%0 Conference Paper
%B Multimedia and Expo, 2003. ICME '03. Proceedings. 2003 International Conference on
%D 2003
%T Video based rendering of planar dynamic scenes
%A Kale, A.
%A Chowdhury, A.K.R.
%A Chellapa, Rama
%K (computer
%K 3D
%K analysis;
%K approximation;
%K based
%K camera;
%K cameras;
%K direction;
%K dynamic
%K graphics);
%K image
%K monocular
%K MOTION
%K perspective
%K planar
%K processing;
%K rendering
%K rendering;
%K scenes;
%K sequence;
%K sequences;
%K signal
%K video
%K weak
%X In this paper, we propose a method to synthesize arbitrary views of a planar scene from a monocular video sequence of it. The 3-D direction of motion of the object is robustly estimated from the video sequence. Given this direction any other view of the object can be synthesized through a perspective projection approach, under assumptions of planarity. If the distance of the object from the camera is large, a planar approximation is reasonable even for non-planar scenes. Such a method has many important applications, one of them being gait recognition where a side view of the person is required. Our method can be used to synthesize the side-view of the person in case he/she does not present a side view to the camera. Since the planarity assumption is often an approximation, the effects of non-planarity can lead to inaccuracies in rendering and needs to be corrected for. Regions where this happens are examined and a simple technique based on weak perspective approximation is proposed to offset rendering inaccuracies. Examples of synthesized views using our method and performance evaluation are presented.
%B Multimedia and Expo, 2003. ICME '03. Proceedings. 2003 International Conference on
%V 1
%P I - 477-80 vol.1 - I - 477-80 vol.1
%8 2003/07//
%G eng
%R 10.1109/ICME.2003.1220958