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AssigneeMicrosoft Technology Licensing, LLC
InventorsArnold Irschara, Gerald Schweighofer, Konrad Karner, Richard Ladstädter, Martin Ponticelli
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Mobile platforms are used to capture an area using a variety of sensors (e.g., cameras and laser scanners) while traveling through the area, in order to create a representation (e.g., a navigable set of panoramic images, or a three-dimensional reconstruction). However, such sensors are often precisely calibrated in a controlled setting, and miscalibration during travel (e.g., due to a physical jolt) may result in a corruption of data and/or a recalibration that leaves the platform out of service for an extended duration. Presented herein are techniques for verifying sensor calibration during travel. Such techniques involve the identification of a sensor path for each sensor over time (e.g., a laser scanner path, a camera path, and a location sensor path) and a comparison of the paths, optionally after registration with a static coordinate system, to verify that the continued calibration of the sensors during the mobile operation of the platform.
A system for calibrating at least one sensor of a platform traveling through an area and comprising a camera, a laser scanner, and a location sensor, the system comprising:
A computer-readable storage device comprising instructions that, when executed on a processor of a platform traveling through an area and comprising a camera, a laser scanner, and a location sensor, calibrate at least one sensor of the platform by:
A method of calibrating at least one sensor of a platform traveling through an area and comprising a camera, a laser scanner, and a location sensor, the method comprising:
Dependencies are inferred from the claim text.