Wavelet-based hierarchical surface approximation from height fields

Sang-Mook Lee, A.L. Abbott, D.L. Schmoldt
Proceedings of the 2004 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2004. CVPR 2004.  
This paper presents a novel hierarchical approach to triangular mesh generation from height fields. A waveletbased multiresolution analysis technique is used to estimate local shape information at different levels of resolution. Using predefined templates at the coarsest level, the method constructs an initial triangulation in which underlying object shapes are well preserved. Wavelet detail coefficients directly control the selection of appropriate templates, and are then used for subdividing and refining the initial mesh.
doi:10.1109/cvpr.2004.1315046 fatcat:56gpve47s5dwveqgrhkllwmgdq