Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method of measuring end-to-end delay of mobile phone?video?communication application

A communication application and mobile phone video technology, applied in the field of computer vision, to achieve the effect of simple and effective operation process and improved accuracy

Inactive Publication Date: 2014-05-28
ZHEJIANG UNIV
View PDF5 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to solve the shortcomings of the existing end-to-end delay detection technology for mobile phone video communication applications, and to transform the delay measurement problem into a timestamp recognition problem from the perspective of computer vision

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 of measuring end-to-end delay of mobile phone?video?communication application
  • Method of measuring end-to-end delay of mobile phone?video?communication application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0016] The embodiment of the present invention provides a method for measuring the end-to-end delay of mobile phone video communication applications. The equipment required by the method includes: at least two mobile phone terminals supporting video communication applications (this example takes iPhone 4s as an example), a A computer with LCD display, a high-definition camera and a network that can be used, the configuration requirements are as follows:

[0017] LCD displays used to generate playtime visual mode sequence video are required to support a screen refresh rate of at least 60HZ and above. ...

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 of measuring end-to-end delay of mobile phone?video?communication application. Firstly, a section of visual coding timestamp sequence?video is generated and displayed on an LCD display; secondly, a sender mobile phone and a receiver mobile phone build video connection via video?communication application, the visual coding timestamp sequence?video shot by the sender is sent to the receiver, and the receivers displays the conversation content with the visual coding timestamp sequence?video included on a screen; thirdly, a high-definition camera is used for shooting the LCD display and the receiver screen at the same time; and finally, the acquired video data with the visual coding timestamps included is sent to a delay analysis system, the timestamp on each frame is recognized, time difference among the timestamps is calculated, and the end-to-end delay is obtained. According to the method disclosed by the invention, from?the?perspective?of?the?computer vision, the delay measurement problem is converted into the timestamp reorganization problem, the operation process is simple, the difficult problem of synchronization of different clocks is avoided, and accuracy of delay detection is improved.

Description

technical field [0001] The invention belongs to the field of computer vision, and in particular relates to a method for measuring end-to-end delay of mobile phone video communication applications. Background technique [0002] End-to-end delay, including video acquisition delay, compression delay, transmission delay and decompression delay, is a very important parameter in the performance index of video communication applications. The accuracy of delay measurement is directly related to the quality of communication products and safety. In addition to detecting the end-to-end delay of their own video communication applications, video application developers also need to accurately detect the delay of competitors' applications, so as to effectively compare the delay indicators. Therefore, an accurate and general end-to-end delay detection method is very meaningful for video application developers. [0003] The traditional video delay detection method is: the video application...

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): H04N17/00H04N7/14
Inventor 宋明黎魏朝陈纯卜佳俊周星辰
Owner ZHEJIANG 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
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