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Tuesday, December 04, 2018 11:06:02 AM
Olivier , et al. December 4, 2018
Method and device for encoding and decoding a HDR picture and a LDR picture
Abstract
At least one of the present embodiments generally relates to a method for encoding a HDR picture and a first LDR picture, the method comprising obtaining a second LDR picture responsive to a ratio between the HDR picture and a backlight picture and encoding the first LDR picture and the second LDR picture by predicting one of the first and second LDR pictures by the other one of the first and second LDR pictures. The method wherein it further comprises, before encoding, adjusting the first LDR picture responsive to the backlight picture. The disclosure relates also to a method and device for decoding an LDR picture providing a lower dynamic range depiction of the picture content of an HDR picture.
Inventors:
Olivier; Yannick (Thorigne Fouillard, FR), Touze; David (Rennes, FR), Serre; Catherine (Saint Gregoire, FR)
Applicant:
Name
City
State
Country
Type
THOMSON LICENSING
Issy les Moulineaux
N/A
FR
Assignee:
INTERDIGITAL VC HOLDINGS, INC. (Wilmington, DE)
Family ID:
1000003689305
Appl. No.:
14/953,017
Filed:
November 27, 2015
Prior Publication Data
Document Identifier
Publication Date
US 20160156908 A1 Jun 2, 2016
Foreign Application Priority Data
Nov 27, 2014 [EP] 14306904
Current U.S. Class: 1/1
Current CPC Class: H04N 19/122 (20141101); H04N 19/184 (20141101); H04N 19/98 (20141101); H04N 19/50 (20141101); H04N 19/30 (20141101)
Current International Class: H04N 19/122 (20140101); H04N 19/30 (20140101); H04N 19/184 (20140101); H04N 19/50 (20140101); H04N 19/98 (20140101)
Field of Search: ;375/240.02
PPP
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