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Image Edge Detection Based on EMD and Improved Adaptive Threshold Method
Pages: 43-45
Year: Issue:  2
Journal: Instrumentation Technology

Keyword:  经验模态分解多尺度分析自适应阈值边缘检测;
Abstract: 经验模态分解( Empirical Mode Decomposition)是一种新的自适应的信号分解方法.文中利用二维经验模式分解的算法,通过过滤过程得到固有内模函数,然后利用多尺度分析提取不同尺度下的边缘,并与改进的自适应阈值方法结合对图像进行降噪处理.通过仿真实验,结果表明这种方法不仅能准确地检测出图像边缘,而且还有效地抑制了噪声,其性能优于传统的边缘检测算法.
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