2014
DOI: 10.1007/s12518-014-0149-5
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Systematic approach towards extracting endmember spectra from hyperspectral image using PPI and SMACC and its evaluation using spectral library

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Cited by 9 publications
(4 citation statements)
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“…The endmember spectra corresponding to in situ crop traits were generated using a sequential maximum angle convex cone (SMACC) [68]. Compared with the pixel purity index (PPI), the SMACC shows better performance in extracting endmembers of vegetation from hyperspectral imagery [69]. During endmember collection, an inner buffer distance of 1 m from the borders was excluded, and a mean spectrum of thirty endmembers from each plot was taken to attain accuracy.…”
Section: Field Experimentation and Uav Image Acquisitionmentioning
confidence: 99%
“…The endmember spectra corresponding to in situ crop traits were generated using a sequential maximum angle convex cone (SMACC) [68]. Compared with the pixel purity index (PPI), the SMACC shows better performance in extracting endmembers of vegetation from hyperspectral imagery [69]. During endmember collection, an inner buffer distance of 1 m from the borders was excluded, and a mean spectrum of thirty endmembers from each plot was taken to attain accuracy.…”
Section: Field Experimentation and Uav Image Acquisitionmentioning
confidence: 99%
“…Ansan Reed Wetland serves as a wetland park, aimed at treating non-point pollutants and providing habitats for organisms in the surrounding basin. Currently, the wetland supports the distribution of 290 species of vegetation and accommodates 150 species of migratory birds [35].…”
Section: Study Sitementioning
confidence: 99%
“…Firstly, based on Vegetation (V)-Impervious surface (I)-Soil (S) (V-I-S) model [22], the vegetation, impervious surface, and bare soil are selected as the basic endmember, among which the impervious surfaces are anthropogenic features, such as rooftops, roads, driveways, sidewalks, and so on. Secondly, the original endmember spectral library is obtained using the pure pixel index (PPI) and image scatter plot [23]. Thirdly, the values of three indexes—Count-Based Index (CoBI), endmember Average RMSE (EAR), and Minimum Average Spectral Angle (MASA)—are calculated.…”
Section: Description Of Iestarfmmentioning
confidence: 99%