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Natural image matting for multiple wide-baseline views

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5 Author(s)
Sarim, M. ; Centre of Vision Speech & Signal Process., Univ. of Surrey, Guildford, UK ; Hilton, A. ; Guillemaut, J.-Y. ; Takai, T.
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In this paper we present a novel approach to estimate the alpha mattes of a foreground object captured by a wide-baseline circular camera rig provided a single key frame trimap. Bayesian inference coupled with camera calibration information are used to propagate high confidence trimaps labels across the views. Recent techniques have been developed to estimate an alpha matte of an image using multiple views but they are limited to narrow baseline views with low foreground variation. The proposed wide-baseline trimap propagation is robust to inter-view foreground appearance changes, shadows and similarity in foreground/background appearance for cameras with opposing views enabling high quality alpha matte extraction using any state-of-the-art image matting algorithm.

Published in:

Image Processing (ICIP), 2010 17th IEEE International Conference on

Date of Conference:

26-29 Sept. 2010