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Touch-Based
Haptics for Interactive Editing on Point Set Surfaces |
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Project
Members |
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Xiaohu
Guo, Jing
Hua, Hong
Qin |
Center
for Visual Computing
Department
of Computer Science
State
University of New York at Stony Brook |
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Abstract: |
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We
present a unique modeling paradigm for haptics-based editing on
point set surfaces. In essence, the proposed technique leads to
a novel methodology that collectively takes advantages of the
potential of implicit surfaces, the strength of physics-based
modeling techniques, the simplicity of point sampled surfaces,
and the realm of haptic feedback. In particular, the point set
surface in our system is evaluated as the zero set of the weighted
sum of a collection of scalar trivariate B-spline functions defined
over the local domain associated with each point sample. Among
many other attractive properties, this novel implicit representation
of the point set surfaces specifically enables users to easily
modify the topology of the sculpted objects. Further integrating
haptics with the inherent physics of our dynamic point set surfaces
leads to an intuitive, efficient, and powerful 3D shape design
framework directly founded upon point-set geometry. We have developed
a variety of surface editing toolkits that can dynamically manipulate
the implicit point set surface by sculpting and painting with
haptics, and easily perform CSG boolean operations on arbitrarily
shaped objects. Our research work greatly enhances the existing
point rendering and modeling techniques with natural, yet efficient
haptics sculpting, deformation, and painting. |
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Keywords:
Point
Set Surface, Trivariate B-spline, Dynamic Volumetric Models, Interaction
Techniques, Haptic Interface |
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Screenshots: |
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Publication: |
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- Xiaohu
Guo, Jing Hua, Hong Qin, "Touch-Based
Haptics for Interactive Editing on Point Set Surfaces",
in IEEE Computer Graphics and Applications, Vol. 24, No. 6,
pp. 31 - 39, 2004.
- Xiaohu
Guo, Hong Qin, "Dynamic
Sculpting and Deformation of Point Set Surfaces",
in Proceedings of Pacific Graphics, pp. 123 - 130, 2003.
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