Multi-Chart Geometry Images

Sander, P. V.; Wood, Z. J.; Gortler, S. J.; Snyder, J.; Hoppe, H.

Multi-Chart Geometry Images

Files

146-155.pdf (26.98 MB)

Date

2003

Authors

Sander, P. V.
Wood, Z. J.
Gortler, S. J.
Snyder, J.
Hoppe, H.

Publisher

The Eurographics Association

Abstract

We introduce multi-chart geometry images, a new representation for arbitrary surfaces. It is created by resampling a surface onto a regular 2D grid. Whereas the original scheme of Gu et al. maps the entire surface onto a single square, we use an atlas construction to map the surface piecewise onto charts of arbitrary shape. We demonstrate that this added flexibility reduces parametrization distortion and thus provides greater geometric fidelity, particularly for shapes with long extremities, high genus, or disconnected components. Traditional atlas constructions suffer from discontinuous reconstruction across chart boundaries, which in our context create unacceptable surface cracks. Our solution is a novel zippering algorithm that creates a watertight surface. In addition, we present a new atlas chartification scheme based on clustering optimization.

        @inproceedings{10.2312:SGP/SGP03/146-155
,
booktitle = {Eurographics Symposium on Geometry Processing
},
editor = {Leif Kobbelt and Peter Schroeder and Hugues Hoppe
},
title = {{Multi-Chart Geometry Images
}},
author = {Sander, P. V. and 
Wood, Z. J. and 
Gortler, S. J. and 
Snyder, J. and 
Hoppe, H.
},
year = {2003
},
publisher = {The Eurographics Association
},
ISSN = {1727-8384
},
ISBN = {3-905673-06-1
},
DOI = {10.2312/SGP/SGP03/146-155
}
}