WO2018028191A8 - 一种基于波段比模型和太阳高度角的tavi计算方法 - Google Patents
一种基于波段比模型和太阳高度角的tavi计算方法 Download PDFInfo
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- WO2018028191A8 WO2018028191A8 PCT/CN2017/076022 CN2017076022W WO2018028191A8 WO 2018028191 A8 WO2018028191 A8 WO 2018028191A8 CN 2017076022 W CN2017076022 W CN 2017076022W WO 2018028191 A8 WO2018028191 A8 WO 2018028191A8
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- tavi
- elevation angle
- waveband
- solar elevation
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- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
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- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
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Abstract
一种基于波段比模型和太阳高度角的TAVI计算方法,包括以下步骤:影像预处理得到遥感影像表观反射率数据,分析影像质量与数值分布,计算阴影植被指数SVI,构建TAVI组合算法:TAVI=Bir/Br+f(Δ)⋅1/Br,用太阳高度角计算调节因子f(Δ),最后得到抗地形影响的TAVI植被信息;TAVI由RVI和SVI两个波段比子模型构成,分母都为遥感影像红光波段数据,调节因子f(Δ)以太阳高度角作为计算参数,并引入传感器因子,具有较强的物理意义;该TAVI计算方法无需DEM数据和遥感影像分类,同时不依赖于地面调查数据,并确保TAVI能有效消除地形影响对植被信息的干扰,避免了由于遥感影像与DEM数据配准精度差异导致的地物植被信息反演精度下降的问题。
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US15/740,011 US10527542B2 (en) | 2016-08-10 | 2017-03-19 | Method of calculating TAVI based on a band ratio model and solar altitude angle |
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CN201610648417.8 | 2016-08-10 | ||
CN201610648417.8A CN106324614B (zh) | 2016-08-10 | 2016-08-10 | 一种新的tavi组合算法 |
CN201611127461.0A CN106600586B (zh) | 2016-12-09 | 2016-12-09 | 一种基于太阳高度角的tavi调节因子算法 |
CN201611127461.0 | 2016-12-09 |
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WO2018028191A1 WO2018028191A1 (zh) | 2018-02-15 |
WO2018028191A8 true WO2018028191A8 (zh) | 2023-03-30 |
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