Masked Correlation for Improvement of 2D Glacier Motion Estimation Based on Terrasar-x Imagery
In this paper, the impacts of the non-glacier information in the template window used in cross-correlation calculation for 2D motion estimation of glaciers are discussed and illustrated by the example of the Taku glacier, which is the biggest glacier in the Juneau Icefield, Alaska. For this, the gla...
Published in: | ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00018947 2023-05-15T16:20:23+02:00 Masked Correlation for Improvement of 2D Glacier Motion Estimation Based on Terrasar-x Imagery Fang, L. Stilla, U. 2014-09 electronic https://doi.org/10.5194/isprsannals-II-7-9-2014 https://noa.gwlb.de/receive/cop_mods_00018947 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00018902/isprsannals-II-7-9-2014.pdf https://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/II-7/9/2014/isprsannals-II-7-9-2014.pdf eng eng Copernicus Publications ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences -- ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences -- http://www.isprs.org/publications/annals.aspx -- 2194-9050 https://doi.org/10.5194/isprsannals-II-7-9-2014 https://noa.gwlb.de/receive/cop_mods_00018947 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00018902/isprsannals-II-7-9-2014.pdf https://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/II-7/9/2014/isprsannals-II-7-9-2014.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2014 ftnonlinearchiv https://doi.org/10.5194/isprsannals-II-7-9-2014 2022-02-08T22:52:55Z In this paper, the impacts of the non-glacier information in the template window used in cross-correlation calculation for 2D motion estimation of glaciers are discussed and illustrated by the example of the Taku glacier, which is the biggest glacier in the Juneau Icefield, Alaska. For this, the glacier motion maps are extracted by the traditional normalized cross-correlation technique and the masked cross-correlation method, which uses a manually generated binary mask to threshold the non-glacier pixels, based on geocoded high resolution TerraSAR-X images. Based on the comparison of the different results, it was found that without the disturbing information (e.g., mountain, water) the accuracy of the cross-correlation of sequential patches in masked cross-correlation method is improved and the estimation results are much more reasonable, which respect the law that glacier flows like a river with higher velocity in the middle and than that in the sides. Article in Journal/Newspaper glacier glaciers Alaska Niedersächsisches Online-Archiv NOA Juneau Icefield ENVELOPE(-134.254,-134.254,58.916,58.916) Taku ENVELOPE(-133.854,-133.854,59.633,59.633) ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences II-7 9 13 |
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Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Fang, L. Stilla, U. Masked Correlation for Improvement of 2D Glacier Motion Estimation Based on Terrasar-x Imagery |
topic_facet |
article Verlagsveröffentlichung |
description |
In this paper, the impacts of the non-glacier information in the template window used in cross-correlation calculation for 2D motion estimation of glaciers are discussed and illustrated by the example of the Taku glacier, which is the biggest glacier in the Juneau Icefield, Alaska. For this, the glacier motion maps are extracted by the traditional normalized cross-correlation technique and the masked cross-correlation method, which uses a manually generated binary mask to threshold the non-glacier pixels, based on geocoded high resolution TerraSAR-X images. Based on the comparison of the different results, it was found that without the disturbing information (e.g., mountain, water) the accuracy of the cross-correlation of sequential patches in masked cross-correlation method is improved and the estimation results are much more reasonable, which respect the law that glacier flows like a river with higher velocity in the middle and than that in the sides. |
format |
Article in Journal/Newspaper |
author |
Fang, L. Stilla, U. |
author_facet |
Fang, L. Stilla, U. |
author_sort |
Fang, L. |
title |
Masked Correlation for Improvement of 2D Glacier Motion Estimation Based on Terrasar-x Imagery |
title_short |
Masked Correlation for Improvement of 2D Glacier Motion Estimation Based on Terrasar-x Imagery |
title_full |
Masked Correlation for Improvement of 2D Glacier Motion Estimation Based on Terrasar-x Imagery |
title_fullStr |
Masked Correlation for Improvement of 2D Glacier Motion Estimation Based on Terrasar-x Imagery |
title_full_unstemmed |
Masked Correlation for Improvement of 2D Glacier Motion Estimation Based on Terrasar-x Imagery |
title_sort |
masked correlation for improvement of 2d glacier motion estimation based on terrasar-x imagery |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/isprsannals-II-7-9-2014 https://noa.gwlb.de/receive/cop_mods_00018947 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00018902/isprsannals-II-7-9-2014.pdf https://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/II-7/9/2014/isprsannals-II-7-9-2014.pdf |
long_lat |
ENVELOPE(-134.254,-134.254,58.916,58.916) ENVELOPE(-133.854,-133.854,59.633,59.633) |
geographic |
Juneau Icefield Taku |
geographic_facet |
Juneau Icefield Taku |
genre |
glacier glaciers Alaska |
genre_facet |
glacier glaciers Alaska |
op_relation |
ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences -- ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences -- http://www.isprs.org/publications/annals.aspx -- 2194-9050 https://doi.org/10.5194/isprsannals-II-7-9-2014 https://noa.gwlb.de/receive/cop_mods_00018947 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00018902/isprsannals-II-7-9-2014.pdf https://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/II-7/9/2014/isprsannals-II-7-9-2014.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/isprsannals-II-7-9-2014 |
container_title |
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
container_volume |
II-7 |
container_start_page |
9 |
op_container_end_page |
13 |
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1766008299687247872 |