediction method and image technology, applied in the field of image processing, can solve the problems of low prediction accuracy and affecting the quality of video encoding and decoding, etc.

Active Publication Date: 2015-02-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of testing and practice, it is found that the prediction accuracy of existing prediction technologies is sometimes low, which may affect the quality of video encoding and decoding.

Method used

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  • Method and relevant device for predicting pictures
  • Method and relevant device for predicting pictures
  • Method and relevant device for predicting pictures

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Embodiment Construction

[0102] Embodiments of the present invention provide an image prediction method and a related device, in order to improve the accuracy of image prediction.

[0103] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0104] Each will be described in detail below.

[0105] The terms "first", "second", "third", "fourth" and the like in the description and claims of the present invention and t...

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Abstract

An embodiment of the invention discloses a method and a relevant device for predicting pictures. The method for predicting the pictures includes determining N templates; determining the weight of each template in pixel regions in corresponding picture blocks; computing predicted pixel values of pixel regions in current picture blocks on the basis of the weights of the templates in the pixel regions in the corresponding picture blocks and pixel values. Matching degrees of current templates and the determined templates meet preset conditions, the current templates are templates corresponding to the current picture blocks, the N is a positive integer, and the N templates are found from reference pictures of the current picture blocks. The weights of at least one template among the N templates in at least two pixel regions in the corresponding picture blocks are different from each other. Each pixel region comprises at least one pixel point. According to the technical scheme, the method and the relevant device in the embodiment of the invention have the advantage that the method and the relevant device are favorable for improving the picture prediction accuracy.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image prediction method and a related device. Background technique [0002] With the development of photoelectric acquisition technology and the growing demand for high-definition digital video, the amount of video data is increasing. The limited heterogeneous transmission bandwidth and diversified video applications continue to put forward higher requirements for video coding efficiency. The formulation of High Efficient Video Coding (English: high efficient video coding, abbreviation: HEVC) standard was started due to need. [0003] The basic principle of video coding and compression is to use the correlation between space domain, time domain and code words to remove redundancy as much as possible. The current popular practice is to use a block-based hybrid video coding framework to achieve video coding and compression through operations such as prediction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/105H04N19/147H04N19/182H04N19/523
CPCH04N19/51H04N19/44H04N19/567H04N19/105H04N19/147H04N19/182H04N19/523H04N19/513
Inventor 黄鑫张红杨海涛
Owner HUAWEI TECH CO LTD
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