filename : was05.pdf entry : article conference : Pacific Graphics 2005, October 12-14, Macao, China, 2005 pages : 629-638 year : 2005 month : September title : Scalable 3D Video of Dynamic Scenes subtitle : author : Michael Waschbüsch, Stephan Würmlin, Daniel Cotting, Filip Sadlo, Markus Gross booktitle : The Visual Computer (Special Issues for Pacific Graphics 2005) ISSN/ISBN : 0178-2789 editor : Prof. Wu publisher : Springer, Alfred Hofmann publ.place : Tiergartenstr. 17, 69121 Heidelberg, Germany volume : 21 issue : 8-10 language : english keywords : 3D Video, Free-Viewpoint Video, Scene Acquisition, Point-Based Graphics 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 spatio-temporal effects.