Chaotic clonal selection optimisation for multi-threshold segmentation Online publication date: Fri, 25-Sep-2015
by Habibullah Akbar; Nanna Suryana; Shahrin Sahib
International Journal of Signal and Imaging Systems Engineering (IJSISE), Vol. 8, No. 5, 2015
Abstract: As the computational complexity of multi-threshold segmentation methods grow exponentially, a number of bio-inspired algorithms have been emerging as the potential solutions due to nature of their linear growth. However, the use of traditional pseudo-random number leads to instability of the solution. This study proposes new Clonal Selection Algorithm (ClonalG) that uses deterministic chaotic dynamical system to replace the use of pseudo-random number. We use logistic map to generate the chaotic number with uniform distribution. The chaotic number is used to substitute the pseudo-random number for the population initialisation, affinity maturation and new antibodies generation. The algorithm behaves stable in terms of the final solution. The proposed algorithm was evaluated and used for multiple image segmentation on nine standard test images. The results confirmed that the proposed algorithm was more effective and stable in comparison to conventional ClonalG and Particle Swarm Optimisation (PSO).
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