西安交通大学人工智能与机器人研究所
纸质出版:1999
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[1]张永平,郑南宁,李翠华.图像边缘提取的自适应Volterra滤波器设计[J].电子学报,1999(04):76-79.
Zhang Yongping, Zheng Nanning, Li Cuihua. The Adaptive Design of Volterra Filters for Edge Detection of Images[J]. Acta Electronica Sinica, 1999, (4).
Voltera滤波是研究信号高阶统计冗余性的一种有效途径.我们提出了一种用于提取图像边缘的自适应二次Voltera滤波器设计方法.这种滤波器是推广型Teager基滤子的线性组合,其系数用基于极小化最小均方能量函数的共轭梯度法确定;它兼有局域平均和高通特性,因而可均衡去除噪声和增强图像边缘.文章还给出了计算实例.
The Volterra operations are an effective way for the explorations of higher order statistical redundancies of signals.We present a design method for adaptive quadratic Volterra filters with application to edge detection of images.The filter is expressed as a linear combination of generalized Teager basis filters.The expression coefficients are determined by minimizing the least mean square (LMS).This filter
like a local mean weighted highpass filter
can balance the reducing noise and enhancing feature.
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