Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23076
Title: Image segmentation based on adaptive cluster prototype estimation
Authors: Liew, AWC
Yan, H
Law, NF 
Keywords: Fuzzy clustering
Image segmentation
Prototype adaptation
Spatial continuity
Issue Date: 2005
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on fuzzy systems, 2005, v. 13, no. 4, p. 444-453 How to cite?
Journal: IEEE transactions on fuzzy systems 
Abstract: An image segmentation algorithm based on adaptive fuzzy c-means (FCM) clustering is presented in this paper. In the conventional FCM clustering algorithm, cluster assignment is based solely on the distribution of pixel attributes in the feature space, and does not take into consideration the spatial distribution of pixels in an image. By introducing a novel dissimilarity index in the modified FCM objective function, the new adaptive fuzzy clustering algorithm is capable of utilizing local contextual information to impose local spatial continuity, thus exploiting the high inter-pixel correlation inherent in most real-world images. The incorporation of local spatial continuity allows the suppression of noise and helps to resolve classification ambiguity. To account for smooth intensity variation within each homogenous region in an image, a multiplicative field is introduced to each of the fixed FCM cluster prototype. The multiplicative field effectively makes the fixed cluster prototype adaptive to slow smooth within-cluster intensity variation, and allows homogenous regions with slow smooth intensity variation to be segmented as a whole. Experimental results with synthetic and real color images have shown the effectiveness of the proposed algorithm.
URI: http://hdl.handle.net/10397/23076
ISSN: 1063-6706
EISSN: 1941-0034
DOI: 10.1109/TFUZZ.2004.841748
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