Vehicle sensor calibration and localization
US10983199B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2017 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Dec 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/024
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Perception sensors of a vehicle can be used for various operating functions of the vehicle. A computing device may receive sensor data from the perception sensors, and may calibrate the perception sensors using the sensor data, to enable effective operation of the vehicle. To calibrate the sensors, the computing device may project the sensor data into a voxel space, and determine a voxel score comprising an occupancy score and a residual value for each voxel. The computing device may then adjust an estimated position and/or orientation of the sensors, and associated sensor data, from at least one perception sensor to minimize the voxel score. The computing device may calibrate the sensor using the adjustments corresponding to the minimized voxel score. Additionally, the computing device may be configured to calculate an error in a position associated with the vehicle by calibrating data corresponding to a same point captured at different times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.