光学学报, 2020, 40 (15): 1504001, 网络出版: 2020-08-14
基于Robinson-Guard滤波器和像素聚拢度的小目标检测方法 下载: 1114次
Small Target Detection Method Based on Robinson-Guard Filter and Pixel Convergence
探测器 图像识别 红外图像 小目标检测 Robinson-Guard 像素聚拢度 detectors image recognition infrared image small target detection Robinson-Guard pixel convergence
摘要
线列红外推扫探测器扫描帧率低,存在带状噪声,为此,提出一种基于Robinson-Guard滤波器和像素聚拢度的小目标检测方法。在红外图像上均匀布置采样窗口,令采样窗口根据图像亮度梯度聚集到高亮区域。融合红外图像的目标能量信息、局域对比度、目标像素聚拢度等多种特征,将采样窗口的加权叠加作为目标概率图。使用全局阈值分割获取目标,最终实现红外小目标的检测。实验结果表明,该算法可以检测中小尺寸的红外目标,且有效对抗探测器带来的带状噪声。
Abstract
A linear array infrared push scan sensor has low scanning frame rate and belt noise. Therefore, a small target detection method based on Robinson-Guard filter and pixel convergence is proposed. At the first stage, some sample windows are uniformly placed on the infrared image, so that the sample windows can focus on the high-lighted region according to the brightness gradient of image. Then, the weighted superposition of the sampling window is used as the target probability map, which combines the target energy information, local contrast, target pixel convergence, and other features of the infrared image. Finally, the target is obtained by global threshold segmentation, and the detection of small infrared target is realized. Experimental results show that the method can detect the small and medium size infrared targets and is effectively resistive to the band noise caused by the detector.
楼晨风, 张湧, 尹佳琪. 基于Robinson-Guard滤波器和像素聚拢度的小目标检测方法[J]. 光学学报, 2020, 40(15): 1504001. Chenfeng Lou, Yong Zhang, Jiaqi Yin. Small Target Detection Method Based on Robinson-Guard Filter and Pixel Convergence[J]. Acta Optica Sinica, 2020, 40(15): 1504001.