Multi-resolution analysis of grid point clouds based on wavelet transform

Author

Xuejuan, Niu ; Jingtai, Liu ; Lei, Sun

Author_Institution

Inst. of Robot.&Autom. Inf. Syst., Tianjin

fYear

2008

fDate

16-18 July 2008

Firstpage

341

Lastpage

345

Abstract

An application of classical wavelet in the realization of the multi-resolution analysis of point cloud is presented in this paper. Firstly, a proper wavelet function and the expending method are determined by analyzing the character of grid point cloud. With the theory of discrete wavelet transform (DWT), the multi-level wavelet decomposition is realized. Based on the band-pass filter property of the wavelet function, the high frequency information in the point cloud is removed, and the low frequency part is reserved. And then the multi-level of detail and multi-resolution models are generated, which are the simplifications of the original point cloud. Finally, the feasibility and the efficiency are proved by a study case.

Keywords

band-pass filters; image resolution; wavelet transforms; band-pass filter; discrete wavelet transform; grid point clouds; multilevel wavelet decomposition; multiresolution analysis; Clouds; Control systems; Discrete wavelet transforms; Frequency; Information analysis; Multiresolution analysis; Robotics and automation; Sun; Wavelet analysis; Wavelet transforms; Grid point clouds; Multi-resolution analysis (MRA); Wavelet transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Conference, 2008. CCC 2008. 27th Chinese

Conference_Location

Kunming

Print_ISBN

978-7-900719-70-6

Electronic_ISBN

978-7-900719-70-6

Type

conf

DOI

10.1109/CHICC.2008.4605516

Filename

4605516