基于灰度门限分析的海天线检测研究

Research on the Sea-Sky-Line Detection Based on the Analysis of the Grayscale Threshold

由于海天线检测在海天背景下的舰船目标检测与跟踪方面具有重要作用,提出了一种基于边缘灰度梯度门限分析和最小二乘直线拟合法的海天线检测方法。通过分析图像以及调整线性滤波器的步长来扩大海天线附近的灰度梯度差。采用门限分析法提取了边缘坐标,采用最小二乘直线拟合法提取了海天线,并利用MATLAB软件进行仿真验证。结果表明,本文算法可准确提取复杂背景下的海天线,且具有较好的适应性与实用性。

Under the sea-sky background,sea-sky-line detection can play an important role in detecting and tracking the ship targets.A method of sea-sky-line detection based on the analysis of the grayscale threshold is proposed.By analyzing the image and adjusting the step size of the linear filter,the gradient difference of the grayscale near the sea-sky-line is enlarged.The method based on threshold analysis is used to extract the edge coordinates,and the sea-sky-line is fitted through the least square method.The simulation verification is conducted by MATLAB as well.The results show that the proposed algorithm can accurately extract the sea-sky-line in the complex background,and has good adaptability and practicability.