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东南大学 机械工程学院,江苏 南京,211189
收稿日期:2014-11-04,
修回日期:2014-12-22,
纸质出版日期:2015-03-25
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巢渊, 戴敏, 陈恺等. 基于广义反向粒子群与引力搜索混合算法的多阈值图像分割[J]. 光学精密工程, 2015,23(3): 879-886
CHAO Yuan, DAI Min, CHEN Kai etc. Image segmentation of multilevel threshold using hybrid PSOGSA with generalized opposition-based learning[J]. Editorial Office of Optics and Precision Engineering, 2015,23(3): 879-886
巢渊, 戴敏, 陈恺等. 基于广义反向粒子群与引力搜索混合算法的多阈值图像分割[J]. 光学精密工程, 2015,23(3): 879-886 DOI: 10.3788/OPE.20152303.0879.
CHAO Yuan, DAI Min, CHEN Kai etc. Image segmentation of multilevel threshold using hybrid PSOGSA with generalized opposition-based learning[J]. Editorial Office of Optics and Precision Engineering, 2015,23(3): 879-886 DOI: 10.3788/OPE.20152303.0879.
提出了基于粒子群优化(PSO)与引力搜索(GSA)混合算法(PSOGSA)的多阈值图像分割方法来解决图像阈值搜寻过程中单一优化算法局部搜索能力不强的问题。提出了图像阈值分割领域中的广义反向学习策略
在阈值寻优过程中提高群体多样性
增强了全局搜索能力;采用了全局最优解的正态变异策略
扩展了全局最优的搜索区域
避免了算法的早熟收敛。在此基础上
实现了基于广义反向粒子群与引力搜索混合算法的多阈值图像分割方法。最后
使用本方法对复杂多目标图像进行了多阈值分割实验
并与引力搜索算法和萤火虫算法进行了比较。实验结果表明
本文方法的分割精度优于引力搜索算法与萤火虫算法
其分割目标函数值在连续运行时的标准差降低了90%以上
是一种精度高、稳定性强的多阈值图像分割方法。
A multilevel threshold image segmentation method based on hybrid Particle Swarm Optimization (PSO) and Gravitation Search Algorithm (GSA) was proposed to solve the weakness that a single algorithm in image segmentation has a lower local searching ability. A strategy of generalized opposition-based learning in image segmentation was proposed to improve the population diversity and to strengthen the global searching ability in optimizing processing. The normal mutation strategy on the best particle was conducted to extend the searching space and to avoid the premature convergence of the algorithm. Then
the multilevel threshold image segmentation method of hybrid PSOGSA with generalized opposition-based learning was implemented. Finally
complex image segmentation experiments were processed by proposed method and the results were compared with those of multilevel threshold segmentation methods of GSA and Firefly Algorithm (FA). Experimental results show the proposed method possesses a higher accuracy in multilevel threshold segmentation and the standard deviation of best objective values in continuous operation has decreased by up to 90%. Therefore
the image segmentation method of multilevel threshold using the hybrid PSOGSA with generalized opposition-based learning can be accurately and stably used in multilevel threshold image segmentation.
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