TY - GEN
T1 - Medical facial surface scanner
AU - Vannier, Michael W.M.D.
AU - Bhatia, Gulab
AU - Commean, Paul K.
AU - Pilgram, Tom
AU - Brunsden, Barry
PY - 1992
Y1 - 1992
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0026971822&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0026971822
SN - 0819408050
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 177
EP - 184
BT - Proceedings of SPIE - The International Society for Optical Engineering
PB - Publ by Int Soc for Optical Engineering
T2 - Medical Imaging VI: Image Capture, Formatting, and Display
Y2 - 23 February 1992 through 24 February 1992
ER -