NDLI: Multi-scale surface representation of point-sampled geometry

Content Provider	IEEE Xplore Digital Library
Author	Zhang Dian-hua Yue Tian Chen Yong-hui
Copyright Year	2005
Description	Author affiliation: Dep. of Comput. Sci., Southwest Univ. of Sci. & Technol., Mianyang, China (Zhang Dian-hua; Yue Tian; Chen Yong-hui)
Abstract	With increasing complexity of 3D geometric models and growing demand for advanced modeling functionality, significant effort is being devoted to the design of efficient, reliable, and scalable algorithms for digital geometry processing. We introduce a multi-scale surface representation that enables sophisticated editing functionality at different approximation levels, using the concept of scale-space. The key issue is the interconnection between successive levels in the hierarchy. We use a fairing operator-a geometric low-pass filter to generate successively smoother approximation levels of a given input surface, and use a decomposition operator to encode each level relative to the next smoother level using normal displacements to ensure intuitive detail preservation. As a result, users can edit the surface at different approximation levels to perform coarse-scale edits on the whole model as well as very localized modifications on the surface detail.
Starting Page	371
Ending Page	376
File Size	388903
Page Count	6
File Format	PDF
ISBN	953184089X
ISSN	18455921
DOI	10.1109/ISPA.2005.195440
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-15
Publisher Place	Croatia
Access Restriction	Subscribed
Rights Holder	FACULTY OF ELECTRICAL ENGINEERING & COMP
Subject Keyword	Solid modeling Computational geometry Computer graphics Low pass filters Laplace equations Computer science Algorithm design and analysis Rendering (computer graphics) Large-scale systems Encoding
Content Type	Text
Resource Type	Article

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