简要分析了微型计算机的显示方式与行、场频关系．提出用计算机的高分辨率显示器实时显示来自不同视频源的活动图像．方法是将视频信号数字化后，由数字存储器进行扫描速率变换和内插，然后还原成模拟信号．所得到的模拟图像信号与ＶＧＡ字符、图像一道送多路转换器，按需要实时显示活动图像或字符和静止图像，也可以实现电视图像与ＰＣ图形的叠加．该系统已用于激光水下通信的实验中，稍加改动，还可拓宽到其他应用领域 A brief analysis of the microcomputer display and line, field frequency relationship. It is proposed that real-time display of moving images from different video sources with a computer’s high-resolution display. The method is to digitize the video signal, the digital memory scan rate conversion and interpolation, and then restored to an analog signal. The resulting analog image signal and VGA characters, images sent to a multiplexer, real-time display of live images or characters and still images as needed, but also can be achieved on the TV image and PC graphics overlay. The system has been used in laser underwater communication experiment, a little change, but also broaden to other applications