Issue No. 08 - August (2011 vol. 33)
Jianxin Wu , Nanyang Technological University, Singapore
James M. Rehg , Georgia Institute of Technology, Atlanta
CENsus TRansform hISTogram (CENTRIST), a new visual descriptor for recognizing topological places or scene categories, is introduced in this paper. We show that place and scene recognition, especially for indoor environments, require its visual descriptor to possess properties that are different from other vision domains (e.g., object recognition). CENTRIST satisfies these properties and suits the place and scene recognition task. It is a holistic representation and has strong generalizability for category recognition. CENTRIST mainly encodes the structural properties within an image and suppresses detailed textural information. Our experiments demonstrate that CENTRIST outperforms the current state of the art in several place and scene recognition data sets, compared with other descriptors such as SIFT and Gist. Besides, it is easy to implement and evaluates extremely fast.
Place recognition, scene recognition, visual descriptor, Census Transform, SIFT, Gist.
J. Wu and J. M. Rehg, "CENTRIST: A Visual Descriptor for Scene Categorization," in IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 33, no. , pp. 1489-1501, 2010.