一、引言由于摄象录象系统有扩展视觉、观察连续、信息存贮和再现等功能,因此在科研领域中愈来愈多地得到应用。例如生物细胞冷冻和解冻情况的研究,可用显微摄象系统把变化过程录制下来。然而,一般录象系统只有图象的录制和重放,缺少相应于录制内容的实时物理量数据,不便于分析研究。为此,我们设计了一个简单的实时数据添加器,不需要字幕摄象和特技键控装置,就可简便地把一些数据字符添加到视频 I. INTRODUCTION As the camera video system has the functions of continuous visualization, continuous storage, information storage and reproduction, it has been applied more and more in the field of scientific research. For example, the study of freezing and thawing of biological cells can be recorded by a microscopic camera system. However, the general recording system only records and replays the images, which lacks the real-time physical quantity data corresponding to the recorded contents, which is inconvenient for the analysis and study. To this end, we designed a simple real-time data adder that simply adds some data characters to the video without the need for subtitle camera and trick keying devices