NDLI: Multi-resolution modeling and locally refined collision detection for haptic interaction

Content Provider	IEEE Xplore Digital Library
Author	Peiran Liu Xiaojun Shen Georganas, N. Roth, G.
Copyright Year	2005
Description	Author affiliation: Ottawa Univ., Ont., Canada (Peiran Liu; Xiaojun Shen; Georganas, N.)
Abstract	The computational cost of a collision detection (CD) algorithm on polygonal surfaces depends highly on the complexity of the models. A novel "locally refined" approach is introduced in this paper for fast CD in haptic rendering applications, e.g. haptic surgery and haptic sculpture simulations. Exact interference detections are performed on proposed locally refined meshes, which are in multiresolution representation. The meshes are generated using mesh simplification and space partition. A new BVH algorithm called "active bounding tree", or AB-tree, handling collision queries is introduced. At runtime the meshes are dynamically refined to higher resolution in areas that are most likely to collide with other objects. The algorithms are successfully demonstrated in an interactive haptic environment. Compared to existing CD algorithms on single resolution models, noticeable performance improvement has been observed in terms of the precision of collision queries, frame rate, and memory usage.
Starting Page	581
Ending Page	588
File Size	183319
Page Count	8
File Format	PDF
ISBN	0769523277
ISSN	15506185
DOI	10.1109/3DIM.2005.58
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-13
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Haptic interfaces Operating systems Virtual environment Real time systems Context modeling Distributed computing Surgery Partitioning algorithms Auditory displays Robotic assembly
Content Type	Text
Resource Type	Article

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