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Image prediction method and relevant device

A prediction method and technology of prediction device, applied in the field of image processing, can solve the problem of high computational complexity

Active Publication Date: 2015-04-22
HUAWEI TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the 1990s, video coding experts have realized the universality of irregular motion, hoping to improve video coding efficiency by introducing an irregular motion model (that is, a non-translational motion model). However, the existing non-translational motion The computational complexity of the model for image prediction is usually very high

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Embodiment Construction

[0077] Embodiments of the present invention provide an image prediction method and a related device, in order to reduce the computational complexity of image prediction based on a non-translational motion model.

[0078] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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.

[0079] Each will be described in detail below.

[0080]The terms "first", "second", "third", "fourth" and the like in the d...

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Abstract

The embodiment of the invention discloses an image prediction method and a relevant device. The image prediction method comprises the following steps: determining the motion vector predictors of K pixel samples in a current image block, wherein K is an integer greater than 1, the K pixel samples comprise a first vertex angle pixel sample of the current image block, the motion vector predictor of the first vertex angle pixel sample is obtained on the basis of the motion vector of a preset first spatial domain adjacent image block of the current image block, and the first spatial domain adjacent image block is adjacent to a first vertex angle pixel sample spatial domain; and predicting the pixel value of the current image block on the basis of a non-translational motion model and the motion vector predictors of the K pixel samples. According to the scheme in the embodiment of the invention, the computation complexity of image prediction based on the non-translational motion model is lowered.

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 compression through steps such as prediction (includin...

Claims

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Application Information

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IPC IPC(8): H04N19/513H04N19/176H04N19/70H04N19/105
CPCH04N19/176H04N19/182H04N19/51H04N19/513H04N19/54H04N19/52H04N19/70H04N19/172H04N19/593
Inventor 李礼李厚强吕卓逸林四新
Owner HUAWEI TECH CO LTD
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