海事智能视频监控系统设计与实现

Design of an Intelligent Marine Video Surveillance System

设计了一个面向海事场景的网络视频监控系统,系统从网络上获取航道和港区视频序列,进行分析和处理,对用户定义的受控区域进行实时监控,当受控区域出现运动目标时进行分级告警。针对海事场景背景复杂、干扰大等困难,提出了改进的混合高斯背景模型及运动检测方法。在目标跟踪方面,为运动区域建立颜色、形状和运动的混合模型,并通过距离矩阵和匹配矩阵判定目标和轨迹间的对应关系。经测试,该设计实现的各项功能都能满足海事部门对海事场景的实时监控。

An intelligent marine video surveillance system is introduced. The system obtains video streams of channels and ports through internet, then analyzes and processes them. The system monitors the user-defined regions real-timely and alarms when prohibited moving objects appear. Because the marine scene is complicated and interferential, a modified mixture Gaussians approach and a moving detection method are suggested. In order to track multiple objects, a mixed model including color, shape and motion for each detected region is set up. A distance matrix and a matching matrix give the correlations between newly detected objects and trajectories.