基于角检测方法的船只检测  

Detection of Vessel Based on Angle Detection Method

作　　者：刘宁波[1] 李婷婷[2] 王李平[2] 员志超[1] 

机构地区：[1]山东科技职业学院信息网络系,山东潍坊261053 [2]重庆邮电大学计算机科学与技术学院,重庆400065

出　　处：《太原理工大学学报》2009年第6期592-595,共4页Journal of Taiyuan University of Technology

基　　金：国家自然科学基金(60873186/F020509)

摘　　要：为了更好地检测停在港口岸上的船只,提出了一种角点及角度检测方法,以用于对前端有尖角的船只检测。该法以图像在某一点的极坐标变换为基础,将梯度图像的灰度值在每个方向上叠加,再检测累加值最大的两个方向,得出两个方向上分别的累加值和方向角,再通过一个权值计算公式来设定该点为角点的可能性。结合高斯平滑,该方法能方便地找出不同尺度的角点,及其对应角度的位置,从而有效检测出船的前端点及船的方向,进而确定船的位置。该法克服了其他方法无法分割出停在岸边的船的缺点,对船只的检测提供了值得借鉴的经验。To have better detection of vessel on shore in the port, an angle detection method was presented to detect vessels with acute angle in their front part. On the basis of the polar coordinate transformtion of a point in image, this method a ceumulates the gray values of gradient images in each direction, detects the two directions of largest accumulated value,obtains the accumulated values and direction angles in both directions,and finally,sets the possibility of the point as angle point using a weight calculating formula. This method,combined with Gauss smoothing,can easily find out the angle point of different scales and the position corresponding to the point,and can effectively detect front endpoint and direction of vessel,and can conveniently to determine the position of vessel. This method overcomes the drawbacks of other methods that can not distinguish the vessels on shore,and provides a good support for vessel detection.

关 键 词：船只检测 角点 角检测 高斯平滑 极坐标 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]