filename     : p_Wey04a.pdf
entry        : inproceedings
conference   : Eurographics Symposium on Point-Based Graphics 2004, Zurich, Switzerland, June 2-4, 2004
pages        : 85--94
year         : 2004
month        : June
title        : Post-processing of Scanned 3D Surface Data
subtitle     :
author       : Tim Weyrich and Mark Pauly and Simon Heinzle and Richard Keiser and Sascha Scandella
booktitle    : Proceedings of Eurographics Symposium on Point-Based Graphics 2004
ISSN/ISBN    : ISSN 1811-7813 ISBN 3-905673-09-6
editor       : Marc Alexa and Szymon Rusinkiewicz 
publisher    : Eurographics Association
publ.place   : Aire-La-Ville, Switzerland
volume       :
issue        :
pages        :
language     : english
keywords     : Point-Based Graphics, Computational Geometry, Object Modeling
abstract     : 3D shape acquisition has become a major tool for creating digital 3D surface data in a variety of application fields. Despite the steady increase in accuracy, most available scanning techniques cause severe scanning artifacts such as noise, outliers, holes, or ghost geometry. To apply sophisticated modeling operations on these data sets, substantial post-processing is usually required. In this paper, we address a variety of scanning artifacts that are created by common optical scanners and provide a comprehensive set of user-guided tools to process corrupted data sets. These include an eraser tool, low-pass filters for noise removal, a set of outlier detection methods, and various up-sampling and hole-filling tools. These techniques can be applied early in the content creation pipeline. Therefore, all our tools are implemented to operate directly on the acquired point cloud. We also emphasize the need for extensive user control and an efficient visual feedback loop. The effectiveness of our scan cleaning tools is demonstrated on various models acquired with commercial laser-range scanners and low-cost structured light scanners.