10 January 2003 High-speed active 3D acquisition based on a pattern-specific mesh
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Proceedings Volume 5013, Videometrics VII; (2003); doi: 10.1117/12.476167
Event: Electronic Imaging 2003, 2003, Santa Clara, CA, United States
Abstract
This paper presents a high-speed, single shot range scanner. The depth acquisition is based on classical triangulation, facilitated by structured light. The projection pattern consists of equidistant vertical stripes. The major contribution of our research is that this setup is amenable to real-time processing. Both from an algorithmic and an implementation point of view, the speed constraint is taken into account. The paper discusses both the pattern detection and the camera and projector calibration. The subpixel accurate detection, which is the main computational problem, is implemented as a two-stage algorithm. An initialization procedure yields the rough contours. Subpixel accuracy is reached through an iterative relaxation process. A consistent labeling is assigned based on belief propagation.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thomas P. Koninckx, Luc J. Van Gool, "High-speed active 3D acquisition based on a pattern-specific mesh", Proc. SPIE 5013, Videometrics VII, (10 January 2003); doi: 10.1117/12.476167; https://doi.org/10.1117/12.476167
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KEYWORDS
Cameras

Calibration

Projection systems

3D acquisition

Structured light

Detection and tracking algorithms

Distortion

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