摘要
舰船边缘检测及尺寸测量在海洋舰船识别与探测中具有非常重要的作用,传统的监测与测量方法,存在测量精度低、适用范围窄等问题。针对这些问题本文提出一种基于小波变换的图像边缘提取方法,应用于舰船图像的尺寸测量中。利用光滑二次小波对舰船图像进行二维小波变换,计算局部极大值点,形成舰船图像边缘形状;在此基础上,构造一个边缘最小外接矩形,通过测量两点之间的距离得到舰船图像尺寸大小。实验证明,该方法与传统方法相比具有更好的效果。
This is an image edge detection based on wavelet transform,which is applied to measure the size of the ship image. Firstly we use smooth secondary wavelet to complete dimensional wavelet transform on ship image,and secondly we calculate local maxima to form the ship image edge shape; on this basis,we construct a minimum bounding rectangle edge,and measure the distance between two points on the rectangle to represent the size of ship image. The experiment proves that the method is effective and feasible.
出处
《舰船科学技术》
北大核心
2016年第5X期70-72,共3页
Ship Science and Technology
关键词
小波变换
图像边缘
外接矩形
尺寸测量
边缘检测
wavelet transform
image edge
circumscribed rectangle
size measure
edge detection
