Medical facial surface scanner

Michael W. Vannier M.D.; Gulab H. Bhatia; Paul K. Commean; Thomas K. Pilgram; Barry S. Brunsden

doi:10.1117/12.59497

1 May 1992 Medical facial surface scanner

Michael W. Vannier M.D., Gulab H. Bhatia, Paul K. Commean, Thomas K. Pilgram, Barry S. Brunsden

Proceedings Volume 1653, Medical Imaging VI: Image Capture, Formatting, and Display; (1992) https://doi.org/10.1117/12.59497
Event: Medical Imaging VI, 1992, Newport Beach, CA, United States

Abstract

Optical, non-contact three-dimensional range surface digitizers are employed in the 360-degree examination of object surfaces, especially the heads and faces of individuals. The resultant 3- D surface data is suitable for computer graphics display and manipulation, for numerically controlled object replications, or for further processing such as surface measurement extraction. We employed a scanner with a basic active sensor element consisting of a synchronized pattern projector employing flashtubes that illuminate a surface, with a CID camera to detect, digitize, and transmit the sequence of 24 images (per camera) to a digital image processor for surface triangulation, calibration, and fusion into a single surface description of the headform. A major feature of this unit is its use of multiple (typically 6) stationary active sensor elements, with efficient calibration algorithms that achieve nearly seamless superposition of overlapping surface segments seen by individual cameras. The result is accurate and complete coverage of complex contoured surfaces. Application of this system to digitization of the human head in the planning and evaluation of facial plastic surgery is presented.

Citation Download Citation

Michael W. Vannier M.D., Gulab H. Bhatia, Paul K. Commean, Thomas K. Pilgram, and Barry S. Brunsden "Medical facial surface scanner", Proc. SPIE 1653, Medical Imaging VI: Image Capture, Formatting, and Display, (1 May 1992); https://doi.org/10.1117/12.59497

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