基于发光二极管阵列的光学中值滤波的实现

OPTICAL MEDIAN FILTERING OF GRAY-SCALE IMAGE WITH PROGRAMMABLE LED ARRAY

提出一种铸影（ＳｈａｄｏｗＣａｓｔｉｎｔ）的非相干光学系统，由可编程的发光二极管阵列实时产生二值中值滤波函数，用电的方法完成取阈和求和运算来实现中值滤波．同时利用非线性阈值分解技术实现灰值图像中值滤波．该系统结构简单紧凑，取阈方便．

An optical incoherent shadow-casting system based on programmable LEDs arrays is proposed to implement median filtering of binary images.By time-sequential threshold decomposition,this system can perform median filtering of gray-scale images.The system is compact and convenient in changing the median filtering function and thresholding.