DocumentCode :
1847789
Title :
Conversion of point-sampled models to textured meshes
Author :
Wicke, Martin ; Olibet, Sandro ; Gross, Markus
Author_Institution :
Eidgenossische Tech. Hochschule, Zurich, Switzerland
fYear :
2005
fDate :
20-21 June 2005
Firstpage :
119
Lastpage :
147
Abstract :
We present an algorithm to convert point-sampled objects to textured meshes. The output mesh carries the geometric information present in the input model, while information about color and other surface attributes is separated and stored in textures. The point cloud is triangulated and decimated so it adequately represents the object geometry. Using EWA splatting, we compute textures patches for all triangles in the mesh. In an iterative process, the size of the texture patches is chosen adaptively such that texture information is preserved during the conversion. The texture filtering capabilities of EWA splatting ensure that no texture aliasing occurs. Finally, the texture patches are compiled into a texture atlas. Aside from colors, other surface attributes can be treated similarly. Normal maps can be computed to allow for further simplification of the output mesh while maintaining high visual quality.
Keywords :
computational geometry; image sampling; image texture; mesh generation; ray tracing; rendering (computer graphics); EWA splatting; object geometry; point-sampled object; texture filtering; textured mesh; Clouds; Error correction; Filtering; Geometry; Sampling methods; Size control; Solid modeling; Surface cleaning; Surface texture; Surface treatment;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Point-Based Graphics, 2005. Eurographics/IEEE VGTC Symposium Proceedings
ISSN :
1511-7813
Print_ISBN :
3-905673-20-7
Type :
conf
DOI :
10.1109/PBG.2005.194072
Filename :
1500326
Link To Document :
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