US 12,066,283 B2
Identification method, projection method and identification system
Kohei Yanai, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Dec. 2, 2021, as Appl. No. 17/540,710.
Claims priority of application No. 2020-200813 (JP), filed on Dec. 3, 2020.
Prior Publication US 2022/0178681 A1, Jun. 9, 2022
Int. Cl. G01B 11/25 (2006.01); G01B 11/02 (2006.01); G03B 17/54 (2021.01); G06V 10/60 (2022.01)
CPC G01B 11/254 (2013.01) [G01B 11/026 (2013.01); G03B 17/54 (2013.01); G06V 10/60 (2022.01)] 11 Claims
OG exemplary drawing
 
1. An identification method comprising:
obtaining first information for each of first pixels constituting a first image obtained by imaging a first object with a first camera, the first information related to reflected light from the first object including a body;
obtaining second information for each of the first pixels, the second information corresponding to a distance from the first object to the first camera;
obtaining an index value as a result of a calculation using the first information and the second information for each of the first pixels; and
identifying whether each of the first pixels is a first area of the first image corresponding to the body or a second area of the first image corresponding to an area other than the first area by judging whether each of the first pixels belongs to the first area based on the index value.