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Selected Readings in Vision and Graphics
edited by Luc Van Gool, Gábor Székely, Markus Gross, Bernt Schiele
Volume 23
Mark Pauly
Point Primitives for Interactive Modeling
and Processing of 3D Geometry.
First edition 2003, 164 pages, € 64,00.
ISBN 3-89649-875-4
This thesis investigates
the use of point primitives for 3D geometry processing and interactive
modeling. Representing surfaces by point clouds allows direct processing of 3D
scanner data, which avoids the need for surface reconstruction methods. The
structural simplicity of point-based representations supports efficient
re-sampling for extreme geometric deformations and topology changes. It also
leads to concise algorithms that are well suited for hardware implementation.
The main focus of this thesis is on algorithms for shape and appearance
modeling of surfaces represented by point clouds. This requires methods for
local surface analysis and reconstruction, filtering, re-sampling, and
estimation of the signed distance function. Local surface analysis is based on
a statistical operator applied to local neighborhoods of point samples. This
enables efficient estimation of the tangent space of the underlying surface, as
well as providing different approximations for surface curvature. To reduce the
complexity of point-sampled surfaces, various simplification methods are
presented, including clustering, iterative point-pair contraction, and particle
simulation. A multi-scale surface representation is introduced that enables
sophisticated editing functionality at different approximation levels. Representing a point-sampled surface at different levels of
geometric detail supports advanced filtering methods such as enhancement
filters. Multi-scale methods are also applied to implement a feature
extraction pipeline for point-sampled surfaces. The above methods are
integrated into a unified framework for point-based shape and appearance
modeling. Shape modeling functionality includes boolean operations and free-form deformation,
appearance editing comprises painting, texturing, sculpting, and filtering
methods. Based on a dynamic sampling paradigm, this system defines a complete
and versatile modeling environment for 3D content creation.
About th
Author:
Mark Pauly
received his MSc degree in Computer Science (Dipl. Inf.) from the University of
Kaiserlautern, Germany, in 1999. From 2000 to 2003,
he has been a PhD student of the European Graduate
Program 'Combinatorics, Geometry, and Computation' at the Swiss Federal
Institute of Technology (ETH) Zurich, Switzerland. During this time, he worked
at the Computer Graphics Laboratory on point-based representations for
interactive modeling and processing of 3D geometry. After completing his PhD in
Computer Science in 2003, he joined Stanford University as a Postdoctoral
Scholar.
Reihe " Selected Readings in Vision and
Graphics " im Hartung-Gorre Verlag
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