Multi-scale edge detection in the EMD domain using the adaptive noise threshold

摘要：

A multi-scale edge detection in the EMD domain using the median absolute deviation to estimate the noise threshold is proposed to detect the edges of noisy signals with different signal to noise ratios. The new algorithm first calculates the slope of the EMD residuals in scales. Second it eliminates the noise in the slope signal by thresholding, the noise threshold of which is estimated by the median absolute deviation. At last, it output the edge information by the spatial consistence test Simulation results show that, the multi-scale edge detection in the EMD domain using the adaptive noise threshold can accurately detect the edges of signals, and suppress the noise.

关键词： edge detection EMD multi-scale median absolute deviation

作者: Zheng Ling Zhang Bin Fu Lichen

作者单位: School of Control and computer Engineering North China Electric Power University Beijing, China

会议类型: 国际会议

会议名称: 2011 International Conference on Computer Science and Network Technology(2011计算机科学与网络技术国际会议 ICCSNT 2011)

会议地点: 哈尔滨

会议语种:英文

页码: 650-652

在线出版日期: 2011-12-24（万方平台首次上网日期，不代表论文的发表时间）