To lively record information related to the video signals from monitored points on highway, such as the date/time and place, the system needs the function of overlapping the Chinese character with dynamic Video.

• 为了高速公路监控视频信号中实时记录当前日期/时间、地点等重要信息，需要在视频监控系统中增加动态视频汉字/字符叠加功能，因此，动态视频汉字叠加器成为视频监控系统中的一个重要组成部分。