US 12,394,098 B2
Multi-camera video capture for accurate skin tone measurement
Grégoire Charraud, Jersey City, NJ (US); Ji Lee, New York, NY (US); and Shivya Bansal, Somerset, NJ (US)
Assigned to L'Oreal, Paris (FR)
Filed by L'Oreal, Paris (FR)
Filed on Jan. 13, 2023, as Appl. No. 18/154,669.
Prior Publication US 2024/0242384 A1, Jul. 18, 2024
Int. Cl. G06T 7/90 (2017.01); G06T 3/00 (2024.01); G06T 3/16 (2024.01)
CPC G06T 7/90 (2017.01) [G06T 3/16 (2024.01); G06T 2207/10016 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/30201 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of estimating skin tone based on face images, the method comprising:
obtaining, by a computing device, a first video recorded by a first camera having a first field of view in an illuminated environment;
obtaining, by the computing device, a second video recorded by a second camera having a second field of view in the illuminated environment that differs from the first field of view, wherein the second field of view is directed toward a face of a live subject;
extracting, by the computing device, a plurality of lighting environment images from the first video;
extracting, by the computing device, a plurality of face images from the second video that include the face of the live subject;
processing, by the computing device, the face images and the lighting environment images to obtain a plurality of determinations of skin tone of the face;
combining, by the computing device, the determinations of skin tone of the face to determine a combined determination of skin tone; and
presenting, by the computing device, the combined determination of skin tone.