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

Method and device for labelling characteristic information of video code stream and method and device for detecting characteristic information of video code stream

A feature information and video technology, applied in the field of video communication, can solve problems such as large amount of calculation and weak robustness, and achieve the effects of small amount of calculation, strong anti-interference, and simple marking and detection methods.

Active Publication Date: 2011-03-23
ZTE CORP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of method involves point-by-point operation, the amount of calculation is large, and the assumptions such as smoothness as the theoretical basis may not be true in practice. At the same time, the application of these methods needs to set the discrimination threshold according to the experiment. Correlation, less robust

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 device for labelling characteristic information of video code stream and method and device for detecting characteristic information of video code stream
  • Method and device for labelling characteristic information of video code stream and method and device for detecting characteristic information of video code stream
  • Method and device for labelling characteristic information of video code stream and method and device for detecting characteristic information of video code stream

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0042] The specific embodiment of the present invention includes the processing of the sending end and the receiving end of the video code stream transmission. Generally, at the sending end, the video code stream needs to be encoded, so in the following, the sending end is also called the encoder end; correspondingly, At the receiving end, the video code stream needs to be decoded, so in the following, the receiving end is also referred to as the decoder end.

[0043] On the encoder side, it is mainly to mark the feature information of the video code stream, and its main process is to perform the following processing steps for each macroblock of the video code stream:

[0044] 1. According to the predetermined characteristics of the macroblock, generate its corresponding characteristic information;

[0045] 2. Respectively sear...

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 method and a device for labelling characteristic information of a video code stream and a method and a device for detecting the characteristic information of the video code stream. For each macroblock of the video code stream, the method for labelling the characteristic information comprises the following steps of: according to the predetermined characteristic of the macroblock, generating the corresponding characteristic information; searching and recording a specific coefficient of each sub-block of the macroblock; and according to a predetermined rule and the characteristic information, performing characteristic information labelling on the specific coefficient of each sub-block. For each macroblock of the video code stream, the method for detecting the characteristic information comprises the following steps of: acquiring first characteristic information of the macroblock; searching and recording a specific coefficient of each sub-block of the macroblock;according to a predetermined rule, performing second characteristic information extraction processing on the specific coefficient of each sub-block; and detecting whether the first characteristic information is the same as the second characteristic information. The invention has good detection rate and does not add extra cost in the video code stream detection.

Description

technical field [0001] The present invention relates to the field of video communication, in particular to a method and device for feature information marking and detection of video code streams. Background technique [0002] With the development of wired broadband network and wireless network and the drive of user needs, multimedia technology and related applications have received more and more attention, and are considered to be one of the mainstream applications of high-speed networks in the future. Compared with traditional Internet applications such as WWW and E-mail, multimedia applications, especially video applications, have stricter requirements on real-time performance and greater demands on bandwidth. Since most video applications use high-compression coding technology, the requirements for transmission errors are particularly stringent, but wired or wireless networks do not provide QOS (Quality of Services) guarantees for transmission. In the video compression c...

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): H04N7/26H04N19/154
Inventor 黄晓红左雯王宁梁立伟范文杰
Owner ZTE CORP
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