PASCAL - Pattern Analysis, Statistical Modelling and Computational Learning

A sparse object category model for efficient learning and complete recognition
Robert Fergus, Pietro Perona and Andrew Zisserman
In: Toward Category-Level Object Recognition LNCS , 4170 . (2006) Springer , pp. 443-461.


We present a 'parts and structure' model for object category recognition that can be learnt efficiently and in a weakly-supervised manner: the model is learnt from example images containing category instances, without requiring segmentation from background clutter. The model is a sparse representation of the object, and consists of a star topology configuration of parts modeling the output of a variety of feature detectors. The optimal choice of feature types (whose repertoire includes interest points, curves and regions) is made automatically. In recognition, the model may be applied efficiently in a complete manner, bypassing the need for feature detectors, to give the globally optimal match within a query image. The approach is demonstrated on a wide variety of categories, and delivers both successful classification and localization of the object within the image.

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EPrint Type:Book Section
Project Keyword:Project Keyword UNSPECIFIED
Subjects:Machine Vision
ID Code:2959
Deposited By:Mudigonda Pawan Kumar
Deposited On:01 March 2007