An integrated Bayesian approach to layer extraction from imagesequences
Torr, P.H.S.; Szeliski, R.; Anandan, P.
Pattern Analysis and Machine Intelligence, IEEE Transactions on
Volume 23, Issue 3, Mar 2001 Page(s):297 - 303
Digital Object Identifier 10.1109/34.910882
Summary:This paper describes a Bayesian approach for modeling 3D scenes as
collection of approximately planar layers that are arbitrarily
positioned and oriented in the scene. In contrast to much of the
previous work on layer-based motion modeling, which computes layered
descriptions of 2D image motion, our work leads to a 3D description of
the scene. There are two contributions within the paper. The first is to
formulate the prior assumptions about the layers and scene within a
Bayesian decision making framework which is used to automatically
determine the number of layers and the assignment of individual pixels
to layers. The second is algorithmic. In order to achieve the
optimization, a Bayesian version of RANSAC is developed with which to
initialize the segmentation. Then, a generalized expectation
maximization method is used to find the MAP solution
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