US 12,192,638 B2
Laser scanning apparatus, laser scanning method, and laser scanning program
You Sasaki, Tokyo (JP)
Assigned to TOPCON CORPORATION, Tokyo (JP)
Filed by TOPCON CORPORATION, Tokyo (JP)
Filed on Feb. 7, 2023, as Appl. No. 18/165,354.
Claims priority of application No. 2022-020160 (JP), filed on Feb. 14, 2022.
Prior Publication US 2023/0262336 A1, Aug. 17, 2023
Int. Cl. H04N 23/698 (2023.01); G01S 7/481 (2006.01); G01S 17/86 (2020.01); G01S 17/89 (2020.01)
CPC H04N 23/698 (2023.01) [G01S 7/4817 (2013.01); G01S 17/86 (2020.01); G01S 17/89 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A laser scanning apparatus comprising:
a horizontally rotatable horizontal rotation unit including a camera and a laser scanning unit that is configured to perform laser scanning in an upper-lower direction; and
a processor or circuitry being configured to perform a process of not selecting some pieces of laser scanning data that are obtained by laser scanning in the upper-lower direction,
wherein the laser scanning and photography that uses the camera are performed while the horizontal rotation unit is horizontally rotated;
the photography is performed by decelerating rotation of the horizontal rotation unit;
the processor or circuitry does not select some pieces of laser scanning data that are obtained by laser scanning in the upper-lower direction during the deceleration,
wherein the deceleration is performed on the horizontal rotation unit in a state of being rotated at a constant speed, and
some pieces of laser scanning data, which are obtained by laser scanning in the upper-lower direction, are not selected, so as to reduce differences between scanning intervals in a horizontal direction of laser scanning in the upper-lower direction during rotation at the constant speed and scanning intervals in the horizontal direction of laser scanning in the upper-lower direction during the deceleration.