US 12,081,778 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 LICENSING CORPORATION, San Francisco, CA (US)
Filed by DOLBY LABORATORIES LICENSING CORPORATION, San Francisco, CA (US)
Filed on Jan. 16, 2024, as Appl. No. 18/413,691.
Application 18/413,691 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 2024/0155143 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)] 3 Claims
OG exemplary drawing
 
1. An apparatus for generating a bitstream comprising coded image data and metadata, the apparatus comprising:
an input to access source video signals to generate coded image data; and a processor,
wherein the processor:
generates output metadata associated with the coded image data;
generates a bitstream comprising the coded image data and the output metadata, wherein the output metadata comprise a first set of metadata and a second set of metadata, wherein:
the first set of metadata is associated with a portion of the image data and comprises one or more parameters representing characteristics of a reference display device that is used during creation of the image data to color grade the video signals, the parameters including:
a. a white point for the reference display,
b. three primaries for the reference display, and
c. at least one luminance level for the reference display; and
the second set of metadata is associated with the same portion of the image data and includes at least a maximum luminance level for the image data.