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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.:

US 11195492 B1

PDFFull Text
Date of Patent:
Dec. 07, 2021

Filed:

Nov. 30, 2020

Optimizing high dynamic range images for particular displays

Applicant:

Koninklijke Philips N.v., Eindhoven, NL;

Inventors:

Johannes Gerardus Rijk Van Mourik, Eindhoven, NL;

Mark Jozef Willem Mertens, Eindhoven, NL;

Rutger Nijland, Someren, NL;

Assignee:

Koninklijke Philips N.V., Eindhoven, NL;

Attorney:
Primary Examiner:

YuJang Tswei

Int. Cl.
CPC ...
G09G 5/02 (2006.01); H04N 19/30 (2014.01); H04N 19/46 (2014.01); H04N 19/85 (2014.01); G06T 5/00 (2006.01); G06T 5/50 (2006.01); G09G 3/20 (2006.01); G11B 27/031 (2006.01); H04N 9/68 (2006.01); H04N 21/2343 (2011.01); H04N 21/435 (2011.01); G06T 5/40 (2006.01);
U.S. Cl.
CPC ...
G09G 5/02 (2013.01); G06T 5/007 (2013.01); G06T 5/50 (2013.01); G09G 3/2003 (2013.01); G11B 27/031 (2013.01); H04N 9/68 (2013.01); H04N 19/30 (2014.11); H04N 19/46 (2014.11); H04N 19/85 (2014.11); H04N 21/23439 (2013.01); H04N 21/4358 (2013.01); G06T 5/009 (2013.01); G06T 5/40 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/20008 (2013.01); G06T 2207/20208 (2013.01); G09G 2320/0271 (2013.01); G09G 2320/0276 (2013.01); G09G 2320/06 (2013.01); G09G 2320/066 (2013.01); G09G 2320/0666 (2013.01); G09G 2340/06 (2013.01); G09G 2360/16 (2013.01);
Abstract

To enable practical and quick generation of a family of good looking HDR gradings for various displays on which the HDR image may need to be shown, we describe color transformation apparatus () to calculate resultant colors (R, G, B) of pixels of an output image (IM_MDR) for a display with a display peak brightness (PB_D) starting from input colors (R,G,B) of pixels of an input image (Im_in) having a maximum luma code corresponding to a first image peak brightness (PB_IM) which is different from the display peak brightness, characterized in that the color transformation apparatus comprises:

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