Patent ID: 9215453
Filing Date: 2015-12-15
Classification: G01B,G01C,G06T,H04N

Abstract:
1. A method for calibrating a measurement system, the measurement system including at least one image recording apparatus having at least two measurement cameras that form a stereo camera system, and an analysis unit configured to receive stereo image data from the at least one image recording apparatus and generate measurement data regarding a vehicle, the method comprising: using an image recording camera of a calibration device to determine 3D coordinates of a plurality of reference features positioned in a measurement space of the calibration device; positioning the at least one image recording apparatus in the measurement space of the calibration device; capturing stereo image data through the at least one image recording apparatus of the measurement system, the stereo image data including image data of the plurality of reference features positioned in the measurement space of the calibration device; and processing the stereo image data to determine 3D coordinates of the at least one image recording apparatus in a common 3D coordinate system with the determined 3D coordinates of the plurality of reference features based at least in part on the determined 3D coordinates of the plurality of reference features of the calibration device.