Invention Grant
- Patent Title: Extrinsic calibration of multiple vehicle sensors using combined target detectable by multiple vehicle sensors
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Application No.: US16457823Application Date: 2019-06-28
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Publication No.: US11557061B2Publication Date: 2023-01-17
- Inventor: Adam Cadien , Zhonghua Ma , Jabeer Ahmed , Nicholas Semansky
- Applicant: GM Cruise Holdings LLC
- Applicant Address: US CA San Francisco
- Assignee: GM Cruise Holdings LLC
- Current Assignee: GM Cruise Holdings LLC
- Current Assignee Address: US CA San Francisco
- Agency: Polsinelli PC
- Main IPC: G06T7/80
- IPC: G06T7/80 ; G01S7/40 ; G01S7/497 ; G01S7/52 ; G01S13/08 ; G01S15/08 ; G01S17/08 ; G06T7/70 ; G06T7/00

Abstract:
Sensors coupled to a vehicle are calibrated, optionally using a dynamic scene with sensor targets around a motorized turntable that rotates the vehicle to different orientations. One vehicle sensor captures a representation of one feature of a sensor target, while another vehicle sensor captures a representation of a different feature of the sensor target, the two features of the sensor target having known relative positioning on the target. The vehicle generates a transformation that maps the captured representations of the two features to positions around the vehicle based on the known relative positioning of the two features on the target.
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