Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Codec method, device, device and readable storage medium for intra-frame prediction mode

An intra-frame prediction mode and coding method technology, applied in the field of video processing, can solve problems such as large bit overhead, and achieve the effects of increasing probability, reducing codeword length, and reducing bit overhead

Active Publication Date: 2021-04-27
ZHEJIANG DAHUA TECH CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the current encoding technology of intra prediction mode still has the problem of high bit overhead

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
  • Codec method, device, device and readable storage medium for intra-frame prediction mode
  • Codec method, device, device and readable storage medium for intra-frame prediction mode
  • Codec method, device, device and readable storage medium for intra-frame prediction mode

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0108] Example 1: get M=6, statistical array S[67], and replace all special patterns with elements in this statistical array;

[0109] If L and A modes are the same, and L=S[2]:

[0110] MPM[6]={L, S[0], S[1], S[3], S[4], S[5]};

[0111] If L and A patterns are not the same, and L=S[1], A=S[6]:

[0112] MPM[6]={L, A, S[0], S[2], S[3], S[4]};

example 2

[0113] Example 2: get M=3, statistical array S[67], and replace N=1 special patterns with elements in this statistical array;

[0114] If L and A have the same pattern, and L! =Planar, L=S[2], S[0]! =Planar:

[0115] MPM[3] = {L, Planar, S[0]};

[0116] If L and A patterns are not the same, and L=S[0], A=S[6]:

[0117] MPM[3]={L,A,S[1]};

example 3

[0118] Example 3: get M=6, statistics array S[67], and replace N=2 special patterns with elements in this statistics array,

[0119] If L and A modes are the same, and L is not equal to Planar, DC or V mode, and L=S[1], S[0]=DC, S[3]=Planar, S[2] and S[4] are not is equal to V:

[0120] MPM[6]={L, Planar, DC, V, S[2], S[4]};

[0121] If L and A patterns are not the same, and L=S[1], A=S[2], S[3]=Planar, S[0] and S[4] are not equal to DC:

[0122] MPM[6]={L, A, Planar, DC, S[0], S[4]}.

[0123] In one embodiment, such as Image 6 As shown, a decoding method of the intra prediction mode is provided, and the method is applied to the decoding end as an example for illustration, including the following steps:

[0124] S601. Construct the most probable prediction mode MPM candidate list of the current data block according to the statistical times of each intra-frame prediction mode adopted by the decoded data block; the decoded data block includes: at least one of the decoded da...

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

The present application relates to a codec method, device, device and readable storage medium of an intra prediction mode. The encoding method of the intra-frame prediction mode includes: according to the statistical times of each intra-frame prediction mode adopted by the encoded data block, constructing the most probable prediction mode MPM candidate list of the current data block; according to the MPM candidate list of the current data block, Determine the MPM set of the current data block; obtain the target intra prediction mode of the current data block according to the MPM set of the current data block; if there is a target intra prediction mode in the MPM set of the current data block, then according to the target intra prediction mode in The sequence in the MPM set encodes the target intra-frame prediction mode, and determines the codeword of the target intra-frame prediction mode. The method reduces the codeword length of the target intra-frame prediction mode of the current data block and reduces the bit overhead.

Description

technical field [0001] The present application relates to the technical field of video processing, and in particular to a codec method, device, device and readable storage medium of an intra prediction mode. Background technique [0002] In order to reduce the resources occupied by video data storage or transmission, it is usually necessary to encode (i.e. compress) the video data. The encoded data is called a video code stream, and the video code stream is transmitted to the client through a wired or wireless network, and then Decode and watch. The entire video coding process includes prediction, transformation, quantization, coding and other processes. [0003] Video is formed by continuous playback of many still images, and each still image can be regarded as a frame; since the pixel values ​​of similar pixels in a frame are usually relatively close, the color generally does not change suddenly, so This spatial correlation can be used for compression, and this technique...

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 Patents(China)
IPC IPC(8): H04N19/11H04N19/176H04N19/567H04N19/70
CPCH04N19/11H04N19/176H04N19/567H04N19/70
Inventor 林聚财殷俊曾飞洋方诚其他发明人请求不公开姓名
Owner ZHEJIANG DAHUA TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com