US 12,236,644 B2
Operation of a household cooking appliance with at least one camera
Josef Pfeiffer, Übersee (DE); and Hans-Martin Eiter, Kirchweidach (DE)
Assigned to BSH Hausgeräte GmbH, Munich (DE)
Appl. No. 17/628,237
Filed by BSH Hausgeräte GmbH, Munich (DE)
PCT Filed Aug. 5, 2020, PCT No. PCT/EP2020/071961
§ 371(c)(1), (2) Date Jan. 19, 2022,
PCT Pub. No. WO2021/032477, PCT Pub. Date Feb. 25, 2021.
Claims priority of application No. 10 2019 212 364.3 (DE), filed on Aug. 19, 2019.
Prior Publication US 2022/0414937 A1, Dec. 29, 2022
Int. Cl. A23L 5/10 (2016.01); A47J 36/32 (2006.01); F27D 21/02 (2006.01); G06T 7/90 (2017.01); H04N 9/64 (2023.01); H04N 9/77 (2006.01); H04N 5/77 (2006.01)
CPC G06T 7/90 (2017.01) [A23L 5/10 (2016.08); A47J 36/32 (2013.01); F27D 21/02 (2013.01); H04N 9/64 (2013.01); H04N 9/77 (2013.01); A23V 2002/00 (2013.01); F27D 2021/026 (2013.01); G06T 2207/10024 (2013.01); H04N 5/77 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method for operating a household cooking appliance, said method comprising:
(a) recording with a camera a recorded image of food within a cooking chamber of the household cooking appliance, wherein the recorded image comprises pixels and each pixel comprises color space data including brightness values;
(b) generating a brightness-normalized image from the recorded image by removing the brightness values from the pixels and using the remaining color space data; and
(c) determining a degree of cooking of the food based on evaluating the brightness-normalized image.