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Volume 36 Issue 12
Dec.  2010
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Journal of Beijing University of Aeronautics and Astronautics  > 2010  >  36(12): 1457-1460.
Li Na, Zhao Huijie. Endmember extraction method based on morphology and orthogonal subspace projection[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(12): 1457-1460. (in Chinese)
Citation: Li Na, Zhao Huijie. Endmember extraction method based on morphology and orthogonal subspace projection[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(12): 1457-1460. (in Chinese)
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Endmember extraction method based on morphology and orthogonal subspace projection

  • School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 12 Nov 2009
  • Publish Date: 30 Dec 2010
    Abstract
  • An automatic endmember extraction method based on the extended morphology and the orthogonal subspace projection was proposed to solve the problems, including identification of different endmembers with similar spectra and the endmembers extraction used by the spectral or spatial information only. Extended dilation and erosion operators were used to calculate the morphological eccentricity index (MEI), and the MEI was used to extract the endmember set. Spectral angle matching (SAM) was applied to distinguish different endmembers, and then the endmember was projected to its orthogonal subspace to eliminate the effect of endmembers that had been extracted. The airborne hyperspectral data was used to evaluate the performance of this method. The results illuminate that image endmembers are extracted automatically without any prior information and endmembers with similar spectra are distinguished effectively.

     

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  • [1] 李娜.高光谱遥感数据精确建模与应用处理技术研究 .北京:北京航空航天大学仪器科学与光电工程学院,2008 Li Na.Research on accurate modeling and its applications for hyperspectral remote sensing data .Beijing:School of Instrument Science and Opto-electronics Engineering,Beijing University of Aeronautics and Astronautics,2008 [2] Chein-I Chang.Hyperspectral data exploitation: theory and applications [M].Hoboken,New Jersey:John Wiley & Sons Inc,2007:175-204 [3] Plaza A,Pablo M,Rosa M P,et al.Spatial/spectral endmember extraction by multidimensional morphological operations [J].IEEE Transactions on Geoscience and Remote Sensing,2002,40(9): 2025-2041 [4] Plaza A,Pablo M,Rosa M P,et al.Dimensionality reduction and classification of hyperspectral image data using sequences of extended morphological transformations[J].IEEE Transactions on Geoscience and Remote Sensing,2005,43(3): 466-479 [5] Chein-I Chang.Orthogonal subspace projection (OSP) revisited: a comprehensive study and analysis [J].IEEE Transactions on Geoscience and Remote Sensing,2005,43(3): 502-518
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