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Ilunga-Mbuyamba, Elisee; Cruz-Duarte, Jorge Mario; Avina-Cervantes, Juan Gabriel; Correa-Cely, Carlos Rodrigo; Lindner, Dirk; Chalopin, Claire
Expert systems with applications, 09/2016, Letnik: 56Journal Article
•An alternative Active Contour Model solution for medical images is introduced.•A multi-population Cuckoo Search Strategy (MCSS) is implemented to boost ACM.•Proposed method was applied on Magnetic Resonance Imaging (MRI) data.•MCSS outperforms traditional ACM and ACM driven by multi-population PSO. In this paper, an alternative Active Contour Model (ACM) driven by Multi-population Cuckoo Search (CS) algorithm is introduced. This strategy assists the converging of control points towards the global minimum of the energy function, unlike the traditional ACM version which is often trapped in a local minimum. In the proposed methodology, each control point is constrained in a local search window, and its energy minimisation is performed through a Cuckoo Search via Lévy flights paradigm. With respect to local search window, two shape approaches have been considered: rectangular shape and polar coordinates. Results showed that the CS method using polar coordinates is generally preferable to CS performed in rectangular shapes. Real medical and synthetic images were used to validate the proposed strategy, through three performance metrics as the Jaccard index, the Dice index and the Hausdorff distance. Applied specifically to Magnetic Resonance Imaging (MRI) images, the proposed method enables to reach better accuracy performance than the traditional ACM formulation, also known as Snakes and the use of Multi-population Particle Swarm Optimisation (PSO) algorithm.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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