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Hierarchical representation of wavelet in reverse engineering

LI Yiling, JI Yubo, WANG Jianbin(School of Computer & Communication Eng., Liaoning Univ. of Petroleum & Chemical Tech., Fushun Liaoning 113001, China)  
With too much data storage and calculation in free curves remodeling of reverse engineering, the hierarchical representation of wavelet is applied to reduce the amount of controlling vertexes on quasi-uniform B-spline curves, and make compressed curves reflect original curves’ approximate shape. The experiment shows that the method implements hierarchical compressing curves, simplifies data processing, reduces remodeling cost, and adapts to engineering demand.
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