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doi: Non-Uniformity Correction for Multi-Channel TDI CCD Imaging System in Wide Response Range
Zheng, L.; G. Jin; H. Qu and G. Zhang
2017
Source PublicationGuangxue Xuebao/Acta Optica Sinica
Volume37Issue:11
AbstractThere is a problem of non-uniformity response between multiple channels for a time-delayed integration (TDI) charge-coupled device (CCD) imaging system. Due to this problem, a correction method research based on radiometric calibration is conducted. A theoretical model for correction is deduced according to the flow of signal processing. A correction method is proposed based on weighted least square, which needs to acquire three sets of image data in , and saturation. Three sets of correction parameters are fitted by weighted least square using Gaussian weighting function to achieve the optimized parameters. The experimental verification is carried out using a TDI CCD imaging system. The results show that the photo response non-uniformity reduces from 4.09% to 0.85%, which is better than 1.93% obtained by two-point correction method. And it has a good performance in wide response range with advantages of high precision and good practicability. This method can be applied in many kinds of airborne or spaceborne camera payloads and lay the technical foundation to achieve high-quality remote sensing image data. 2017, Chinese Lasers Press. All right reserved.
Indexed Byei
Language中文
Document Type期刊论文
Identifierhttp://ir.ciomp.ac.cn/handle/181722/59482
Collection中科院长春光机所知识产出
Recommended Citation
GB/T 7714
Zheng, L.,G. Jin,H. Qu and G. Zhang. doi: Non-Uniformity Correction for Multi-Channel TDI CCD Imaging System in Wide Response Range[J]. Guangxue Xuebao/Acta Optica Sinica,2017,37(11).
APA Zheng, L.,G. Jin,&H. Qu and G. Zhang.(2017).doi: Non-Uniformity Correction for Multi-Channel TDI CCD Imaging System in Wide Response Range.Guangxue Xuebao/Acta Optica Sinica,37(11).
MLA Zheng, L.,et al."doi: Non-Uniformity Correction for Multi-Channel TDI CCD Imaging System in Wide Response Range".Guangxue Xuebao/Acta Optica Sinica 37.11(2017).
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