山东大学学报 (工学版) ›› 2018, Vol. 48 ›› Issue (5): 9-15.doi: 10.6040/j.issn.1672-3961.0.2018.245
胡建平1,2(),李鑫1,谢琪1,3,*(),李玲1,张道畅1
Jianping HU1,2(),Xin LI1,Qi XIE1,3,*(),Ling LI1,Daochang ZHANG1
摘要:
提出一种改进的基于Delaunay三角化的二维无约束优化经验模态分解(empirical mode decomposition, EMD)方法,对二维图像极值点重新定义,利用对定义的极值点进行Delaunay三角化构建无约束的优化模型对图像进行迭代分解,能够将原始图像自适应分解为尺度从细到粗的内蕴模态图像分量和一个余量。试验结果表明:本研究提出的方法较原始的二维无约束优化EMD方法具有更强的细节获取能力,能够更好地体现原始图像的不同尺度特征。
中图分类号:
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