Computational Photography

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M. Waschbüsch, S. Würmlin, D. Cotting, F. Sadlo, M. Gross:

Scalable 3D Video of Dynamic Scenes

The Visual Computer, vol. 21, no. 8–10, pp. 629–638, 2005.

Abstract

In this paper we present a scalable 3D video framework for capturing and rendering dynamic scenes. The acquisition system is based on multiple sparsely placed 3D video bricks, each comprising a projector, two grayscale cameras, and a color camera. Relying on structured light with complementary patterns, texture images and pattern-augmented views of the scene are acquired simultaneously by time-multiplexed projections and synchronized camera exposures. Using space-time stereo on the acquired pattern images, high-quality depth maps are extracted, whose corresponding surface samples are merged into a view-independent, point-based 3D data structure. This representation allows for effective photo-consistency enforcement and outlier removal, leading to a significant decrease of visual artifacts and a high resulting rendering quality using EWA volume splatting. Our framework and its view-independent representation allow for simple and straightforward editing of 3D video. In order to demonstrate its flexibility, we show compositing techniques and spatiotemporal effects.

Available Files

[BibTeX] [DOI] [PDF]


Publications

2011
Reviewed Conference Papers
F. Sadlo, C. Dachsbacher:
Auto-Tilt Photography
In Proceedings of International Workshop on Vision, Modeling and Visualization (VMV), pp. 239–246, 2011.
Available files: [BibTeX] [DOI] [PDF] [Details]

2007
Book Chapters and Other Publications
F. Sadlo, T. Weyrich, R. Peikert, M. Gross:
A Practical Low-Cost Scanner for Geometry and Appearance
In Point-Based Graphics, Elsevier, pp. 49–66, 2007.
Available files: [BibTeX] [URL]

2005
Reviewed Journal Papers
M. Waschbüsch, S. Würmlin, D. Cotting, F. Sadlo, M. Gross:
Scalable 3D Video of Dynamic Scenes
The Visual Computer, vol. 21, no. 8–10, pp. 629–638, 2005.
Available files: [BibTeX] [DOI] [PDF] [Details]

Reviewed Conference Papers
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.
Available files: [BibTeX] [DOI] [PDF] [Details]