《Table 3 Metadata summary of MDD_MARS1.0》

《Table 3 Metadata summary of MDD_MARS1.0》   提示:宽带有限、当前游客访问压缩模式
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《时空谱多维数据格式(MDD)结构与计算机配套系统》


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The functions of the MDA tool include the construction,opening,and conversion of the MDD formatted data,the extraction of the spectrum,the determination of the spectral and characteristic parameters from the MDD,the visualization of the MDD in the time and spectral dimensions,and the corresponding time spectrum and spectrum extraction,display,and analysis.This module can convert the remote sensing dataset of the original or pretreated long time series into the MDD,and extract the temporal variation of the information such as the spectrum in different spatial ranges.The MDD uses five different storage structures for different applications,and so can quickly and effectively perform an MDA,and extract and display data through the module format conversion function and follow-up operations.On the basis of the constructed MDD,the spectral feature parameter extraction function can be used to extract the temporal variation of a spectral characteristic parameter(such as the normalized difference vegetation index(NDVI),ratio vegetation index(RVI),etc.),construct the characteristic parameter cube,and use gray or false color synthesis.The feature parameters are displayed to show the characteristic parameters of any pixel in an interactive manner.The three-dimensional cube data can be extracted from the MDD space-temporal four-dimensional data by a spectral cube or time cube extraction function,and the data can be processed and analyzed in a format supported by commonly used remote sensing software.The menu items and their functions in the MDA module in the MARS 1.0 software are shown in Table 4.