Natural resource earth surface coverage-oriented pixel spectrum library construction method and system
The invention provides a natural resource earth surface coverage-oriented pixel spectrum library construction method, which comprises the following steps of: on the basis of territorial three-tone adjustment or geographical condition or other natural resource earth surface coverage space vector data...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a natural resource earth surface coverage-oriented pixel spectrum library construction method, which comprises the following steps of: on the basis of territorial three-tone adjustment or geographical condition or other natural resource earth surface coverage space vector data, obtaining pixel acquisition points with relatively good homogeneity by adopting methods of pattern spot screening, pixel acquisition point purification and the like; and forming a pixel spectrum library containing attribute information of different dimensions such as time, space, spectrum, identification and the like. The method is not influenced by error superposition in hyperspectral image radiation correction and atmospheric correction, and a mass pixel spectrum library is provided for fine recognition of natural resource earth surface coverage.
本发明提供了一种面向自然资源地表覆盖的像元光谱库构建方法,本发明基于国土三调或地理国情或其他自然资源地表覆盖空间矢量数据为基础,采用图斑筛选、像元采集点净化等方法,获得均质性较好的像元采集点,并形成包含时间、空间、光谱、标识等不同维度属性信息的像元光谱库。该方法不受高光谱影像辐射校正、大气校正中误差叠加影响,为自然资源地表覆盖精细识 |
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