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结合半局部信息与结构张量的无监督纹理图像分割

DOI: 10.11834/jig.20110411

Keywords: 图像分割,非局部图像信息,结构张量,水平集,分裂Bregman方法

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Abstract:

针对纹理的半局部性质与方向性,提出一种基于活动轮廓的无监督双纹理图像分割方法。首先分析基于半局部信息的纹理特征表示方法,指出其不能有效区分纹理的方向特征。然后利用半局部信息结合非线性结构张量构造4通道纹理特征,采用混合高斯模型作为纹理特征的概率密度函数,模型的数值求解采用分裂Bregman方法。新方法充分考虑纹理结构的周期性与方向特性,实验结果表明,其能够处理复杂的双纹理图像分割任务,同时具有高效与无监督特性。

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