Method to determine shape of object; involves arranging several optical 3D sensors in fixed arrangement, and using them to simultaneously image calibration object to define common co-ordinate system

摘要

The method involves arranging optical 3D sensors in a fixed arrangement, directed onto a measurement volume from different sides. The sensors are simultaneously calibrated using one or more calibration bodies having textures or geometric marks, which are imaged by the sensors, and whose positions are calculated. A common co-ordinate system for all the sensors is defined by simultaneously imaging the calibration bodies with all the sensors. An Independent claim is included for a device for implementing the method.