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3D priors for scene learning from a single view

Publication ,  Journal Article
Rother, D; Patwardhan, K; Aganj, I; Sapiro, G
Published in: 2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops, CVPR Workshops
September 22, 2008

A framework for scene learning from a single still video camera is presented in this work. In particular, the camera transformation and the direction of the shadows are learned using information extracted from pedestrians walking in the scene. The proposed approach poses the scene learning estimation as a likelihood maximization problem, efficiently solved via factorization and dynamic programming, and amenable to an online implementation. We introduce a 3D prior to model the pedestrian's appearance from any viewpoint, and learn it using a standard off-the-shelf consumer video camera and the Radon transform. This 3D prior or "appearance model" is used to quantify the agreement between the tentative parameters and the actual video observations, taking into account not only the pixels occupied by the pedestrian, but also those occupied by the his shadows and/or reflections. The presentation of the framework is complemented with an example of a casual video scene showing the importance of the learned 3D pedestrian prior and the accuracy of the proposed approach. © 2008 IEEE.

Duke Scholars

Published In

2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops, CVPR Workshops

DOI

Publication Date

September 22, 2008
 

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Rother, D., Patwardhan, K., Aganj, I., & Sapiro, G. (2008). 3D priors for scene learning from a single view. 2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops, CVPR Workshops. https://doi.org/10.1109/CVPRW.2008.4563034
Rother, D., K. Patwardhan, I. Aganj, and G. Sapiro. “3D priors for scene learning from a single view.” 2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops, CVPR Workshops, September 22, 2008. https://doi.org/10.1109/CVPRW.2008.4563034.
Rother D, Patwardhan K, Aganj I, Sapiro G. 3D priors for scene learning from a single view. 2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops, CVPR Workshops. 2008 Sep 22;
Rother, D., et al. “3D priors for scene learning from a single view.” 2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops, CVPR Workshops, Sept. 2008. Scopus, doi:10.1109/CVPRW.2008.4563034.
Rother D, Patwardhan K, Aganj I, Sapiro G. 3D priors for scene learning from a single view. 2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops, CVPR Workshops. 2008 Sep 22;

Published In

2008 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops, CVPR Workshops

DOI

Publication Date

September 22, 2008