Proceedings ArticleDOI
High-speed active 3D acquisition based on a pattern-specific mesh
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TLDR
This paper presents a high-speed, single shot range scanner based on classical triangulation, facilitated by structured light, which is amenable to real-time processing and the pattern detection and the camera and projector calibration.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.read more
Citations
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Journal ArticleDOI
Real-time range acquisition by adaptive structured light
Thomas Koninckx,L. Van Gool +1 more
TL;DR: A weighted combination of different coding cues - based upon pattern color, geometry, and tracking - yields a robust way to solve the correspondence problem and renders the system more robust against instant scene variability and creates suitable patterns at startup.
Proceedings ArticleDOI
Real-time range scanning of deformable surfaces by adaptively coded structured light
TL;DR: A new active range scanning technique suitable for moving or deformable surfaces, in that 3D data are acquired from a single image, using a 'one-shot' system that poses a weak temporal continuity constraint.
Journal ArticleDOI
Recent Developments in 3D Multi-modal Laser Imaging Applied to Cultural Heritage
TL;DR: This paper proposes a novel multi-modal three-dimensional laser scanning system that combines high-accuracy 3D laser imaging, very high-resolution perspective color projection, and on-site geometric calibration of the intrinsic and extrinsic parameters.
Proceedings ArticleDOI
A graph cut based adaptive structured light approach for real-time range acquisition
TL;DR: A new algorithm that yields dense range maps in real-time based on a single frame structured light illumination that is more robust against scene variability and an estimation of the uncertainty is provided for each part of the reconstruction.
Online 3D acquisition and model integration
TL;DR: This paper presents a system which yields complete 3D models in a fast and inexpensive way using a high-speed structured light range scanner and a registration module that performs a fast registration and renders the partially integrated model as a preview of the final result.
References
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Proceedings ArticleDOI
Handling occlusions in dense multi-view stereo
TL;DR: Experimental results show a dramatic improvement using the first idea over conventional multibaseline stereo, especially when used in conjunction with a global energy minimization technique, and show that explicit occlusion labeling and visibility reasoning do help, but not significantly, if the spatial and temporal selection is applied first.
Proceedings ArticleDOI
Towards accurate recovery of shape from shading under diffuse lighting
A.J. Stewart,Michael S. Langer +1 more
TL;DR: A surface radiance model for diffuse lighting that incorporates shadows, interreflections, and surface orientation is presented and it is shown that, for smooth surfaces, the model is an excellent approximation of the radiosity equation.