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Proceedings Paper

3D curvilinear lattice as a tool for representing free-form surfaces
Author(s): Feng Lin; Seah Hock Soon; Lee Yong Tsui; Chong Man Nang; Daniel H. Tan; David Flyn; Peter Mack
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Paper Abstract

Various tomographic imaging systems start data processing with a series of 2D images acquired from the target objects. To describe the geometry of complex structures, such as in biomechanical and orthopaedic investigation, we need methods to reconstruct 3D surface boundaries of the objects from 2D contours in the images. Of primary importance is an effective and efficient data structure for representing these free-form surfaces. This paper presents a representation scheme for free-form surface patch by a 3D curvilinear lattice. Coupled with the Marching Cubes algorithm, the new data structure provides a uniform representation for different types of surfaces and its output can be visualized using a normal graphic renderer. The method considerably reduces memory required for boundary generation compared to the conventional way where iso-surfaces are evaluated from a volume. It also speeds up the surface rendering procedure by the reduction of surface triangulation. We illustrate its abilities in handling surfaces with different topological structures.

Paper Details

Date Published: 7 April 1995
PDF: 11 pages
Proc. SPIE 2410, Visual Data Exploration and Analysis II, (7 April 1995); doi: 10.1117/12.205982
Show Author Affiliations
Feng Lin, Nanyang Technological Univ. (Singapore)
Seah Hock Soon, Nanyang Technological Univ. (Singapore)
Lee Yong Tsui, Nanyang Technological Univ. (Singapore)
Chong Man Nang, Nanyang Technological Univ. (Singapore)
Daniel H. Tan, Nanyang Technological Univ. (Singapore)
David Flyn, Nanyang Technological Univ. (Singapore)
Peter Mack, Singapore General Hospital (Singapore)

Published in SPIE Proceedings Vol. 2410:
Visual Data Exploration and Analysis II
Richard N. Ellson; Georges G. Grinstein; Robert F. Erbacher, Editor(s)

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