F. Sadlo, T. Weyrich, R. Peikert, M. Gross:

A Practical Structured Light Acquisition System for Point-Based Geometry and Texture

In Proceedings of the Eurographics/IEEE VGTC Symposium on Point-Based Graphics, pp. 89–98, 2005.

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.

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