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

Method and apparatus of entropy coding and context modelling for video and image coding

A technology of video encoder and video decoder, applied in the field of entropy encoding and decoding and context modeling

Active Publication Date: 2018-09-28
HFI INNOVATION INC
View PDF9 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The simplification of the QTBT structure has also been disclosed by PCT / CN2015 / 096761 filed on December 9, 2015, without further partitioning a CU into multiple PUs or partitioning a CU into multiple TUs

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 and apparatus of entropy coding and context modelling for video and image coding
  • Method and apparatus of entropy coding and context modelling for video and image coding
  • Method and apparatus of entropy coding and context modelling for video and image coding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The following description is a preferred mode of carrying out the present invention. The purpose of this description is to illustrate the general principles of the invention, not to limit it. The scope of protection of the present invention should be defined by the appended claims.

[0028] In order to improve coding efficiency, in the present invention, entropy coding and decoding using the context-based adaptive binary arithmetic coding (CABAC) mode is used for binary tree structure expression. According to the present invention, a context-based entropy codec is used for source symbols associated with blocks having a range of different block sizes, wherein a quadtree structure, a binary tree structure or a combined quadtree plus binary tree structure Partition the initial block to generate the block. The context according to the invention is based on partial information from neighboring blocks and on at least one of the shape, size and depth of the current block, si...

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

A method and apparatus for applying entropy coding to a symbol associated with a block are disclosed. According to the present invention, context-based entropy coding is applied to source symbols associated with blocks having variable block sizes generated by partitioning an initial block using a quadtree structure, a binary-tree structure or a combined quadtree plus binary-tree structure. Contexts according to the present invention are based on some information derived from neighbouring blocks and also based on at least one of the shape, the size and the depth of the current block since the statistics of the symbols associated with the current block may be correlated with how the current block has been partitioned through a tree structure. A current symbol to be encoded or decoded may correspond to split flags and modes associated with the tree structure, skip flag or prediction mode flag.

Description

[0001] priority statement [0002] The present invention claims the priority of PCT patent application No. PCT / CN2015 / 095775 filed on November 27, 2015 and U.S. Provisional Patent Application No. 62 / 387,291 filed on December 23, 2015. The aforementioned PCT patent application and US provisional patent application are hereby incorporated by reference in their entirety. technical field [0003] The present invention generally relates to the technical field of image and video processing. In particular, the present invention relates to entropy coding and context modeling for syntax or symbols generated in video and image coding systems. Background technique [0004] The High-efficiency video coding (HEVC) standard is a joint video project organized by the ITU-T Video Coding Experts Group (Video Coding Experts Group, VCEG) and the ISO / IEC Moving Picture Experts Group (MPEG) standardization organization Developed as a partner of the Joint Collaborative Team on Video Coding (JCT-...

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): H04N19/13
CPCH04N19/70H04N19/91H04N19/96H04N19/105H04N19/13H04N19/159H04N19/176
Inventor 向时达安基程
Owner HFI INNOVATION INC
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