Adaptive Initialization of Cluster Centers using Ant Colony Optimization: Application to Medical Images

B. S. Harish, S. V. Aruna Kumar, Francesco Masulli, Stefano Rovetta

2017

Abstract

Segmentation is a fundamental preprocessing step in medical imaging for diagnosis and surgical operations planning. The popular Fuzzy C-Means clustering algorithm perform well in the absence of noise, but it is non robust to noise as it makes use of the Euclidean distance and does not exploit the spatial information of the image. These limitations can be addressed by using the Robust Spatial Kernel FCM (RSKFCM) algorithm that takes advantage of the spatial information and uses a Gaussian kernel function to calculate the distance between the center and data points. Though RSKFCM gives a good result, the main drawback of this method is the inability of obtaining good minima for the objective function as it happens for many other clustering algorithms. To improve the efficiency of RSKFCM method, in this paper, we proposed the Ant Colony Optimization algorithm based RSKFCM (ACORSKFCM). By using the Ant Colony Optimization, RSKFCM initializes the cluster centers and reaches good minima of the objective function. Experimental results carried out on the standard medical datasets like Brain, Lungs, Liver and Breast images. The results show that the proposed approach outperforms many other FCM variants.

Paper Citation

in Harvard Style

S. Harish B., V. Aruna Kumar S., Masulli F. and Rovetta S. (2017). Adaptive Initialization of Cluster Centers using Ant Colony Optimization: Application to Medical Images . In Proceedings of the 6th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM, ISBN 978-989-758-222-6, pages 591-598. DOI: 10.5220/0006210905910598

in Bibtex Style

@conference{icpram17,
author={B. S. Harish and S. V. Aruna Kumar and Francesco Masulli and Stefano Rovetta},
title={Adaptive Initialization of Cluster Centers using Ant Colony Optimization: Application to Medical Images},
booktitle={Proceedings of the 6th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,},
year={2017},
pages={591-598},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006210905910598},
isbn={978-989-758-222-6},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 6th International Conference on Pattern Recognition Applications and Methods - Volume 1: ICPRAM,
TI - Adaptive Initialization of Cluster Centers using Ant Colony Optimization: Application to Medical Images
SN - 978-989-758-222-6
AU - S. Harish B.
AU - V. Aruna Kumar S.
AU - Masulli F.
AU - Rovetta S.
PY - 2017
SP - 591
EP - 598
DO - 10.5220/0006210905910598