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Spectral-Spatial Joint Sparsity Unmixing of Hyperspectral Data using Overcomplete Dictionaries

Bieniarz, Jakub and Aguilera, Esteban and Zhu, Xiao Xiang and Müller, Rupert and Reinartz, Peter (2014) Spectral-Spatial Joint Sparsity Unmixing of Hyperspectral Data using Overcomplete Dictionaries. WHISPERS 2014, 24.-27 Jun. 2014, Lausanne, Switzerland.

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Abstract

Sparse spectral unmixing can be modeled as a linear combination of endmembers contained in an overcomplete dictionary weighted by the corresponding sparse abundance vector. This method exploits the fact that there is only a small number of endmembers inside a pixel compared to the overcomplete endmember spectral dictionary. Since the information contained in hyperspectral pixels is often spatially correlated, in this work we propose to jointly estimate the sparse abundance vectors of neighboring hyperspectral pixels within a local window exploiting joint sparsity with common and noncommon endmembers. To demonstrate the efficiency of our framework, we perform experiments using both simulated and real hyperspectral data.

Item URL in elib:https://elib.dlr.de/94395/
Document Type:Conference or Workshop Item (Speech)
Title:Spectral-Spatial Joint Sparsity Unmixing of Hyperspectral Data using Overcomplete Dictionaries
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bieniarz, Jakubjakub.bieniarz (at) dlr.deUNSPECIFIED
Aguilera, Estebanesteban.aguilera (at) dlr.deUNSPECIFIED
Zhu, Xiao XiangDLR-IMF/TUM-LMFUNSPECIFIED
Müller, Rupertrupert.mueller (at) dlr.deUNSPECIFIED
Reinartz, Peterpeter.reinartz (at) dlr.deUNSPECIFIED
Date:2014
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-4
Status:Published
Keywords:Spectral unmixing, joint sparsity, overcomplete spectral dictionary.
Event Title:WHISPERS 2014
Event Location:Lausanne, Switzerland
Event Type:international Conference
Event Dates:24.-27 Jun. 2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben hochauflösende Fernerkundungsverfahren
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Photogrammetry and Image Analysis
Microwaves and Radar Institute
Microwaves and Radar Institute > SAR Technology
Deposited By: Bieniarz, Jakub
Deposited On:09 Jan 2015 10:03
Last Modified:31 Jul 2019 19:51

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