Alexander G M, Schwartzman R J
J Neurosci Methods. 1984 Nov;12(1):29-36. doi: 10.1016/0165-0270(84)90044-x.
A computerized image-processing system that employs a high resolution Datacopy Corporation charge-coupled device (CCD) camera is described. The CCD camera generates 327,680 pixels (512 horizontal axis by 640 vertical axis), eight bits per pixel (256 grey levels). The image is then processed by a Digital Graphics TKS-400 imaging computer system. The computer image corresponds to the optical density information contained in the autoradiograms. Depending on the autoradiographic information, the image can be displayed as functional maps, i.e. maps of cerebral metabolism, blood flow, neurotransmitter receptor densities, etc. This system provides quantitative computer analysis of autoradiograms in a relatively inexpensive manner.
本文描述了一种采用高分辨率Datacopy公司电荷耦合器件(CCD)相机的计算机图像处理系统。该CCD相机生成327,680个像素(水平轴512个像素,垂直轴640个像素),每个像素8位(256个灰度级)。然后,图像由数字图形TKS - 400成像计算机系统进行处理。计算机图像对应于放射自显影片中包含的光密度信息。根据放射自显影信息,图像可以显示为功能图谱,即脑代谢、血流、神经递质受体密度等图谱。该系统以相对低廉的方式提供对放射自显影片的定量计算机分析。