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题名: 一种自适应非均匀性校正算法
其他题名: An Adaptive Nonuniformity Correction Algorithm for Infrared Focal Plane Array
作者: 于世孔; 向伟; 赵耀宏; 张程硕
作者部门: 光电信息技术研究室
关键词: 非均匀性校正 ; 神经网络 ; 鬼影 ; 三边滤波
刊名: 计算机辅助设计与图形学学报
ISSN号: 1003-9775
出版日期: 2016
卷号: 28, 期号:1, 页码:138-145
收录类别: EI ; CSCD
产权排序: 1
摘要: 针对神经网络非均匀性校正算法(NN-NUC)存在的鬼影问题,分析了其形成的机理,提出一种自适应非均匀性校正算法.首先设计了一个去噪保边的高斯低通-三边联合滤波器;然后采用该滤波器取代NN-NUC算法的均值滤波器获取期望图像,以减少边缘像素估计误差,达到抑制鬼影的目的。采用仿真和实际红外图像序列进行实验的结果表明,该算法在有效地抑制鬼影的同时获得了较好的非均匀性校正效果。
英文摘要: Ghosting artifact exists in Neural Network nonuniformity correction(NN-NUC) algorithm. The cause of ghosting artifact is analyzed, and an adaptive nonuniformity correction algorithm is proposed. First, an edge-preserving and denoising filter combinated by Gaussian low-pass filter and trilateral filter is designed. Then, the spatial average filter of NN-NUC is replaced by the proposed filter. To a large degree, the estimating errors of edge pixels are reduced and the ghosting artifact is removed. Finally, a simulation and a real infrared image sequence testing are carried out. The results show that the proposed algorithm effectively mitigates the ghosting artifact and yields a good nonuniformity correction effect.
语种: 中文
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内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/17612
Appears in Collections:光电信息技术研究室_期刊论文

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Recommended Citation:
于世孔,向伟,赵耀宏,等. 一种自适应非均匀性校正算法[J]. 计算机辅助设计与图形学学报,2016,28(1):138-145.
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文件名: 一种自适应非均匀性校正算法.pdf
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