Invention Grant
- Patent Title: Combined sensor calibration target for calibrating multiple types of sensors, including infrared cameras and visible light cameras
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Application No.: US16834900Application Date: 2020-03-30
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Publication No.: US11295540B2Publication Date: 2022-04-05
- Inventor: Yongjun Wang , Derek Wu , Ankit Rohatgi
- 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: G06V10/143
- IPC: G06V10/143 ; G06V20/10 ; G06V20/58

Abstract:
A sensor calibration target includes dark markings on a light substrate. The dark markings absorb more heat from a heat source than the light substrate, and are visually distinguishable from the light substrate. Thus, the dark markings are discernable by the both a camera and an infrared sensor of a vehicle during vehicle sensor calibration. The sensor calibration target may otherwise non-metallic but include a metallic feature for calibrating a radio detection and ranging (RADAR) sensor. The sensor calibration target may also include one or more apertures in the substrate for calibrating a light detection and ranging (LIDAR) sensor.
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