成像光谱的信息采集与数据处理  

Information capture and data process of imaging spectrum technology

作　　者：李全臣[1] 夏亮[1] 

机构地区：[1]北京理工大学信息工程学院光电工程系

出　　处：《光学技术》1999年第3期69-72,共4页Optical Technique

摘　　要：论述了成像光谱技术中的光学成像技术、光谱信息采集及探测器像点与光谱图像像点的定位技术，提出了一种精确确定ＣＣＤ面阵上像敏元与光谱图像像素对应关系的新方法。系统电路能够对视频信号进行处理，输出带有标志线的复合视频信号，同时精确测定标志脉冲的位置，以数据形式提供给计算机，通过计算机对图像及采集的数据的分析处理，从而确定图像像素和ＣＣＤ面阵上像敏元的对应关系。系统软件能方便的实现对电路的控制、数据采集、光谱图像的分析、显示绘制图像的ＲＧＢ值和灰度曲线，能稳定运行于Ｗｉｎｄｏｗｓ环境下。Expatiated on three important branches of imaging spectrum technology, the technology of optical imaging, spectrum information capture and the research of the relations between the image sensitive units of CCD and the pixels of image displayed on computer monitor. A definitely new approach is presented on how to locate the image sensitive points of CCD precisely. The circuit device can process standard video signal and generate an special composite video signal which contains flag pulses. The accurate distance between any two flag pulses can acquired through a counter comprised of 74LS161 and the data are input to computer. Through computer procession of the data and the image captured previously, the result , which reveal the relations between the points of CCD and the pixels of image , is produced. The system software can accomplish these functions: circuit control, data capture, spectrum image analysis, displaying the RGB values and drawing the gray curves of image. The software is very convenient to use and can run steadily under Windows circumstances.

关 键 词：光谱 CCD 图像 视频 成像光谱 信息采集 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置] O433[自动化与计算机技术—控制科学与工程]