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浏览/检索结果: 共5条，第1-5条 帮助 限定条件 专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Precision Analysis and Experiment of Focusing Mechanism of Space Hyperspectral Camera 期刊论文 Jixie Gongcheng Xuebao/Journal of Mechanical Engineering, 2019, 卷号: 55, 期号: 12, 页码: 29-36 作者:  K.Wang;  M.Xu;  P.Xie;  Z.Xu;  S.Tao 收藏  |  浏览/下载：1/0  |  提交时间：2020/08/24 Dynamics,Cameras,CMOS integrated circuits,Focusing,Hyperspectral imaging,Testing   Influence of electronic nonlinearities of space camera on MTF and their discriminance 期刊论文 Guangxue Jingmi Gongcheng/Optics and Precision Engineering, 2015, 卷号: 23, 期号: 11, 页码: 3219-3226 作者:  Li, J.-L.;  Y.-F. Guo;  J.-Q. Li and T.-J. Lan 收藏  |  浏览/下载：7/0  |  提交时间：2016/08/24 大比例尺立体测绘缩比相机主支撑结构设计 学位论文 硕士: 中国科学院大学, 2015 作者:  席佳利 收藏  |  浏览/下载：23/0  |  提交时间：2016/04/11 主支撑结构  随机响应  动力学优化设计  立体测绘相机  离轴 三反相机  桁架   空间粘滞液体阻尼隔振器研究 学位论文 硕士: 中国科学院大学, 2014 陈涛 收藏  |  浏览/下载：72/0  |  提交时间：2015/05/03 光学载荷  隔振器  阻尼系数  有限元分析  振动实验   Research on the nonuniformity correction of linear TDI CCD remote camera (EI CONFERENCE) 会议论文 Advanced Materials and Devices for Sensing and Imaging II, November 8, 2004 - November 10, 2004, Beijing, China Ya-xia L.; Zhi-hang H. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25 Many applications  such as industrial inspection and overhead reconnaissance benefit from line scanning architectures where time delay integration (TDI) significantly improves sensitivity[5]. Images with linear response have become the backbone of the imaging industry. But each pixel of the TDI CCD has unique light sensitivity characteristics. Because these characteristics and the lens of the optical system affect camera's linearization and its performance  they must be removed through calibration. The process by which a CCD image is calibrated is known as nonuniformity correction. This paper discusses several methods of nonuniformity correction[2]. The first is one-point correction technique  which requires only one calibration point. This approach is to shift each curve toward the nominal curve by subtracting the offset from or adding the offset to the average. The second is two-point correction technique  which requires two calibration points. Each point is rotated and aligned so that all the detectors have the same response under the same radiance. The third is multipoint correction. It is recommended that more calibration points be implemented at appropriate regions of the response curve. Depend on the linear photoelectric response of the TDI CCD  we use two-point calibration and the standard deviations for the images are given before and after the correction.