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Method and arrangement for video telephony quality assessment

A technology for video telephony and quality assessment, which is applied in the field of quality assessment of video telephony media, can solve problems such as not always convenient, and achieve the effect of improving quality assessment and realizing quality assessment

Inactive Publication Date: 2009-12-09
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is not always convenient if you wish to test some other video content

Method used

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  • Method and arrangement for video telephony quality assessment
  • Method and arrangement for video telephony quality assessment
  • Method and arrangement for video telephony quality assessment

Examples

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Embodiment Construction

[0038] The present invention will be described in the context of a general video phone system, where a video phone conversation (two-way or one-way) is conducted between the video phone provider and the receiving device. The receiving device can be a mobile terminal or other mobile devices (for example, a laptop computer, a PDA, etc.), or a test terminal used to evaluate the quality of the session and / or system, or an intermediate network node.

[0039] In the most general aspect of the present invention, the present invention achieves: by using the information from the network itself and the encoded information from the actual video phone media stream, it can compare the perceived audio quality of the video phone service or media in the mobile or fixed network. , Video quality or overall quality-related quality scores or metrics for objective estimation. Then, objective estimates can be mapped to subjective quality scores such as MOS scores, or the two can be compared. In the fol...

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Abstract

In a method of quality assessment for a multimedia signal comprising video telephony media in a video telephony system, the multimedia signal is received SlO, a plurality of parameters of said multimedia signal are extracted S20, and an objective quality measure is determined S30 for the video telephony media based on representations of at least two of the extracted parameters.

Description

Technical field [0001] The present invention relates generally to telecommunication systems, and in particular to the assessment of the quality of video telephony media in such systems. Background technique [0002] In order to ensure a good quality of service experience, telecommunication system operators (for both wireless and wired networks) used tools and measurement methods to locate and prevent network or service problems in the early days. Given specific network resources, the use of good tools can also optimize the network to allow more users to have a "good enough" experience of the services provided. Some services only require measurement of a few network parameters such as throughput to give end users a good quality estimate. When faced with media services such as video calls, the task of measuring the quality of experience is no longer so trivial. The reason is that several factors, including the media itself, may cause quality degradation. [0003] It is known that t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M3/22
CPCH04M3/2236H04L29/06523H04L65/80
Inventor T·艾纳森J·古斯塔夫森G·海基拉M·彼得森X·谭
Owner TELEFON AB LM ERICSSON (PUBL)
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