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:
May. 11, 2021
Filed:
Apr. 25, 2017
Interdigital Vc Holdings, Inc., Wilmington, DE (US);
Edouard Francois, Bourg des Comptes, FR;
Francois Cellier, Rennes, FR;
David Touze, Rennes, FR;
Kangying Cai, Beijing, CN;
INTERDIGITAL VC HOLDINGS, INC., Wilmington, DE (US);
Abstract
A method and an apparatus for decoding at least one high dynamic range picture from a coded bitstream and a method and corresponding apparatus for coding the bitstream are disclosed. A standard dynamic range picture is decoded from the coded bitstream, a set of pivot points is decoded from the coded bitstream. The set of pivot points is representative of an adjustment function f. A predefined color correction function bis selected. An adjusted color correction function bis determined by 1/b[γ]=f[γ]×(1/b[γ]), where γ is a luminance value. The high dynamic range picture is reconstructed from the decoded standard dynamic range picture and the adjusted color correction function b.