复杂海空背景下鲁棒的海天线检测算法研究

海天线检测是研究成像型反舰导弹末制导技术的一项重要内容。本文深入地探讨了海空背景下的海天线检测问题。考虑到海天线为直线模型，提出了一种鲁棒的海天线检测算法。首先用方向梯度算子得到差分图像，然后基于边缘阈值策略二值化图像，最后方向细化并采用Hough变换检测海天线。实验表明，该方法战场适应性好，定位精度高，可以有效地检测出各种复杂海空背景下的海天线，为进一步应用（诸如目标识别、图像配准）奠定了良好的基础。

Robust sea-sky-line detection algorithm under complicated sea-sky background

Sea-sky-line detection is an important component involved in the guidance techniques of imaging anti-ship missile. In this paper the problem of sea-sky-line detection is discussed in detail. Considering the linear model of the sea-sky-line, a robust sea-sky-line detection algorithm is presented, which is divided into three steps: 1) Getting the difference image by using directional gradient operators; 2) Binarizing the difference image using the methods of edge threshold; 3) Thinning the binary image vertically, and detecting the sea-sky-line by Hough transform. The experimental results show that our algorithm can detect out sea-sky-line under various complicated sea-sky background effectively, and has wide adaptability and high precision, which provides a good base for further application such as target recognition, and image registration, etc.