Three-dimensional interferometric measuring method allows evaluation of depth information for interesting area of camera image selected via defined criteria

摘要

The interferometric measuring method scans the measured object (1.2) in the depth direction using the variation in the length of a light path in a reference arm (1.8) relative to the length of a light path in an object arm (1.7), the surface shape of the object determined using a camera (2) coupled to an image processor (3). The latter is used for selecting an interesting area within the overall 2-dimensional image provided by the camera, in dependence on defined criteria, with evaluation of the depth information solely for the selected area. An Independent claim for a 3-dimensional interferometric measuring device is also included.