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Proceedings Paper

Curvature sampling of 3-D objects in medical images
Author(s): Shang You Wu; Ernest M. Stokely
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Paper Abstract

The measurement of the local curvature of arbitrary discrete 3-D medical images is complicated by the difficulties of defining a local neighborhood and then mapping the surface of the neighborhood onto the unit square as a way to unambiguously define a parameterization. Five practical methods are presented for deriving one or more measures of curvature about a point on an arbitrary discretized surface. The first 3 methods approximate the surface patch using continuous biquadratics while the next 2 methods obtain the curvature directly from the discrete data points on the surface which define the neighborhood. The 5 methods are compared in computational complexity accuracy and robustness in the presence of a noisy surface. 1.

Paper Details

Date Published: 1 July 1990
PDF: 12 pages
Proc. SPIE 1233, Medical Imaging IV: Image Processing, (1 July 1990); doi: 10.1117/12.18892
Show Author Affiliations
Shang You Wu, Univ. of Texas Southwestern Medical Ctr. (United States)
Ernest M. Stokely, Univ. of Texas/Arlington (United States)

Published in SPIE Proceedings Vol. 1233:
Medical Imaging IV: Image Processing
Murray H. Loew, Editor(s)

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