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Hybrid Intelligent Systems, International Conference on (2006)
Auckland, New Zealand
Dec. 13, 2006 to Dec. 15, 2006
ISBN: 0-7695-2662-4
pp: 26
Swagatam Das , Jadavpur University, India
Ajith Abraham , Yonsei University, Korea
Subir Kumar Sarkar , Jadavpur University, India
This article presents a framework to hybridize the rough set theory with a famous swarm intelligence algorithm known as Particle Swarm Optimization (PSO). The hybrid rough-PSO technique has been used for grouping the pixels of an image in its intensity space. Medical and remote sensing satellite images become corrupted with noise very often. Fast and efficient segmentation of such noisy images (which is essential for their further interpretation in many cases) has remained a challenging problem for years. In this work, we treat image segmentation as a clustering problem. Each cluster is modeled with a rough set. PSO is employed to tune the threshold and relative importance of upper and lower approximations of the rough sets. Davies-Bouldin clustering validity index is used as the fitness function, which is minimized while arriving at an optimal partitioning.

S. K. Sarkar, S. Das and A. Abraham, "A Hybrid Rough Set--Particle Swarm Algorithm for Image Pixel Classification," 2006 Sixth International Conference on Hybrid Intelligent Systems(HIS), Rio de Janeiro, Brazil, 2006, pp. 26.
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