US 11,959,775 B2
Information processing device and information processing method that enable simple calibration
Masato Kimishima, Tokyo (JP); Kosei Yamashita, Tokyo (JP); Toru Amano, Tokyo (JP); and Tetsuro Sato, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/799,094
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Feb. 5, 2021, PCT No. PCT/JP2021/004356
§ 371(c)(1), (2) Date Aug. 11, 2022,
PCT Pub. No. WO2021/166691, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 2020-026209 (JP), filed on Feb. 19, 2020.
Prior Publication US 2023/0081527 A1, Mar. 16, 2023
Int. Cl. G01C 25/00 (2006.01); G06F 3/0346 (2013.01); G06F 3/0354 (2013.01)
CPC G01C 25/005 (2013.01) [G06F 3/0346 (2013.01); G06F 3/03545 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An information processing device, comprising
circuitry configured to detect a stationary attitude measurement value; and
a central processing unit (CPU) configured to:
calculate a gravity direction from information of acceleration in the stationary attitude measurement value;
calculate a component related to autorotation of earth in an angular velocity of the stationary attitude measurement value as an autorotation component of a sensor coordinate system with reference to the circuitry based on the gravity direction, absolute direction, and information of latitude;
calibrate the circuitry based on:
the stationary attitude measurement value that is a measurement value detected by the circuitry and information related to an arrangement of the circuitry in a stationary attitude, and
the autorotation component of the sensor coordinate system with reference to the circuitry.