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:
Jan. 28, 2020
Filed:
May. 17, 2016
Interdigital Vc Holdings, Inc., Wilmington, DE (US);
Catherine Serre, Saint Gregoire, FR;
Sebastien Lasserre, Thorgine Fouillard, FR;
Fabrice Le Leannec, Mouaze, FR;
INTERDIGITAL VC HOLDINGS, INC., Wilmington, DE (US);
Abstract
A method and device for encoding or decoding a picture block having a luminance component. The method includes obtaining a luminance residual block (L) by subtracting a first representation (L, L) of an average value of the luminance component calculated from the luminance component, obtaining a second representation (ƒ(L), ƒ(L)) of the average value by applying a transfer function to the average value (L) of the luminance component in order to reduce the dynamic range of the average value and encoding a luminance block (L) obtained by adding () together the luminance residual block (L) and the second representation (ƒ(L), ƒ(L)) of the average value.