Mapping non-destructive testing data on the 3D geometry of objects with complex shapes

This paper presents an approach for measuring the geometry of objects with complex shapes with a 3D camera and, at the same time, collecting surface and subsurface information that is then mapped onto the geometry in good spatial alignment. Subsurface information can be captured with infrared thermography or ultrasonic probes. The approach can thus allow non-destructive testing procedures to be used for detecting, locating and measuring the size, shape and depth of undersurface defects of an object and to map these defects, and potentially other information such as reflectance or color, onto the geometric model of the object.