Dynamic-context cooperative quantum-behaved particle swarm optimization based on multilevel thresholding applied to medical image segmentation

Research output: Contribution to journalArticle


Colleges, School and Institutes


This paper proposes a dynamic-context cooperative quantum-behaved particle swarm optimization algorithm. The proposed algorithm incorporates a new method for dynamically updating the context vector each time it completes a cooperation operation with other particles. We first explain how this leads to enhanced search ability and improved optimization over previous methods, and demonstrate this empirically with comparative experiments using benchmark test functions. We then demonstrate a practical application of the proposed method, by showing how it can be applied to optimize the parameters for Otsu image segmentation for processing medical images. Comparative experimental results show that the proposed method outperforms other state-of-the-art methods from the literature.


Original languageEnglish
Pages (from-to)408-422
JournalInformation Sciences
Early online date12 Oct 2014
Publication statusPublished - 10 Feb 2015


  • Quantum-behaved particle swarm optimization, Cooperative method, Context vector, Image segmentation