Bilateral Estimation of Vertex Normal for Point-Sampled Models

Autor:	Jie Xu, Guofei Hu, Qunsheng Peng, Lanfang Miao
Rok vydání:	2005
Předmět:	Spacetime Computer science Polygon Feedback vertex set Vertex normal Topology Edge space ComputingMethodologies_COMPUTERGRAPHICS Rendering (computer graphics) Vertex (geometry) Scale space
Zdroj:	Computational Science and Its Applications – ICCSA 2005 ISBN: 9783540258605 ICCSA (1)
DOI:	10.1007/11424758_78
Popis:	Vertex normal is an essential surface attribute for point-based rendering and modelling. Based on scale space theory, we propose a bilateral vertex normal estimation algorithm for point-sampled models. We adaptively construct multiple local polygonal rings for each vertex after a multi-layer neighbor decomposition, the vertex normals are then computed by applying a bilateral estimation scheme on the multi-layer neighbors. A brief survey of vertex normal estimation on point-sampled surfaces is also presented in this paper, and the detailed comparisons of the different methods on theoretical basis, time and space complexity, applied environments, numerical implementations and effects with different initial conditions are analyzed.
Databáze:	OpenAIRE
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