Patent · US Active

Texture masking for video quality measurement

US9672636B2 · kind B2 · utility

2Cited by

2References

9Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Fan Zhang · Lake Barrington, US
Kai Xie · Beijing, CN
Wenfei Jiang · Beijing, CN
Zhibo Chen · Beijing, CN

Key dates

Filing date	Apr 23, 2012
Grant date	Jun 6, 2017
Priority date	—
Expiry date	Apr 23, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/162
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A particular implementation decomposes an image into a structure component and a texture component. An edge strength map is calculated for the structure component, and a texture strength map is calculated for the texture component. Using the edge strength and the texture strength, texture masking weights are calculated. The stronger the texture strength is, or the weaker the edge strength is, the more distortion can be tolerated by human eyes, and thus, the smaller the texture masking weight is. The local distortions are then weighted by the texture masking weights to generate an overall distortion level or an overall quality metric.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.