US 12,217,482 B2
Processing apparatus, processing method, and computer readable medium
Yoshimasa Ono, Tokyo (JP); Akira Tsuji, Tokyo (JP); and Junichi Abe, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 17/637,132
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Aug. 28, 2019, PCT No. PCT/JP2019/033770
§ 371(c)(1), (2) Date Feb. 22, 2022,
PCT Pub. No. WO2021/038767, PCT Pub. Date Mar. 4, 2021.
Prior Publication US 2022/0343628 A1, Oct. 27, 2022
Int. Cl. G06V 10/762 (2022.01); G06V 10/764 (2022.01)
CPC G06V 10/764 (2022.01) [G06V 10/762 (2022.01)] 17 Claims
OG exemplary drawing
 
1. A processing apparatus comprising:
at least one memory storing instructions, and
at least one processor configured to execute the instructions to:
classify three-dimensional point group data acquired based on a reflected light from a structure to be inspected illuminated by light into clusters, which are units of a shape that corresponds to the structure, based on positional information at each point of the data;
determine whether a first cluster and a second cluster included in the classified clusters correspond to one structure based on a positional relation between the classified clusters;
generate a first projection cluster obtained by projecting the first cluster onto a predetermined first plane and a second projection cluster obtained by projecting the second cluster onto the first plane, the first plane being vertical to a line that connects the center of gravity of the first cluster to the center of gravity of the second cluster; and
take into account a result of a determination regarding whether the first projection cluster matches the second projection cluster in the association between the first cluster and the second cluster.