应用菌紫质膜模拟动物“边”感受野并检测图像边界轮廓

菌紫质膜是一种颇有前途的分子电子器件材料。Tsutornu^1]以菌紫质膜为材料，完成了具有动物视觉功能特点的含256像素的图像传感器。此外，菌紫质膜还被用来模拟视觉感受野的运算功能^2-4]简单细胞“边”感受野由两个互为颉顽的ON响应区和OFF响应区组成。它对图像中的对比度信息具有敏感性。菌紫质膜因其优良的分辨率(5000线/min),灵敏度(1-805/cm²)以及光电特性而足以被用来制作人工“边”感受野，并模拟简单细胞“边”感受野的这一特性。以此为基础，本文构建了一个图像轮席检测的原理系统，成功地检测了简单图像轮廊。

The Simulation of the Animal Edge Receptive Field and the Contour Detection in the Image Using Bacteriorhodopsin Films

The bacteriorhodopsin deposited films were applied to mimic the edge receptive field of the animal simple cell.On the basis of the artificial receptive field combined with artificial neuronal net,the image system for contour detection was constructed and successively detected the contour of image.The technology based on the biomolecular will promote the development of artificial vision,image technology and molecular electronic device.