US 11,902,595 B2
Method and apparatus for processing a medium dynamic range video signal in SL-HDR2 format
Pierre Andrivon, Liffre (FR); Patrick Lopez, Livré sur Changeon (FR); Marie-Jean Colaitis, Cesson-Sevigne (FR); and David Touze, Rennes (FR)
Assigned to InterDigital VC Holdings, Inc., Wilmington, DE (US)
Filed by InterDigital VC Holdings, Inc., Wilmington, DE (US)
Filed on Jul. 8, 2022, as Appl. No. 17/860,752.
Application 17/860,752 is a continuation of application No. 17/261,658, granted, now 11,388,447, previously published as PCT/US2019/041275, filed on Jul. 11, 2019.
Claims priority of application No. 18305993 (EP), filed on Jul. 20, 2018.
Prior Publication US 2022/0368954 A1, Nov. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/98 (2014.01); H04N 19/70 (2014.01); H04N 19/186 (2014.01); G06T 5/00 (2006.01)
CPC H04N 19/98 (2014.11) [H04N 19/70 (2014.11)] 6 Claims
OG exemplary drawing
 
1. A method comprising:
receiving a medium dynamic range video signal and metadata associated with the medium dynamic range video signal, the metadata including data representative of a peak luminance value of the medium dynamic range video signal;
receiving data representative of a peak luminance value of a presentation display;
determining whether the peak luminance value of the medium dynamic range video signal is greater or lower than the peak luminance value of the presentation display; and
processing the medium dynamic range video signal in a first mode if the peak luminance value of the medium dynamic range video signal is greater than the peak luminance value of the presentation display and in a second mode if the peak luminance value of the medium dynamic range video signal is smaller than the peak luminance value of the presentation display, wherein a variable included in the metadata has a data value representing the second mode to specify that a high dynamic range video signal has been pre-processed according to the second mode to generate the medium dynamic range video signal.