Method for optical measurement of three-dimensional coordinates and calibration of a three-dimensional measuring device

摘要

A method is provided for scanning and obtaining three-dimensional (3D) coordinates. The method includes providing a 3D measurement device having a projector, a first camera, and a second camera. The method records an image of a pattern of light projected onto an object by a projector. A deviation of the measured parameter from the predicted parameter is determined. When the deviation is outside the predetermined threshold range, the calibration of the 3D measurement device can be changed.