| 利用区域辐射特性优化获取光学遥感数据 |
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| 引用本文： | 冉琼,迟耀斌,吴双,文强.利用区域辐射特性优化获取光学遥感数据[J].遥感学报,2013,17(1):138-150. |
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| 作者姓名： | 冉琼 迟耀斌 吴双 文强 |
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| 作者单位： | 北京宇视蓝图信息技术有限公司,北京 100096;中国科学院 遥感与数字地球研究所,北京 100101;二十一世纪空间技术应用股份有限公司,北京 100096;二十一世纪空间技术应用股份有限公司,北京 100096 |
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| 基金项目： | 北京市科技计划项目(编号:Z111100065511001);国家科技支撑计划项目(编号:2011BAH23B01) |
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| 摘 要： | 通过分析成像过程及其影响因素,提出了对成像积分时间进行控制的优化成像方法。首先建立成像参数模型,探讨了模型参数计算、成像过程中模型参数的选择,分析了图像后处理问题,并利用北京一号小卫星进行了遥感数据优化获取实验。实验结果表明,根据地物特性进行成像参数优化后获取的图像具有更宽的动态范围和更高的辐射分辨率,信息量和信噪比也大幅增强。
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| 关 键 词： | 积分时间 成像控制 成像参数优化 动态范围 辐射分辨率 |
| 收稿时间： | 2011/12/27 0:00:00 |
| 修稿时间： | 2012/6/20 0:00:00 |
Optimized satellite image acquisition with regional reflectance characteristics |
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| RAN Qiong,CHI Yaobin,WU Shuang and WEN Qiang.Optimized satellite image acquisition with regional reflectance characteristics[J].Journal of Remote Sensing,2013,17(1):138-150. |
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| Authors: | RAN Qiong CHI Yaobin WU Shuang and WEN Qiang |
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| Institution: | Beijing Landview Mapping Information Technology Co. Ltd., Beijing 100096, China;Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China;Twenty First Century Aerospace Technology Co. Ltd., Beijing 100096, China;Twenty First Century Aerospace Technology Co. Ltd., Beijing 100096, China |
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| Abstract: | A parameter optimization method with adjustment of integration time is proposed with analysis of the imaging process and the affecting factors. An imaging parameter setting model is brought up. The model parameter calculation and selection are discussed. Specific post-processing of the images acquired with the proposed method is analyzed. Experiment is carried out with Beijing-1 small satellite data for optimized imaging and comparison. Results show that images acquired with the optimized method have wider dynamic range and higher radiometric resolution, and with advanced information entropy and signal noise ratio. |
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| Keywords: | integration time imaging control imaging parameter optimization dynamic range radiometric resolution |
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