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
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