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基于时空估计的冷像校正方法
Alternative TitleAn narcissus effect correction method based on spatial and time domain estimation
魏伟1,2,3,4; 向伟1,3,4; 赵耀宏1,3,4
Department光电信息技术研究室
Source Publication红外与激光工程
ISSN1007-2276
2018
Volume47Issue:6Pages:1-8
Indexed ByEI ; CSCD
EI Accession number20183605767313
CSCD IDCSCD:6271361
Contribution Rank1
Funding Organization中国科学院国防创新基金(CXJJ-15-S109)
Keyword冷像 非均匀校正 小波分解与重构
Abstract

冷像是影响制冷型红外探测器成像质量的重要因素。虽然可以通过非均匀校正技术进行去除,但当校正后的工作条件发生改变时,冷像的影响又会显现出来。根据冷像产生的机理以及频率特点,提出了一种基于时空估计的冷像校正算法。首先,通过使用小波分解与重构对原始图像进行冷像噪声空间域估计;然后,利用自适应时域低通滤波获得冷像噪声的时间域估计;最后,利用原始图像与获得的冷像估计噪声做差完成校正过程。使用仿真和实际的红外图像序列进行实验,结果表明所提算法能够有效地去除冷像噪声。

Other Abstract

Narcissus effect was an important factor that influence the imaging quality of the cooled infrared detector. Although it can be removed by non-uniform correction techniques, narcissus effect will reappear once the operating conditions have changed. Through analyzing the manifestation of narcissus effect, a correction algorithm based on adaptive spatial -temporal filtering was proposed. First, spatial domain estimation of Narcissus effect was captured by wavelet transform. Then, time domain estimation of Narcissus effect was gained by adaptive time domain low -pass filtering. Finally, the correction was applied by subtracting the estimated spatial-temporal noise from the original image. Experimental results on simulated and actual infrared image sequences have verified the effectiveness of the proposed algorithm.

Language中文
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/22323
Collection光电信息技术研究室
Corresponding Author魏伟
Affiliation1.中国科学院沈阳自动化研究所
2.中国科学院大学
3.中国科学院光电信息处理重点实验室
4.辽宁省图像理解与视觉计算重点实验室
Recommended Citation
GB/T 7714
魏伟,向伟,赵耀宏. 基于时空估计的冷像校正方法[J]. 红外与激光工程,2018,47(6):1-8.
APA 魏伟,向伟,&赵耀宏.(2018).基于时空估计的冷像校正方法.红外与激光工程,47(6),1-8.
MLA 魏伟,et al."基于时空估计的冷像校正方法".红外与激光工程 47.6(2018):1-8.
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