filename     : p_Sad05.pdf
entry        : inproceedings
conference   : Eurographics Symposium on Point-Based Graphics, Stony Brook, New York, USA, June 21-22, 2005
pages        : 89-98
year         : 2005
month        : June
title        : A Practical Structured Light Acquisition System for Point-Based Geometry and Texture
subtitle     :
author       : Filip Sadlo, Tim Weyrich, Ronald Peikert, Markus Gross
booktitle    : Proceedings of the Eurographics Symposium on Point-Based Graphics '05
ISSN/ISBN    : 1811-7813 / 3-905673-20-7
editor       : Mark Pauly, Matthias Zwicker
publisher    : Eurographics Association
publ.place   : USA
volume       :
issue        :
language     : English
keywords     : Scanning
abstract     : We present a simple and high-quality 3D scanning system based on structured light. It uses the common setup of a video projector, a computer-controlled turntable and a single camera. Geometry is acquired using a combination of Gray code and phase-shift projections, and it is stored and processed in a point-based representation. We achieve high accuracy by careful calibration of camera, projector, and turntable axis. In addition, we make use of the projector's calibration and extend it to a calibrated light source, allowing for a simple reconstruction of material properties for each surface point. We alternatively use a Lambertian reflectance model, or fit a Phong reflectance model to the samples under different turntable orientations. The acquisition pipeline is entirely point-based, avoiding the need of triangulation during all processing stages.