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|Title:||Video-Based Rendering Of Traffic Sequences||Authors:||VANAKEN, Cedric
|Issue Date:||2006||Publisher:||UNIV WEST BOHEMIA||Source:||Jorge, J; Skala, V (Ed.) WSCG 2006: FULL PAPERS PROCEEDINGS - 14TH INTERNATIONAL CONFERENCE IN CENTRAL EUROPE ON COMPUTER GRAPHICS, VISUALIZATION AND COMPUTER VISION 2006. p. 161-167.||Abstract:||Video-based rendering is a viable alternative to traditional realistic image synthesis techniques. It avoids the burden of time-consuming modeling and expensive global illumination simulation. In this paper we propose a video-based synthesis and animation system for fixed viewpoint scenes that feature rigid objects. We examplify this by using traffic video sequences. In a first stage, we extract vehicles and their trajectories from the example footage using an intuitive semi-automatic segmentation technique. Subsequently, the resulting vehicle "sprites" are dimensionally reduced using PCA in order to effectively extrapolate trajectories from incomplete sequences. Background, occlusions and shadows cast by vehicles are extracted as well. We show that convincing new footage can be synthesized readily from a single input video. Any number and variety of cars can be inserted, and their trajectories can be edited to simulate such traffic scenarios as lane changes and traffic jams.||Notes:||[Vanaken, Cedric] Hasselt Univ, Expertise Ctr Digital Media & Transnatl, B-3590 Diepenbeek, Belgium.||Keywords:||Video-based Rendering; Animation; Traffic; Video Sprites||Document URI:||http://hdl.handle.net/1942/11062||ISI #:||000277056000023||Category:||C1||Type:||Proceedings Paper||Validations:||ecoom 2011|
|Appears in Collections:||Research publications|
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