Multiresolution description of range images through 2D quincunx wavelet analysis

Marc F. Toubin; Frederic Truchetet; Eric P. Verrecchia; Christophe Dumont; Mongi A. Abidi

doi:10.1117/12.342944

22 March 1999 Multiresolution description of range images through 2D quincunx wavelet analysis

Marc F. Toubin, Frederic Truchetet, Eric P. Verrecchia, Christophe Dumont, Mongi A. Abidi

Proceedings Volume 3723, Wavelet Applications VI; (1999) https://doi.org/10.1117/12.342944
Event: AeroSense '99, 1999, Orlando, FL, United States

Abstract

In this paper, we present a method for performing a multi- scale analysis on range images by using the wavelet transform, that is capable of revealing multi-resolution information. An accurate non-contact optical system based upon laser triangulation is used to determine the depth information of the object being scanned. The resulting range image is treated as a gray-level image by using a multi- resolution approach based on the generalization of the cascade algorithm using the quincunx wavelet transform. The quincunx wavelet assures very fine analysis. This method allows reconstruction of non-subsampled images that correspond to decompositions previously done at chosen scales. Multi-resolution details and approximation image are computed and the emphasis is on their 3D representation. A 3D mesh is created from the object envelope. Vertices relatives to details information at specific scales are color-coded so that a mesh reduction algorithm only reduces the amount of data corresponding to the object envelope. Thus, this paper proposes a method for extracting multi- resolution information contained in range images by using the quincunx wavelet analysis for the purpose of data reduction.

Citation Download Citation

Marc F. Toubin, Frederic Truchetet, Eric P. Verrecchia, Christophe Dumont, and Mongi A. Abidi "Multiresolution description of range images through 2D quincunx wavelet analysis", Proc. SPIE 3723, Wavelet Applications VI, (22 March 1999); https://doi.org/10.1117/12.342944

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