为抑制海空背景干扰和提高舰船检测速度, 提出一种基于纹理特征分析的海天线检测方法。分析了典型红外海空背景下海天线区域的纹理分布特征, 建立了适用于海天线检测的纹理模型。通过梯度特征计算和聚类分析找出图像中的候选直线位置, 比较其纹理参数并准确检测出海天线。对多种复杂背景红外海空图像的实验表明, 该方法适应面广, 计算简便, 具有很好的抗干扰能力。

Sea-sky-line extraction is important to suppress background interference and improve the detection speed of warship target. This paper presents an algorithm based on texture distributing of infrared complicated sea-sky image. A texture model is proposed by analyzing the texture distributing feature at ocean line area of classical sea-sky images. The textural image is got by using gradient operators. Then the positions of likely sea-sky-line can be obtained by clustering the peak value of gradient. The correct sea-sky-line was detected by comparing the textural parameters of all those positions. Experimental results indicated that this algorithm can extract the sea-sky-line under various complicated sea-sky background effectively, and has good adaptation and anti-interference ability.