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

Distributed codec method and system based on hvs&roi

A technology of encoding method and decoding method, applied in digital video signal modification, electrical components, image communication, etc.

Inactive Publication Date: 2016-09-28
CHINA UNIV OF MINING & TECH
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the deficiencies of the above-mentioned technologies, and provide a kind of dark light and low-illuminance environment for poor lighting in coal mines. Only the part of the macroblock above the JND threshold is encoded, and the encoding complexity is not increased as much as possible. HVS&ROI-based distributed encoding and decoding method and system that effectively improve the subjective quality of video, reduce transmission rate and save energy consumption and bandwidth

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 codec method and system based on hvs&roi
  • Distributed codec method and system based on hvs&roi
  • Distributed codec method and system based on hvs&roi

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0090] An implementation of the present invention will be further described below in conjunction with the accompanying drawings:

[0091] Such as figure 1 Shown: the distributed codec device based on HVS&ROI of the present invention comprises encoder and decoder, wherein:

[0092] Described coder comprises:

[0093] The H.264 intraframe encoder: used to perform H.264 intraframe encoding on the input key frame, and send the obtained compressed code stream to the H.264 intraframe decoder;

[0094]The ESI generation unit: used to construct rough encoding side information at the encoding end, the abbreviation of Encoder-side SideInformation is ESI, select the block FB corresponding to the forward adjacent frame, the corresponding block BB corresponding to the backward adjacent frame, and the front and rear phase The reference block corresponding to the average block AB of the adjacent frame and the corresponding block of the WZ frame is used as ESI, and the ESI and each block of...

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 distributed encoding method and system based on HVS / ROI (human vision system and region of interest) and belongs to distributed encoding methods and systems. The system comprises an encoder and a decoder. The encoder divides an input video Wyner-Ziv frame into macroblocks C and macroblocks AC by an HVS JND (just noticeable distortion) model, and macroblocks of a K frame and macroblocks of the WZ frame are encoded independently. The decoder is used for joint decoding of received code streams. The HVS JND model is introduced, so that data processing and transmission of JND thresholds in next region are reduced, transmission rate is reduced, and energy consumption and bandwidth are economized. A glare region with high movement violence and brightness contrast is subjected to ROI extraction and is subjected to entropy encoding, and subjective quality is improved while encoding complexity is not increased as far as possible.

Description

technical field [0001] The present invention is a distributed encoding and decoding method and system, in particular, a distributed encoding and decoding method and system based on HVS&ROI. Background technique [0002] With the development of sensor technology, underground communication technology and Internet of Things technology, it provides technical support for improving the performance, safety and reliability of coal mine underground monitoring system. Relying on the National Natural Science Foundation of China project "Basic Theoretical Research on Mine Multimedia Disaster Relief Communication System with Long-distance WMSN", it is planned to adopt a wireless multimedia sensor network (Wireless Multimedia Sensor Network, WMSN) with self-organization, flexible placement and strong mobility To realize the collection and transmission of monitoring images after mine disasters. [0003] In WMSN, video sensor nodes with limited computing power and energy have two basic req...

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): H04N19/122H04N19/176H04N19/129H04N19/167H04N19/30H04N19/154
Inventor 丁恩杰黄河袁莎莎仲亚丽徐卫东向洁
Owner CHINA UNIV OF MINING & 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