基于图像解析定位的近海内波实时自动监测技术研究

项目名称： 基于图像解析定位的近海内波实时自动监测技术研究

项目编号： No.61301241

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 王胜科

作者单位： 中国海洋大学

项目金额： 25万元

中文摘要： 当前在近海内波观测研究中，除通过水下仪器获取观测数据外，分析拍摄到的内波图像也是一种直观有效的分析手段。拍摄内波图像的方法一种是采用遥感图像，但遥感图像时间与空间均受轨道限制，而且精度低，因此很难捕捉到内波的传播演变及相互作用等三维演化的时空特性；另一种方法是人为拍摄表面波图像，分析获得的内波位置信息，然后通知观测船上人员走航以采集相关数据，因此存在成本高，数据缺乏实时性等问题。本课题通过研究分析架设在船体至高点上的多台相机拍摄的实时图像，获取内波的时空演变信息及内波传播的方向和速度，同时根据分析获得的多点测量定位信息，自动控制相机云台转动跟踪拍摄内波图像，采集内波波要素。基于船载相机的视觉分析方法还可进一步扩展应用于近海其他海洋问题如溢油、浒苔、赤潮等的监测，实现图像智能解析定位的近海环境要素实时自动监测。

中文关键词： 近海环境；图像解析；内波；监测技术；无人机

英文摘要： In the current studies of offshore internal waves, one common way to get observation data is to put devices under water, and another intuitive and effective way is to analyze the digital images of internal waves. One mothed to get image of internal waves is by remote sensing, but the remote sensing images are limited in time and space because of the track of satellite, and the accuracy is also low, so it is difficult to capture the spatial and temporal characteristics of the evolution of internal waves propagation; another method is to capture the images of internal waves manually, and then analyze the images to get the position information.According to the position information of internal waves, then notice observing persons on board to use a moving vessel to collect relevant data, so there is a high cost, lack of datareal-time and other issues. In this research, the internal waves images captured by the cameras setup in the hull will be analyzed in real-time, and the temporal and spatial evolution of information, the wave propagation direction and speed of internal waves will be achieved. According to the multi-point measurement location information, the PTZ can be automatically controled to track internal waves and the internal waves elements also can be collected. The camera-based visual analysis methods ca

英文关键词： offshore environment；image analysis；internal waves；monitoring technology；Unmanned Aerial Vehicles