US 12,437,445 B2
Image combinations for high dynamic range processing
Stephane Valente, Paris (FR); Miguel Marques, Bois d'Arcy (FR); and Romain Gounelle, Paris (FR)
Assigned to GoPro, Inc., San Mateo, CA (US)
Filed by GoPro, Inc., San Mateo, CA (US)
Filed on May 24, 2023, as Appl. No. 18/201,386.
Prior Publication US 2024/0394923 A1, Nov. 28, 2024
Int. Cl. H04N 23/73 (2023.01); G06T 7/00 (2017.01); G06T 7/20 (2017.01)
CPC G06T 7/97 (2017.01) [G06T 7/20 (2013.01); H04N 23/73 (2023.01); G06T 2207/20208 (2013.01); G06T 2207/20212 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
obtaining a reference short-exposure duration (SR) and a reference long-exposure duration (LR);
configuring an image sensor to set respective exposure durations 11, S, and 12 for a first image, a second image, and a third image such that LR is approximately equal to 11+S+12;
receiving multiple images comprising the first image, the second image, and the third image, wherein the second image is temporally between the first image and the third image;
combining the first image, the second image, and the third image to obtain a long-exposure image;
applying high dynamic range processing to the second image and the long-exposure image to obtain an output image with a larger dynamic range than a dynamic range of the second image, wherein the high dynamic range processing uses the second image as a short-exposure image; and
transmitting, storing, or displaying an image based on the output image.