Integrated fiducial marker for simultaneously calibrating sensors of different types
AssigneePlusAI, Inc.
InventorHuan Yang CHANG
Life of this patent
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Abstract
The present teaching relates to different configurations for facilitating calibration of multiple sensors of different types. A plurality of fiducial markers are arranged in space for simultaneously calibrating multiple sensors of different types. Each of the plurality of fiducial markers has a feature point thereon and is provided to enable the multiple sensors to calibrate by detecting the features points and estimating their corresponding 3D coordinates with respect to respective coordinate systems of the multiple sensors.
Claims20
A computer-implemented method comprising:
- determining, by a computing system, a location of a marker based on a GPS signal associated with the marker;
- calibrating, by the computing system, a visual based sensor based on a visual identification of a feature point on the marker and the location of the marker;
- and
- calibrating, by the computing system, a depth based sensor based on a depth measurement of the feature point on the marker.
A system comprising:
- at least one processor;
- and
- a memory storing instructions that, when executed by the at least one processor, cause the system to perform operations comprising:
- determining a location of a marker based on a GPS signal associated with the marker;
- calibrating a visual based sensor based on a visual identification of a feature point on the marker and the location of the marker;
- and
- calibrating a depth based sensor based on a depth measurement of the feature point on the marker.
A non-transitory computer-readable storage medium including instructions that, when executed by at least on processor of a computing system, cause the computing system to perform:
- determining a location of a marker based on a GPS signal associated with the marker;
- calibrating a visual based sensor based on a visual identification of a feature point on the marker and the location of the marker;
- and
- calibrating a depth based sensor based on a depth measurement of the feature point on the marker.
Dependencies are inferred from the claim text.