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Discrete Graphical Models for Alphabet-Based Multisensory Data Fusion and Classification

Makarau, Aliaksei and Palubinskas, Gintautas and Reinartz, Peter (2011) Discrete Graphical Models for Alphabet-Based Multisensory Data Fusion and Classification. IEEE. International Symposium on Image and Data Fusion (ISIDF), 9-11 Aug 2011, Tengchong, China. ISBN 9781457709692

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Abstract

The way of multisensory data integration is a crucial step of any data fusion method. Different physical types of sensors (optic, thermal, acoustic, radar, etc.), different resolution, and different types of GIS digital data (elevation, vector maps, etc.) require a proper method for data integration. Incommensurability of the data may not allow to use conventional statistical methods for fusion and processing of the data. Correct and established way of multisensory data integration is required to deal with such incommensurable data, while employment of an inappropriate methodology may lead to errors in the fusion. To perform a proper multisensory data fusion several methods were developed (weighted Bayesian, linear (log linear) opinion pool, neural networks, fuzzy logic approaches, etc.). Employment of these approaches is motivated by weighted consensus theory, leading the fusion of incommensurable data to be performed in a correct way. In this paper data fusion is proposed to perform using a finite predefined domain – alphabet. Feature extraction (data fission) is performed separately on different sources of data. Extracted features are processed to be represented on the predefined domain (alphabet). Alternative method such as factor graph (discrete graphical model) is employed for data and feature aggregation. The nature of factor graphs in application on data coded on a finite domain allows us to obtain an improvement in accuracy of real data fusion and classification for multispectral high resolution WorldView-2, TerraSAR-X SpotLight, and elevation model.

Item URL in elib:https://elib.dlr.de/72750/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Discrete Graphical Models for Alphabet-Based Multisensory Data Fusion and Classification
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Makarau, Aliakseialiaksei.makarau (at) dlr.deUNSPECIFIED
Palubinskas, Gintautasgintautas.palubinskas (at) dlr.deUNSPECIFIED
Reinartz, Peterpeter.reinartz (at) dlr.deUNSPECIFIED
Date:August 2011
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-4
Publisher:IEEE
ISBN:9781457709692
Status:Published
Keywords:Multisensor data, fusion, classification, graphical models, factor graphs, WorldView-2, TerraSAR-X
Event Title:International Symposium on Image and Data Fusion (ISIDF)
Event Location:Tengchong, China
Event Type:international Conference
Event Dates:9-11 Aug 2011
Organizer:Chinese Academy of Surveying and Mapping (CASM), ISPRS WG VII/6 - Remote Sensing Data Fusion
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben hochauflösende Fernerkundungsverfahreen (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Photogrammetry and Image Analysis
Deposited By: Makarau, Aliaksei
Deposited On:13 Dec 2011 08:28
Last Modified:31 Jul 2019 19:34

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