Unlock instant, AI-driven research and patent intelligence for your innovation.

Distributed video encoding and decoding method free of feedback and system thereof

A distributed video encoding and decoding technology, applied in the field of video encoding and decoding, can solve the problems of increasing system complexity and the inapplicability of distributed encoding schemes, and achieve the effects of simplified schemes, reasonable designs, and improved performance

Inactive Publication Date: 2015-04-22
SHANGHAI YINGLIAN SOMATOSENSORY INTELLIGENT TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses a feedback channel, which causes the existing distributed coding scheme to not be applied to the actual system, and increases the complexity of the system

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
  • Distributed video encoding and decoding method free of feedback and system thereof
  • Distributed video encoding and decoding method free of feedback and system thereof
  • Distributed video encoding and decoding method free of feedback and system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] Such as figure 1 As shown, figure 1 It is a flow chart of a distributed video encoding and decoding method without feedback. The method includes: step 1, dividing the video sequence into a key frame K frame and a key frame WZ frame at the encoding end;

[0053] Step 2: The K frame uses intra-frame coding and decoding to reconstruct the K frame and output K'frame;

[0054] Step 3: The WZ frame is subjected to discrete cosine transform, quantization, and channel coding to generate a syndrome sequence. The encoding end directly determines whether to send the syndrome sequence to the decoding end, and then the decoding end generates a K'frame The side information of and the syndrome sequence are jointly decoded, and finally the WZ frame is reconstructed and the WZ' frame is output.

[0055] The step 3 includes:

[0056] Step 31: Store the syndrome sequence after RC-LDPC encoding in a buffer;

[0057] Step 32: Use the external information transfer graph to calculate the r p The lowe...

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 discloses a distributed video encoding and decoding method free of feedback and a system thereof. The method includes step1 dividing a video sequence into a key frame K frame and a key frame WZ frame at the encoding end; step2 enabling the K frame to adopt the inside-frame encoding and decoding mode to rebuild the K frame to output a K' frame; and step3 enabling the WZ frame to be subjected to discrete cosine transformation, quantification and information channel encoding to to generate a verification subsequence. The encoding end directly judges whether to transmit the verification subsequence to the decoding end or not, then side information generated by the K' frame at the decoding end is combined with the verification subsequence to be decoded, and finally the WZ frame is rebuilt to output a WZ' frame. The system can obtain whether decoding succeeds or not without feedback information of the decoding end, and further determines transmitted proper code rate. The method and the system improve side information quality, further improves performance for rebuilding the WZ frame, simplify the distributed video encoding scheme, and effectively improves distributed video encoding performance.

Description

Technical field [0001] The present invention relates to the field of video coding and decoding, in particular to a distributed video coding and decoding method and system without feedback. Background technique [0002] With the rapid development of multimedia technology, 3G and other wireless communication networks and terminal technologies, video processing will be one of the most common applications in wireless communication systems and network systems. Especially for wireless and portable terminals, it is difficult to apply high computational complexity coding technology on the sending end with limited storage, computing, and power resources (such as wireless video surveillance systems, mobile camera phones, notebooks with camera functions, etc.). [0003] Distributed video coding has unique technical characteristics: it uses intra-frame coding and inter-frame decoding technology to move motion estimation from the encoding end to the decoding end, effectively reducing the comple...

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): H04N19/625H04N19/61H04N19/124H04N21/2383H04N19/159
Inventor 纪雯陈益强
Owner SHANGHAI YINGLIAN SOMATOSENSORY INTELLIGENT TECH CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com