| 伪恒定物体(PIF)方法在遥感影像辐射匹配中的应用 |
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| 引用本文： | 朱云燕,贺彬,赵碧云.伪恒定物体(PIF)方法在遥感影像辐射匹配中的应用[J].云南环境科学,2002,21(2):12-14. |
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| 作者姓名： | 朱云燕 贺彬 赵碧云 |
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| 作者单位： | 云南省环境科学研究所 云南昆明650034
(朱云燕，贺彬)，云南省环境科学研究所 云南昆明650034(赵碧云) |
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| 摘 要： | 伪恒定物体（PIF）方法基于影像上人造物体像元反射率的统计不变量，假定影像间同一人造物体像元的亮度值呈线性函数关系，通过数理统计方法，校正多时相、多波段影像之间的大气、光照和传感器参数差异，达成影像之间的辐射匹配。在滇池蓝藻遥感动态监测中主要运用了此方法。
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| 关 键 词： | 伪恒定物体 PIF 遥感影像 辐射匹配 滇池 环境监测 |
| 文章编号： | 1006-947X(2002)02-0012-03 |
| 修稿时间： | 2001年10月8日 |
Application of Radiometric Scene Normalization Using Pseudoinvariant Features |
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| ZHU Yun-yan,HE Bin,ZHAO Bi-yun.Application of Radiometric Scene Normalization Using Pseudoinvariant Features[J].Yunnan Environmental Science,2002,21(2):12-14. |
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| Authors: | ZHU Yun-yan HE Bin ZHAO Bi-yun |
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| Abstract: | The technique of pseudoinvariant features corrects for atmospheric degradation,illumination effects,and sensor response differences in multitemporal multispectral images.The technique is based on the statistical invariance of the reflectance of man-made in-scene elements such as roads,rooftops and parking lots which covered with concrete or asphalt.Differences in the gray-level distributions of these invariant objects is assumed to be a linear function and is corrected statisically to perform the normalization.The technique has been used in the monitoring of Dianchi Lake. |
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| Keywords: | PIF remote sensing image radiometric scene normalization Dianchi |
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