Changchun Institute of Optics,Fine Mechanics and Physics,CAS
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 | |
发表期刊 | Guangxue Xuebao/Acta Optica Sinica |
卷号 | 37期号:11 |
摘要 | There 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. |
收录类别 | ei |
语种 | 中文 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ciomp.ac.cn/handle/181722/59482 |
专题 | 中科院长春光机所知识产出 |
推荐引用方式 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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Non Uniformity Corre(869KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 |
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