Extrinsic calibration of imaging sensing devices and 2D LIDARs mounted on transportable apparatus

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United States of America Patent

PATENT NO 9875557
SERIAL NO

14440294

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Abstract

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A method and system for determining extrinsic calibration parameters for at least one pair of sensing devices mounted on transportable apparatus obtains (202) image data (110) representing images captured by an image generating sensing device (102) of the pair at a series of poses during motion through an environment (120) by transportable apparatus (100). The method obtains (202) data (112) representing a 3D point cloud based on data produced by a 2D LIDAR sensing device (104) of the pair. The method selects (204) an image captured by the image at a particular pose. The method generates (210) a laser reflectance image based on a portion of the point cloud corresponding to the pose. The method computes (212) a metric measuring alignment between the selected image and the corresponding laser reflectance image and uses (214) the metric to determine extrinsic calibration parameters for at least one of the sensing devices.

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Patent Owner(s)

Patent OwnerAddress
THE CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF OXFORDUNIVERSITY OFFICES WELLINGTON SQUARE OXFORD OXFORDSHIRE OX1 3PJ

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Napier, Ashley Alan Oxford, GB 2 61
Newman, Paul Michael Oxford, GB 13 398

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