Patent · US Active

Video quality measurement considering multiple artifacts

US9924167B2 · kind B2 · utility

0Cited by

3References

16Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Xiaodong Gu · Beijing, CN
Debing Liu · Beijing, CN
Zhibo Chen · Beijing, CN

Key dates

Filing date	Nov 28, 2011
Grant date	Mar 20, 2018
Priority date	—
Expiry date	Jul 13, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04N19/89
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A particular implementation determines objective distortion levels (d,) respectively for a plurality of artifact types. The objective distortion levels are aligned to ensure that the same distortion level of different types of artifacts corresponds to the same perceived distortion level. The aligned distortion levels (d,′) are sorted to obtain sorted distortion levels (d,″). The sorted distortion levels are then pooled together into an overall distortion level or an overall quality metric. The sorted distortion levels may be pooled using a weighted sum, wherein the weight is larger when the sorted distortion level is greater.

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