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People Watching: Human Actions as a Cue for Single View Geometry

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journal contribution
posted on 01.08.2012 by David F. Fouhey, Vincent Delaitre, Abhinav Gupta, Alexei Efros, Ivan Laptev, Josef Sivic

We present an approach which exploits the coupling between human actions and scene geometry. We investigate the use of human pose as a cue for single-view 3D scene understanding. Our method builds upon recent advances in still-image pose estimation to extract functional and geometric constraints about the scene. These constraints are then used to improve state-of-the-art single-view 3D scene understanding approaches. The proposed method is validated on a collection of monocular time lapse sequences collected from YouTube and a dataset of still images of indoor scenes. We demonstrate that observing people performing different actions can significantly improve estimates of 3D scene geometry.