Calibration device and calibration method for range image sensor
US7822571B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 2009 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Mar 1, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A calibration device for calibrating a range image sensor, detecting a distance of each direction within a detection range and generating a range image data, in a state where the range image sensor is attached at a mobile body, the calibration device includes a data receiving portion for receiving a calibration-subject data including a calibration target, which is set within the detection range and includes a first plane surface and a second plane surface, from the range image sensor, a plane surface specifying portion for specifying each of the first and second plane surfaces in a three-dimensional reference coordinate system, a normal vector calculating portion for three-dimensionally calculating a normal vector of each of the first and second plane surfaces, and a rotation calculating portion for three-dimensionally calculating a rotation of the range image sensor on the basis of an already-recognized posture information and the normal vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.