一种基于游弋图像的水域监视鸟瞰图成像系统

针对各类水域污染日趋严重而传统水质监测方式离散、范围受限等不足，构建了基于游弋图像的水域鸟瞰图成像系统，实现大范围实时、连续监控。使用偏振设备消除水面反光，得到清晰的水面图像。设计了摄像机内外参标定的方法，在线获得状态参数；提出了自适应空洞填补的策略，消除了由透视图映射至鸟瞰图时产生的图像空洞；结合GPS信息和图像特征配准技术，获取了由船载摄像机视频序列拼合成的鸟瞰全景图像。该方法具有分辨率高、实时性强、监测范围广和使用成本低等优势。

An Imaging System based on Mobile-Camera for Top View of Water Surface Monitoring

As various types of water pollution is worsening, the traditional way of monitoring is insufficient because of dispersing and of limited range, a mobile-camera based imaging system for top view of water surface is built to achieve wide-ranging and continuous monitoring in real time. Reflective light of the water surface is eliminated by polarization devices, results in clear water images; new methods for camera calibration is designed so that parameters can be calculated on-line; strategy is proposed to fill the adaptive empty and eliminated the image empty after warpping to another view; with GPS information and registration technology, we get atop view image from the camera video sequences. This system can provide high resolution image with wide range and real time monitoring, besides, the cost is quite low.