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Author Gang Zhao ♦ Shuhong Xu ♦ Weishi Li
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2003
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Subject Keyword Spline ♦ Energy resolution ♦ Shape control ♦ Shape measurement ♦ Deformable models ♦ Acceleration ♦ Iterative methods ♦ Distortion measurement ♦ Energy measurement ♦ Frequency
Abstract Multiresolution models provide a powerful tool for complex shape multiresolution editing. However, it is still hard and not intuitive to modify the overall shape of a model while preserving its details by manipulating its control points at lower resolution levels. A better control of deformations and a more intuitive interface should allow the user to control the deformation of a model by manipulating the model directly. This can be achieved by using variational modeling techniques. This paper presents a variational framework for multiresolution model design. The modeled shape is represented as a multiresolution B-spline curve or surface, which can be interactively deformed by direct user inputs. The focus of this paper is on handling multiresolution constraints and preserving surface details throughout the deformation process. To avoid smoothing out the details of the shape in variational modeling, we optimize the deformation energy alone instead of the total energy of the deformed shape. To accelerate the convergence of the iterative energy minimization process, a wavelet-based iterative method is used to compute the solution in a hierarchical fashion.
Description Author affiliation: Inst. of High Performance Comput., Singapore (Gang Zhao; Shuhong Xu; Weishi Li)
ISBN 0769519229
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2003-12-05
Publisher Place Singapore
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 395.30 kB
Page Count 8
Starting Page 206
Ending Page 213

Source: IEEE Xplore Digital Library