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

HEVC interframe coding quick mode selection method

A technology of mode selection and inter-frame coding, applied in the field of digital video coding, which can solve the problems of insufficient temporal and spatial correlation of CTU coding information.

Active Publication Date: 2015-12-09
ZHEJIANG UNIV OF TECH
View PDF5 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the temporal and spatial correlation of video has been used in the above methods to improve processing performance, the temporal and spatial correlation of CTU coding information has not been fully explored.

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
  • HEVC interframe coding quick mode selection method
  • HEVC interframe coding quick mode selection method
  • HEVC interframe coding quick mode selection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] The present invention will be described in detail below in conjunction with the embodiments and accompanying drawings, but the present invention is not limited thereto.

[0051] like figure 1 As shown, a fast mode selection method for HEVC interframe coding comprises the following steps:

[0052] (1) Input a frame of video data;

[0053] (2) Select a CTU to be estimated;

[0054] (3) Calculate the depth prediction range of the current CTU;

[0055] (4) Select a CU to be estimated in the current CTU;

[0056] (5) Estimation of large-size inter-frame PU mode;

[0057] (6) Selection of small-size inter-frame PU mode estimation:

[0058] (7) Estimation of symmetric inter-PU mode;

[0059] (8) Selection of asymmetric inter-PU mode estimation;

[0060] (9) Estimation of intra-frame PU mode;

[0061] (10) Select the best PU mode of the current CU;

[0062] (11) Judgment of terminating CU division;

[0063] (12) Complete the estimation of all CUs;

[0064] (13) Compl...

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 invention relates to an HEVC interframe coding quick mode selection method, comprising the following steps of: 1, inputting frame video data; 2, selecting a coding tree unit (CTU) to be estimated; 3, calculating the depth estimation range of the current CTU; 4, selecting a CU to be estimated in the current CTU; 5, estimating a large size interframe prediction unit (PU) mode; 6, selecting to estimate a small size interframe PU mode or not; 7, estimating a symmetrical interframe PU mode; 8, selecting to estimate an asymmetrical interframe PU mode or not; 9, estimating an interframe PU mode; 10, selecting the optimum PU mode of the current CU; 11, ending the judgment of the CU partition; 12, repeating the steps 4 to the steps 11 until estimation of all CUs is completed; and 13, repeating the steps 2 to the steps 12 until estimation of all CTUs in the current frame is completed. According to the HEVC interframe coding quick mode selection method, the coding time of the HEVC can be effectively reduced, and meanwhile the good rate-distortion performance is kept.

Description

technical field [0001] The invention relates to the field of digital video coding, in particular to a fast mode selection method for HEVC inter-frame coding. Background technique [0002] As video multimedia applications such as video conferencing, video surveillance, and digital TV gradually enter people's lives, high-definition video (720P and 1080P) and ultra-high-definition video (4K and 8K) appear one after another, and people's demand for higher resolution and higher frame The rate of video constantly puts forward new requirements. The currently widely used video coding standard H.264 has been difficult to meet the development needs of high-definition and ultra-high-definition video storage and transmission. In order to further obtain more efficient video coding efficiency, the Video Coding Experts Group (Video Coding Experts Group, VCEG) of the international organization ITU-T and the Moving Picture Experts Group (MPEG) of ISO / IEC established the Joint Collaborative ...

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
IPC IPC(8): H04N19/109H04N19/147
Inventor 朱威张训华王财盛朱慧陈朋郑雅羽
Owner ZHEJIANG UNIV OF TECH
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