Digital elevation model generation and accuracy assessment using aster satellite image

The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is on-board the National Aeronautics and Space Administration?s (NASA?s) Terra spacecraft that provides along-track digital stereo image data at 15m resolution. The ASTER digital stereo image could be used to generate digital...

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Main Author:	Ghasemnatajrokni, Komeil
Format:	Thesis
Language:	English
Published:	2010
Subjects:	QA76 Computer software
Online Access:	http://eprints.utm.my/id/eprint/12541/4/KomeilGhasemnatajrokniMFKM2010.pdf
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id	my-utm-ep.12541
record_format	uketd_dc
spelling	my-utm-ep.125412017-09-20T08:03:27Z Digital elevation model generation and accuracy assessment using aster satellite image 2010-07 Ghasemnatajrokni, Komeil QA76 Computer software The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is on-board the National Aeronautics and Space Administration?s (NASA?s) Terra spacecraft that provides along-track digital stereo image data at 15m resolution. The ASTER digital stereo image could be used to generate digital elevation model (DEM) that represents the terrain elevation in discrete form in three-dimensional (3D). This is the simplest form of 3D-terrain representation. In this study, DEM was generated from ASTER stereo image covering south of Malaysia and part of Singapore. The results were carried out using PCI Geomatica and ENVI softwares. The accuracy of generated DEM is highly depending on the number and accuracy of collected ground control points. The DEMs were generated using 25 ground control points. Also in this study, a high accuracy DEM was used as a base or reference value for accuracy assessment of the generated DEMs. For this purpose, the height of five (5) check points from the generated DEMs were used to compare them with the corresponding point of the high accuracy DEM to determine the accuracy of the generated DEMs. Results indicated that root mean square error (RMSE) is about ±4 meters. According to the image resolution of 15 m and selected number of check points (5), the result is acceptable and it could be used for various applications. 2010-07 Thesis http://eprints.utm.my/id/eprint/12541/ http://eprints.utm.my/id/eprint/12541/4/KomeilGhasemnatajrokniMFKM2010.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Geoinformation Science and Engineering Faculty of Geoinformation Science and Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QA76 Computer software
spellingShingle	QA76 Computer software Ghasemnatajrokni, Komeil Digital elevation model generation and accuracy assessment using aster satellite image
description	The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is on-board the National Aeronautics and Space Administration?s (NASA?s) Terra spacecraft that provides along-track digital stereo image data at 15m resolution. The ASTER digital stereo image could be used to generate digital elevation model (DEM) that represents the terrain elevation in discrete form in three-dimensional (3D). This is the simplest form of 3D-terrain representation. In this study, DEM was generated from ASTER stereo image covering south of Malaysia and part of Singapore. The results were carried out using PCI Geomatica and ENVI softwares. The accuracy of generated DEM is highly depending on the number and accuracy of collected ground control points. The DEMs were generated using 25 ground control points. Also in this study, a high accuracy DEM was used as a base or reference value for accuracy assessment of the generated DEMs. For this purpose, the height of five (5) check points from the generated DEMs were used to compare them with the corresponding point of the high accuracy DEM to determine the accuracy of the generated DEMs. Results indicated that root mean square error (RMSE) is about ±4 meters. According to the image resolution of 15 m and selected number of check points (5), the result is acceptable and it could be used for various applications.
format	Thesis
qualification_level	Master's degree
author	Ghasemnatajrokni, Komeil
author_facet	Ghasemnatajrokni, Komeil
author_sort	Ghasemnatajrokni, Komeil
title	Digital elevation model generation and accuracy assessment using aster satellite image
title_short	Digital elevation model generation and accuracy assessment using aster satellite image
title_full	Digital elevation model generation and accuracy assessment using aster satellite image
title_fullStr	Digital elevation model generation and accuracy assessment using aster satellite image
title_full_unstemmed	Digital elevation model generation and accuracy assessment using aster satellite image
title_sort	digital elevation model generation and accuracy assessment using aster satellite image
granting_institution	Universiti Teknologi Malaysia, Faculty of Geoinformation Science and Engineering
granting_department	Faculty of Geoinformation Science and Engineering
publishDate	2010
url	http://eprints.utm.my/id/eprint/12541/4/KomeilGhasemnatajrokniMFKM2010.pdf
_version_	1747814940134080512

Digital elevation model generation and accuracy assessment using aster satellite image

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