US 12,445,705 B2
Using guided filter to enhance depth estimation with brightness image
Kevin Joseph Mcandrew, Galway (IE); Krystian Balicki, Wroclaw (PL); Charles Mathy, Arlington, MA (US); Nicolas Le Dortz, Jamaica Plain, MA (US); Jonathan Ephraim David Hurwitz, Edinburgh (GB); Eoin E. English, Pallasgreen (IE); and Javier Calpe Maravilla, Valencia (ES)
Assigned to Analog Devices International Unlimited Company, Limerick (IE)
Filed by Analog Devices International Unlimited Company, Limerick (IE)
Filed on Aug. 18, 2022, as Appl. No. 17/890,982.
Claims priority of provisional application 63/310,859, filed on Feb. 16, 2022.
Prior Publication US 2023/0260094 A1, Aug. 17, 2023
Int. Cl. G06T 7/55 (2017.01); G01S 7/4915 (2020.01); G01S 17/36 (2006.01); G01S 17/894 (2020.01); G06T 5/00 (2024.01); G06T 5/20 (2006.01); G06T 5/50 (2006.01); G06T 7/13 (2017.01); G06T 7/521 (2017.01); H04N 23/11 (2023.01); H04N 23/56 (2023.01); H04N 23/74 (2023.01); H04N 25/705 (2023.01); H04N 25/78 (2023.01)
CPC H04N 23/56 (2023.01) [G01S 7/4915 (2013.01); G01S 17/36 (2013.01); G01S 17/894 (2020.01); G06T 5/00 (2013.01); G06T 5/20 (2013.01); G06T 5/50 (2013.01); G06T 7/13 (2017.01); G06T 7/521 (2017.01); G06T 7/55 (2017.01); H04N 23/11 (2023.01); H04N 23/74 (2023.01); H04N 25/705 (2023.01); H04N 25/78 (2023.01); G06T 2207/10028 (2013.01); G06T 2207/10048 (2013.01); G06T 2207/20192 (2013.01); G06T 2207/20221 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
determining a weight for a target pixel of a depth image representing an object based on the depth image and a brightness image representing the object;
determining whether the target pixel represents at least a portion of a boundary of the object based on the weight;
in response to determining that the target pixel represents at least the portion of the boundary, determining a depth value of the target pixel based on a brightness value of a corresponding pixel in the brightness image; and
updating the depth image by assigning the depth value to the target pixel.