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基于去雾增强和张量恢复的红外小目标检测 被引量:5
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作者 王亚平 周裕丰 张宝华 《红外与激光工程》 EI CSCD 北大核心 2022年第4期419-427,共9页
为解决红外块张量模型中利用核范数难以找到张量秩的非凸逼近,得到的非最优解进而影响红外小目标检测,提出了一种基于去雾增强和张量恢复的红外小目标检测算法。首先,利用改进后的暗通道算法对红外图像去雾增强,提高清晰度的同时间接增... 为解决红外块张量模型中利用核范数难以找到张量秩的非凸逼近,得到的非最优解进而影响红外小目标检测,提出了一种基于去雾增强和张量恢复的红外小目标检测算法。首先,利用改进后的暗通道算法对红外图像去雾增强,提高清晰度的同时间接增强了红外图像中背景的低秩性;其次,筛选匹配的张量正面切片去构建红外块张量模型,在张量奇异值分解的框架下,将检测任务转化为张量恢复问题;最后,设计一种快速算法恢复出红外图像中的低秩成分和稀疏成分,运算简单降低算法复杂度。相较于滤波和人类视觉系统的方法,该算法在复杂背景下的误检率平均下降16.6%,在常见的高亮背景区域中检测性能良好,误检率可降低33%。实验结果表明:该算法可以适用于复杂场景,剔除潜在的虚警点。 展开更多
关键词 红外小目标 去雾增强 红外块张量模型 恢复
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Infrared small target detection algorithm via partial sum of the tensor nuclear norm and direction residual weighting
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作者 SUN Bin XIA Xing-Ling +1 位作者 FU Rong-Guo SHI Liang 《红外与毫米波学报》 北大核心 2025年第2期277-288,共12页
Aiming at the problem that infrared small target detection faces low contrast between the background and the target and insufficient noise suppression ability under the complex cloud background,an infrared small targe... Aiming at the problem that infrared small target detection faces low contrast between the background and the target and insufficient noise suppression ability under the complex cloud background,an infrared small target detection method based on the tensor nuclear norm and direction residual weighting was proposed.Based on converting the infrared image into an infrared patch tensor model,from the perspective of the low-rank nature of the background tensor,and taking advantage of the difference in contrast between the background and the target in different directions,we designed a double-neighborhood local contrast based on direction residual weighting method(DNLCDRW)combined with the partial sum of tensor nuclear norm(PSTNN)to achieve effective background suppression and recovery of infrared small targets.Experiments show that the algorithm is effective in suppressing the background and improving the detection ability of the target. 展开更多
关键词 infrared small target detection infrared patch tensor model partial sum of the tensor nuclear norm direction residual weighting
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