The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 23, 2018
Filed:
Sep. 09, 2011
Xiao Dong Gu, Beijing, CN;
Fan Zhang, Hubei, CN;
Zhibo Chen, Beijing, CN;
THOMSON LICENSING, Issy les Moulineaux, FR;
Abstract
In video quality control and estimation, the joint evaluation of compression artifacts and channel artifacts is a problem. The invention considers the joint perception of both a compression artifact level D(V) and a channel artifact level D(V) in a method for calculating overall distortion in a video being affected by compression artifacts and channel artifacts. The method comprises a step of adding a compression artifact level D(V) and a summand S that is derived from log (D(V)) multiplied with a factor that decreases with increasing compression artifact level D, such as D(V)=D(V)+c·(K−D(V))·log(D(V)). The result obtained is a measure for the overall distortion.