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Title: Novel Approaches for Spectral Unmixing of Hyperspectral Data
Researcher: Bhatt, Jignesh Shashikant
Guide(s): Joshi, Manjunath V.
Keywords: Novel Approaches
Hyperspectral Data
Spectral Signature
Hyperspectral Sensors
University: Dhirubhai Ambani Institute of Information and Communication Technology (DA-IICT)
Completed Date: 2014
Abstract: This thesis addresses the problem of spectral unmixing of remotely sensed hyperspectral data. The spectral unmixing has the objective of quantifying the reectance properties of di_erent materials on the earth. Complete spectral unmixing includes estimating the number of constituent materials in the data, extracting their spectral signatures called endmembers, and estimating their contributing ground cover fractions called abundances from each location of the acquired scene. The need of spectral unmixing has been fostered with the development of powerful hyperspectral sensors in the field of remote sensing. These hyperspectral imagers acquire a set of co-registered images of a scene with hundreds of narrow and contiguous bands covering the visible, the near-infrared, and the mid-infrared wavelengths of the electromagnetic spectrum. Due to limited spatial (ground) resolution supported by the high altitude sensors, the materials are often spatially mixed. One can unmix them using algorithmic approaches without the need for spatial resolution enhancement. This thesis contributes new methodologies for decomposing the hyperspectral data into its constituent entities and also provides a unified framework for the complete spectral unmixing of the data. This kind of analysis yields myriad of data products in remote sensing, defense and military, agricultural development, urban planning, and in many other areas.
Pagination: xvi, 146 p.
Appears in Departments:Department of Information and Communication Technology

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02_declarartion and certificate.pdf46.01 kBAdobe PDFView/Open
03_acknowledgements.pdf72.52 kBAdobe PDFView/Open
04_abstract.pdf73.86 kBAdobe PDFView/Open
05_contents.pdf98.04 kBAdobe PDFView/Open
06_list of figures.pdf313 kBAdobe PDFView/Open
07_list of tables.pdf135.32 kBAdobe PDFView/Open
08_chapter 1.pdf1.25 MBAdobe PDFView/Open
09_chapter 2.pdf223.25 kBAdobe PDFView/Open
10_chapter 3.pdf561.13 kBAdobe PDFView/Open
11_chapter 4.pdf1.39 MBAdobe PDFView/Open
12_chapter 5.pdf949.62 kBAdobe PDFView/Open
13_chapter 6.pdf2.08 MBAdobe PDFView/Open
14_chapter 7.pdf84.06 kBAdobe PDFView/Open
15_bibliography.pdf239.05 kBAdobe PDFView/Open
16_list of publications.pdf79.83 kBAdobe PDFView/Open
17_achievements.pdf57.08 kBAdobe PDFView/Open

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