US 12,231,660 B2
Scalable systems for controlling color management comprising varying levels of metadata
Neil W. Messmer, Langley (CA); Robin Atkins, Campbell, CA (US); Steve Margerm, New Westminister (CA); and Peter W. Longhurst, Vancouver (CA)
Assigned to DOLBY LABORATORIES CORPORATION, San Francisco, CA (US)
Filed by DOLBY LABORATORIES LICENSING CORPORATION, San Francisco, CA (US)
Filed on Jan. 16, 2024, as Appl. No. 18/413,720.
Application 18/413,720 is a continuation of application No. 18/219,344, filed on Jul. 7, 2023, granted, now 11,917,171.
Application 18/219,344 is a continuation of application No. 17/353,519, filed on Jun. 21, 2021, granted, now 11,736,703, issued on Aug. 22, 2023.
Application 17/353,519 is a continuation of application No. 14/740,862, filed on Jun. 16, 2015, granted, now 11,218,709, issued on Jan. 4, 2022.
Application 14/740,862 is a continuation of application No. 14/003,097, granted, now 9,111,330, issued on Aug. 18, 2015, previously published as PCT/US2012/038448, filed on May 17, 2012.
Claims priority of provisional application 61/491,014, filed on May 27, 2011.
Prior Publication US 2024/0155144 A1, May 9, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/30 (2014.01); G06T 9/00 (2006.01); G09G 5/02 (2006.01); H04N 1/60 (2006.01); H04N 9/69 (2023.01); H04N 21/235 (2011.01); H04N 21/4402 (2011.01); G06F 3/14 (2006.01)
CPC H04N 19/30 (2014.11) [G06T 9/00 (2013.01); G09G 5/02 (2013.01); H04N 1/603 (2013.01); H04N 9/69 (2013.01); H04N 21/235 (2013.01); H04N 21/440227 (2013.01); G06F 3/1454 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A decoder apparatus comprising:
a receiver that receives image data as a bitstream, wherein:
content encoded in the bitstream is produced on a physical reference display device, characteristics of the reference display device being identified in the bitstream by a set of one or more parameters, and
the image data is associated with corresponding image metadata;
a decoder that decodes the bitstream; and
a determination unit that is configured to:
determine if the image metadata includes a set of metadata associated with a portion of the image data, wherein the set of metadata includes a representation of the one or more parameters of the reference display device; and
determine if the image metadata includes a different set of metadata associated with video content characteristics of the image data, wherein the different set of metadata includes at least a maximum luminance level of the image data; and
wherein the set of metadata includes:
a. a white point for the reference display, and
b. three primaries for the reference display; and
provide the set of metadata including the representation of the one or more parameters of the reference display device for display of the image data;
wherein determining if the image metadata includes a different set of metadata is independent of determining if the image metadata includes a set of metadata.