Multimedia data unequal error protection method based on Raptor code

A technology of multimedia data and multimedia data packets, applied in the direction of error prevention, digital transmission system, electrical components, etc., can solve the problems of increasing difficulty and achieve the effect of easy use

Active Publication Date: 2013-11-13
SHANGHAI JIAO TONG UNIV
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This tends to increase the difficulty for practical applications compared to standard Raptor codes

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
  • Multimedia data unequal error protection method based on Raptor code
  • Multimedia data unequal error protection method based on Raptor code
  • Multimedia data unequal error protection method based on Raptor code

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0024] Here, the present invention is applied to the unequal error protection of an H.264 / AVC video packet of a Group Of Pictures (GOP), and the Raptor code adopted is the standard system Raptor code in the 3GPP standard. Refer to the specific implementation figure 1 The flow shown is processed, figure 2 and image 3 They are schematic diagrams of basic unequal error protection and enhanced unequal error protection respectively. The details of the embodiments are further described below.

[0...

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 provides a multimedia data unequal error protection method based on a Raptor code. The method includes two application modes of basic unequal error protection and reinforced unequal error protection, and unequal error protection of multimedia data packages is achieved through the steps of distortion impact evaluation, sequencing and classification, Raptor coding and transmitting and the like. The method completely utilizes the good characteristics of the Raptor code under large block length. In addition, the method is easy to use due to the fact that the standard Raptor code is used.

Description

technical field [0001] The invention relates to a multimedia data error protection method in the field of communication technology, in particular to a Raptor code-based multimedia data unequal error protection (Uequal Error Protection, UEP) method. Background technique [0002] With the development of information technology, various multimedia applications have become ubiquitous in modern life. Many multimedia services depend on the transmission of multimedia data such as audio and video. Since existing channels such as wireless networks are often inevitably affected by transmission errors. Therefore, how to protect multimedia data in transmission has become a problem that must be faced in practical applications. [0003] One type of method for protecting data transmission is a forward error correction (Forward Error Correction, FEC) method based on a channel code. At present, traditional channel codes such as RS codes are often used to provide protection. Recently, Shok...

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): H04L1/00
Inventor 宋利骆政屹
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap