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Application of multi band wavelet on simplifying DEM with lose of feature information

Wan Gang ①② , Zhu Changqing ①② (① Zhengzhou Institute of Surveying and Mapping,Zhengzhou,450052) (② State Key Laboratory of CAD & CG, Zhejiang University, Hangzhou, 310027)  
Multi band wavelet is a new branch of developing wavelet theory in recent years.This article focuses on the basic methods of multi band wavelet analysis and its merits compared with binary band wavelet. A technique for compressing and simplifying DEM with multi band wavelet is provided, and the experiment proves an ideal result.
【CateGory Index】: TP391.9
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