摘要
为了快速、准确检测海天背景下远距离水平观测的船舶目标,提出了一种基于海天线提取和混合灰度差的船舶检测方法。首先,利用边缘检测算法将图像分为天空、海天线和海面三个区域,并根据海天区域连接点,采用直线拟合方法确定海天线的直线参数;然后提取海天线区域作为目标感兴趣区域,并在去除海面杂波和噪声等干扰后利用混合灰度差水平投影和垂直投影来定位目标;最后,根据投影曲线统计值分析得到目标的坐标和大小。实验结果表明,该方法可以有效检测出海天背景下远距离水平观测的船舶目标,并且运算简单、处理速度快,因此能够满足船舶目标检测的实时处理要求。
In order to quickly and accurately detect ship targets in long-range horizontal observation under sea-sky background,a ship detection method based on the sea-sky line extraction and mixed gray difference is proposed in this paper.Firstly,the image is divided into sky,sea-sky line and sea surface by the edge detection algorithm.The linear fitting method is adopted on the connection points of sea and sky to determine the parameters of sea-sky line.Then the sea-sky line area is extracted as the target area of interest,and the interferences such as sea clutter and noise are removed.The mixed gray difference horizontal and vertical projection are used to locate the target.Finally,the statistical value of the projection curve is analyzed to obtain the coordinates and size of the target.The experimental results show that this method can effectively detect ship targets in long-range horizontal observation under sea-sky background,and it is simple in calculation and fast in processing speed.So it can meet the real-time processing requirements of ship target detection.
作者
黄明晶
王雪梅
蹇渊
孟伟杰
马蒙蒙
HUANG Ming-jing;WANG Xue-mei;JIAN Yuan;MENG Wei-jie;MA Meng-meng(Southwest Institute of Technical Physics, Chengdu 610047, China)
出处
《红外》
CAS
2021年第6期29-33,共5页
Infrared
关键词
海天线提取
边缘检测
混合灰度差
目标检测
sea-sky line extraction
edge detection
mixed gray difference
target detection
