Calibration for an autonomous vehicle LIDAR module
First Claim
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1. A light-detection and ranging (LIDAR) calibration system for an autonomous vehicle, the LIDAR calibration system comprising:
- one or more processors; and
one or more memory resources storing instructions that, when executed by the one or more processors, cause the LIDAR calibration system to;
for a set of laser scanners of a LIDAR module, detect a set of return signals from a plurality of fiducial targets, wherein the autonomous vehicle rests on an inclined platform of a rotating turntable to detect the set of return signals, wherein the inclined platform is placed on the rotating turntable and is inclined relative to the rotating turntable; and
based on the set of return signals, generate a set of calibration transforms to adjust a set of intrinsic parameters of the LIDAR module.
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Abstract
A LIDAR calibration module can detect a set of return signals from a plurality of fiducial targets for a set of laser scanners of an autonomous vehicle'"'"'s LIDAR module. The autonomous vehicle can rest on an inclined platform of a rotating turntable to increase range variation in the return signals. Based on the set of return signals, the LIDAR calibration system can generate a set of calibration transforms to adjust a set of intrinsic parameters of the LIDAR module.
127 Citations
20 Claims
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1. A light-detection and ranging (LIDAR) calibration system for an autonomous vehicle, the LIDAR calibration system comprising:
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one or more processors; and one or more memory resources storing instructions that, when executed by the one or more processors, cause the LIDAR calibration system to; for a set of laser scanners of a LIDAR module, detect a set of return signals from a plurality of fiducial targets, wherein the autonomous vehicle rests on an inclined platform of a rotating turntable to detect the set of return signals, wherein the inclined platform is placed on the rotating turntable and is inclined relative to the rotating turntable; and based on the set of return signals, generate a set of calibration transforms to adjust a set of intrinsic parameters of the LIDAR module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A non-transitory computer-readable medium storing instructions that, when executed by one or more processors, cause the one or more processors to:
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for a set of laser scanners of a LIDAR module of an autonomous vehicle, detect a set of return signals from a plurality of fiducial targets, wherein the autonomous vehicle rests on an inclined platform of a rotating turntable to detect the set of return signals, wherein the inclined platform is placed on the rotating turntable and is inclined relative to the rotating turntable, and wherein data collection parameters comprising at least one incline angle associated with the inclined platform are stored in the non-transitory computer-readable medium; and based on the set of return signals and the data collection parameters, generate a set of calibration transforms to adjust a set of intrinsic parameters of the LIDAR module. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A computer-implemented method of calibrating intrinsic parameters of a LIDAR module of an autonomous vehicle, the method comprising:
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for a set of laser scanners of the LIDAR module, detecting a set of return signals from a plurality of fiducial targets, wherein the autonomous vehicle rests on an inclined platform of a rotating turntable to detect the set of return signals, wherein the inclined platform is placed on the rotating turntable and is inclined relative to the rotating turntable; and based on the set of return signals, generating a set of calibration transforms to adjust a set of intrinsic parameters of the LIDAR module.
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Specification