一种视频图像船舶吃水线自动检测方法

针对在船舶吃水线自动检测过程中水迹线边缘带来的干扰,提出一种基于图像处理的船舶吃水线自动检测方法。该方法实时提取船舶水尺视频图像,利用Canny算子进行边缘检测,几何校正后,利用霍夫变换检测出水迹线和吃水线位置,最后通过位置比较,去除处在上方的水迹线,从而得到准确的吃水线位置。实验结果表明,该方法对船舶实际吃水线的检测是有效的。

A New Method for Automatic Detection of Ship Waterline

Aiming at the interfered by the trace of water＇s edge in ship＇s waterline automatic detection processing, a new method for automatic detection of ships waterline was presented based on the image processing method. The method extracts ship water gauge from real-time video images, uses Canny operators to detect edges, uses Hough transform to detect the locations of water trace and the waterline after geometric correction, at last removes trace of water above so as to find location of the waterline accurately. Experimental results showed that this method of detecting the actual waterline of ship is effective.