| X-Ray Metrology for Quality Assurance (2002) | |||||||||||||||
Abstract | |||||||||||||||
| There is considerable currentinterest in deriving accurate dimensional measurements of the internal geometry of complex manufactured parts, particularly castings. This paper describes an approachtothereconstruction of 3D part geometry from multiple digital X-ray images. A novel method for radiographic stereo is described whichtakes into accountthespecial imaging geometry of the digital X-ray sensor modeled by a linear moving array, or pushbroom, camera. The 3D reconstruction algorithm employs a nominal geometric model which is perturbed by X-rayimage constraints. Manufacturing applications are discussed and illustrated by experimental results on synthetic phantoms and actual casting images. | |||||||||||||||
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