Pixel clustering by adaptive pixel moving and chaotic synchronization

Authors:
Liang Zhao;A. C.P.L.F. de Carvalho;Zhaohui Li
Affiliations:
Dept. of Comput. Sci. & Stat., Univ. of Sao Paulo, Sao Carlos, Brazil;-;-
Venue:
IEEE Transactions on Neural Networks
Year:
2004

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Abstract

In this paper, a network of coupled chaotic maps for pixel clustering is proposed. Time evolutions of chaotic maps in the network corresponding to a pixel cluster are synchronized with each other. Those synchronized trajectories are desynchronized with respect to the time evolutions of chaotic maps corresponding to other pixel clusters in the same image. A pixel motion mechanism is also introduced, which makes each group of pixels more compact and, consequently, makes the model robust enough to classify ambiguous pixels. Another feature of the proposed model is that the number of pixel clusters does not need to be previously known.