南京大学学报(自然科学版) ›› 2017, Vol. 53 ›› Issue (3): 569.
唐益明1,2*,赵跟陆1,2,任福继1,2,丰刚永1,2,胡相慧1,2
Tang Yiming1,2*,Zhao Genlu1,2,Ren Fuji1,2,Feng Gangyong1,2,Hu Xianghui1,2
摘要: 现有基于模糊聚类的图像分割算法对噪声敏感,不能妥善地处理图像的灰度特征与邻域像素之间关系.针对该问题,在可能性聚类的基础上融入多核聚类思想,提出了图像分割的EMKPFC算法(Enhanced Multiple Kernel Possibilistic Fuzzy Cmeans algorithms).该算法可以有效地利用模糊聚类方法以及可能性聚类算法的优点.进一步地,该算法能够规避普通核算法对于核函数选择的不确定性,增加了算法的抗变换性;对于挑选的多种核函数,凭借权重组合能够满足不同图像对于各种核函数的偏好需求,计算出最佳匹配的权重值.在没有任何先验的情况下,不仅可以进行准确的划分,而且还可以做到划分非线性团状样本.通过对于人造图像、真实图像和医学图像的实验结果表明,所提算法比其他相关基于模糊聚类的图像分割算法都具有更好的效果.
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