Title :
Bi-cubic spline fitting and display of tooth external surface and canal
Author :
Pao, Y.C. ; Qin, Pei-Yuan ; Yuan, Qi-Sun
Author_Institution :
Dept. of Eng. Mech., Nebraska Univ., Lincoln, NE, USA
Abstract :
The use of the bicubic-spline curve-fitting technique to derive mathematical expressions for describing the cross-sectional and longitudinal shapes of an upper front tooth, based on crown-to-root cross-sectional data obtained by X-ray scanning is reported. For three-dimensional display of the fitted surfaces, a technique for fast removal of the hidden surfaces is also reported. The mathematical expressions derived facilitate the construction of an artificial tooth
Keywords :
diagnostic radiography; picture processing; splines (mathematics); 3D display; X-ray scanning; artificial tooth construction; cross-sectional shape; crown-to-root cross-sectional data; hidden surfaces removal; longitudinal shape; upper front tooth; Biomedical imaging; Displays; Image reconstruction; Interpolation; Irrigation; Shape; Spline; Surface fitting; Surface reconstruction; Teeth;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96535
