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A Hierarchical Object Recognition System Based on Multi-scale Principal Curvature Regions

TitleA Hierarchical Object Recognition System Based on Multi-scale Principal Curvature Regions
Publication TypeConference Paper
Year of Publication2006
AuthorsZhang, W., H. Deng, T. G. Dietterich, and E. N. Mortensen
Conference Name18th International Conference on Pattern Recognition (ICPR'06)
Pagination778 - 782
Date Published06/2006
PublisherIEEE
Conference LocationHong Kong, China
ISBN Number0-7695-2521-0
Abstract

This paper proposes a new generic object recognition system based on multi-scale affineinvariant image regions. Image segments are obtained by a watershed transform of the principal curvature of a contrast enhanced image. Each region is described by an intensity-based statistical descriptor and a PCASIFT descriptor. The spatial relations between regions are represented by a cluster-index distribution histogram. With these new descriptors, we develop a hierarchical object recognition system which uses an improved boosting feature selection method [9] to construct layer classifiers by automatically selecting the most discriminative features in each layer. All layer classifiers are then combined to give the final classification. This system is tested on various object recognition problems. Experimental results show that the new hierarchical system outperforms the comparable solutions on most of the datasets tested.

DOI10.1109/ICPR.2006.1195