Date of Original Version

12-2008

Type

Conference Proceeding

Abstract or Description

We present an approach that combines bag-of-words and spatialmodels to perform semantic and syntactic analysis for recognition of an object based on its internal appearance and its context. We argue that while object recognition requires modeling relative spatial locations of image features within the object, a bag-of-word is sufficient for representing context. Learning such a model from weakly labeled data involves labeling of features into two classes: foreground(object) or “informative” background(context). We present a “shape-aware” model which utilizes contour information for efficient and accurate labeling of features in the image. Our approach iterates between an MCMC-based labeling and contour based labeling of features to integrate co-occurrence of features and shape similarity.

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Published In

Proceedings of 22nd Conference on Neural Information Processing Systems.