用干涉滤波技术实现图象边缘增强  

A NEW METHOD OF IMAGE EDGE ENHANCEMENT BASED ON INTERFERENCE AND FILTERING

作　　者：郑刚[1] 刘铁英[1] 顾去吾[1] 孙逸平[1] 

机构地区：[1]上海机械学院仪器仪表学院

出　　处：《上海机械学院学报》1990年第3期70-74,共5页

摘　　要：本文提出了用干涉及滤波技术实现图象边缘增强的一种新方法。将同一物体的一张正确对焦的透明片与另一张离焦的透明片重叠放在透镜的前面,在单色平行光照射下,在透镜的后焦面上得到两图象的谱的干涉,通过对干涉条纹的适当滤波,可在输出面得到边缘增强的象。This paper presents a new method of image edge enhancement. A unit-amplitude, normal incident plane wave illuminates two superimposed transparencies, which situated in front of a converging lens. One transparency is correct image, and another is out-of-focus image. In the back focus plane of the lens, the interference fringe of Fourier spectra of two transparencies formed by the lens are filtered by slit. In the output plane of the optical processing system, an edge enhanced image is obtained.

关 键 词：干涉 滤波技术 图象边缘增强 

分 类 号：TH744.3[机械工程—光学工程]