摘要
本文介绍用面积编码的方法将滤波函数为正弦函数的匹配滤波器和菲涅耳波带片组合在一起的自聚焦滤波器。将其用于探测图像边缘信息时可使光路大为简化 ,调节方便。讨论了用这种组合滤波器探测图像边缘的原理 ,介绍了元件的制做方法 。
This paper presents a self focusing filter which is composed of matched filter with sine form and Fresnel zone plate by means of area coded method.The otpical setup can be simplified and adjusted readily while detecting image edge.The principle of detecting the image edge with the composite filter is discussed.The manufacturing method and the experimental results are also presented.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2001年第10期1022-1024,共3页
Journal of Optoelectronics·Laser
关键词
小波变换
图形边缘探测器
面积编码法
wavelet transform
Fresnel zone plate
self focsing filter
area coded
