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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/3549

Title: Spectral unmixing: estimating partial abundances
Authors: Debba, P
Keywords: Spectral unmixing
End-member spectra
Synthetic mixtures
Spectral reflectance vector
Computed abundance vector
Linear spectral mixture analysis
LSMA
Minerals
Built Environment CSIR
Issue Date: 2009
Citation: Debba, P. 2009. Spectral unmixing: estimating partial abundances. Logistics and Quantitative Methods (LQM) Seminar Presentation 2009, Built Environment, CSIR. pp 1-22
Abstract: Most spectral unmixing techniques are variants of algorithms involving matrix inversion. Major problem in spectral unmixing is the non-orthogonality of end-members. The ability to estimate abundances in complex mixtures through spectral unmixing techniques is complicated when considering very similar spectral signatures. Iron-bearing oxide/hydroxide/sulfate minerals have similar spectral signatures. The study focuses on how could estimates of abundances of spectrally similar iron-bearing oxide/hydroxide/sulfate minerals in complex mixtures be obtained using hyperspectral data?
Description: This presentation was presented at the Logistics and Quantitative Methods (LQM Seminar at the CSIR
URI: http://hdl.handle.net/10204/3549
Appears in Collections:Logistics and quantitative methods
General science, engineering & technology

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