US 12,236,009 B2
Calibration device, calibration method, drive recorder, vehicle, and storage medium
Yuji Yasui, Wako (JP); Masamitsu Tsuchiya, Wako (JP); and Yutaka Nishizaki, Tokyo (JP)
Assigned to HONDA MOTOR CO., LTD., Tokyo (JP)
Filed by HONDA MOTOR CO., LTD., Tokyo (JP)
Filed on Mar. 1, 2022, as Appl. No. 17/684,050.
Claims priority of application No. 2021-036642 (JP), filed on Mar. 8, 2021.
Prior Publication US 2022/0283636 A1, Sep. 8, 2022
Int. Cl. G06F 3/01 (2006.01); G06V 40/16 (2022.01)
CPC G06F 3/013 (2013.01) [G06V 40/16 (2022.01)] 9 Claims
OG exemplary drawing
 
1. A calibration device for calibrating line-of-sight detection processing based on an image of a face of a user, the calibration device comprising at least one processor circuit and a memory storing instructions, that when executed by the processor circuit, cause the processor circuit to at least:
instruct the user to look at each of a plurality of positions; and
acquire, for each of the plurality of positions, the image of the face of the user looking at each position,
wherein the instructions, that when executed by the processor circuit, cause the processor circuit to, when giving an instruction to look at a position that is not right in front of the user of the plurality of positions without moving the face, give an instruction to look right in front of the user each time a position at which the user is instructed to look to acquire the image of the user's face switches from one position that is not right in front of the user to another position that is not right in front of the user,
wherein the image of the face is acquired by a camera and stored in a storage device, and
wherein the instructions, that when executed by the processor circuit, cause the processor circuit to calibrate the line-of-sight detection processing based on the image of the face stored in the storage device in association with the plurality of calibration positions.