Method for coding and decoding video image, coding equipment and decoding equipment

A video image and coding technology, applied in image communication, digital video signal modification, electrical components, etc., can solve problems such as restricting coding efficiency

Active Publication Date: 2015-05-27
HUAWEI TECH CO LTD
View PDF6 Cites 46 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, a six-parameter affine motion parameter model needs to be used, that is, additional bits need to be used in each block to encode six affine motion model parameters, which restricts the further improvement of coding efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for coding and decoding video image, coding equipment and decoding equipment
  • Method for coding and decoding video image, coding equipment and decoding equipment
  • Method for coding and decoding video image, coding equipment and decoding equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0097] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the 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 persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0098] figure 1 is a schematic flowchart of a method for encoding video images according to an embodiment of the present invention. figure 1 The illustrated method may be performed by an encoding device, such as an encoder. Specifically, such as figure 1 As shown, method 100 includes:

[0099] S110. Determine a motion vector group of the current coding block, where the motion vector group includes at least one motion vector of the current coding block; ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

An embodiment of the invention relates to a method for coding and decoding a video image, coding equipment and decoding equipment. The method comprises steps as follows: determining a motion vector group of a current coding block; determining a prediction value of a first component set of a motion model initial vector of the current coding block according to the motion vector group; determining a to-be-transmitted value of the first component set according to the prediction value of the first component set; coding the to-be-transmitted value of the first component set and sending the coded to-be-transmitted value to a decoding end. According to the method for coding and decoding the video image, the coding equipment and the decoding equipment, the motion model initial vector of the current coding block is determined according to the motion vector group, the to-be-transmitted value of a motion model is determined according to the motion model initial vector and is coded and transmitted, so that the decoding end can decode according to the to-be-transmitted value of the motion model, and the volume of data transmitted during coding and decoding and occupied bit number can be reduced.

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] In various video codecs, motion estimation / motion compensation is a key technology that affects the coding performance. In the various existing video codecs, it is assumed that the motion of the object always satisfies the translational motion, and all parts of the whole object have the same motion, and the block-based motion compensation technology is adopted. However, these methods are all based on the Translational Motion Model, and are various improvements based on the method of block motion compensation. There are many kinds of motion in the real world, and irregular motions such as affine, scaling, rotation, and shearing motions are ubiquitous. The existence of these motions will cause the motion prediction effect based on block motion compensation to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/513H04N19/124
CPCH04N19/124H04N19/157H04N19/176H04N19/196H04N19/513H04N19/44H04N19/52H04N19/56
Inventor 林四新陈焕浜
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap