Assessment of DEMs produced by medium resolution optical sensors considering land cover classes

A digital elevation model (DEM) presents immense data proving three dimensional terrain structure of any part of the Earth. DEMs are obtained by two main methods in space-borne remote sensing as stereoscopy using optical or radar imagery and interferometric synthetic aperture radar (InSAR) technology. In fact, the primary product of space-borne remote sensing techniques is a digital surface model (DSM) that contains points located on the top of ground objects. By removing these points that do not belong to the bare ground, the DEM is obtained. In optical imagery, DSMs are generated based on stereo matching using ground control points and co-located clear tie points at stereo image-pair with high correlation. In this case, correlation comes into prominence and affects the success of DSM acquired by stereoscopy. This investigation aims to assess the quality of DEMs produced by medium resolution spatial data derived from optical imagery depending upon the effect of correlation in stereoscopy correspondingly the land cover types. Towards this purpose, land cover classes have been generated such as open, forest, built-up, road network and rocky regions, DSM-DEM conversion was applied by optimal filtering methods and DEM accuracies have been achieved separately. The analyses were realized using actual ASTER GDEM Version 2 with 30m original grid spacing in Zonguldak, Turkey including rugged topography and suitable land cover classes. For the verification, a reference DEM derived from 1/1000 scaled aerial photos was employed.

Dergi Adı 33rd Asian Conference on Remote Sensing 2012, ACRS 2012
Dergi Cilt Bilgisi 1
Sayfalar 923 - 928
Yayın Yılı 2012
Eser Adı
[dc.title]
Assessment of DEMs produced by medium resolution optical sensors considering land cover classes
Yayın Türü
[dc.type]
conferenceObject
Açıklama
[dc.description]
ATHI TELECOM;e-geos;Thales Alenia Space;TELESPAZIO;SPACEALLIANCE
Açıklama
[dc.description]
33rd Asian Conference on Remote Sensing 2012, ACRS 2012 -- 26 November 2012 through 30 November 2012 -- Pattaya -- 97670
Özet
[dc.description.abstract]
A digital elevation model (DEM) presents immense data proving three dimensional terrain structure of any part of the Earth. DEMs are obtained by two main methods in space-borne remote sensing as stereoscopy using optical or radar imagery and interferometric synthetic aperture radar (InSAR) technology. In fact, the primary product of space-borne remote sensing techniques is a digital surface model (DSM) that contains points located on the top of ground objects. By removing these points that do not belong to the bare ground, the DEM is obtained. In optical imagery, DSMs are generated based on stereo matching using ground control points and co-located clear tie points at stereo image-pair with high correlation. In this case, correlation comes into prominence and affects the success of DSM acquired by stereoscopy. This investigation aims to assess the quality of DEMs produced by medium resolution spatial data derived from optical imagery depending upon the effect of correlation in stereoscopy correspondingly the land cover types. Towards this purpose, land cover classes have been generated such as open, forest, built-up, road network and rocky regions, DSM-DEM conversion was applied by optimal filtering methods and DEM accuracies have been achieved separately. The analyses were realized using actual ASTER GDEM Version 2 with 30m original grid spacing in Zonguldak, Turkey including rugged topography and suitable land cover classes. For the verification, a reference DEM derived from 1/1000 scaled aerial photos was employed.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Yılı
[dc.date.issued]
2012
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/4369
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Accuracy
Konu Başlıkları
[dc.subject]
ASTER GDEM
Konu Başlıkları
[dc.subject]
Classification
Konu Başlıkları
[dc.subject]
DEM
Konu Başlıkları
[dc.subject]
Land cover
Konu Başlıkları
[dc.subject]
Stereoscopy
Yazar
[dc.contributor.author]
Sefercik U.
Yazar
[dc.contributor.author]
Bayik C.
Yazar
[dc.contributor.author]
Ozendi M.
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
Yazar Departmanı
[dc.contributor.department]
Zonguldak Bülent Ecevit Üniversitesi
İlk Sayfa Sayısı
[dc.identifier.startpage]
923
Son Sayfa Sayısı
[dc.identifier.endpage]
928
Dergi Adı
[dc.relation.journal]
33rd Asian Conference on Remote Sensing 2012, ACRS 2012
Dergi Cilt Bilgisi
[dc.identifier.volume]
1
ISBN
[dc.identifier.isbn]
9781622769742
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
7
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
02 Şubat 2024 23:37
Google Kontrol
Tıklayınız
points stereoscopy imagery ground optical correlation derived generated stereo classes digital obtained methods space-borne remote sensing built-up reference forest suitable verification spacing purpose 1/1000 scaled topography Towards aerial photos correspondingly effect depending employed spatial network
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.

creativecommons
Bu site altında yer alan tüm kaynaklar Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.
Platforms