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Automatic Image-to-Image Registration of Near-Real-Time SAR Images

Wessel, Birgit and Huber, Martin and Roth, Achim (2007) Automatic Image-to-Image Registration of Near-Real-Time SAR Images. In: Proceedings (ESA SP-636, July 2007), CD 1. Envisat Symposium 2007, 2007-04-23 - 2007-04-27, Montreux, Switzerland. ISBN 92-9291-200-1 ISSN 1609-042X

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Official URL: http://www.congrex.nl/07A03/

Abstract

This paper deals with the registration of near-real-time satellite SAR images by an automatic image-to-image matching approach. The approach is dedicated to crisis mapping applications where the task is to register near real-time (NRT) SAR images within some hours against a reference image. Our registration strategy consists of the following steps: Feature extraction and matching between a NRT image and an image with precise orbit. The resultant points of the reference image are used as ground control points (GCPs) to adjust the SAR imaging geometry. Then, geocoding of the NRT SAR image can be carried out. The main task is to find a feature extractor which performs well on SAR data. We use a new point operator for feature extraction to extract scale- and rotation-invariant features (SIFT features). The results show that the approach can deal with a wide range of scenes even with different SAR sensors and different incidence angles.

Item URL in elib:https://elib.dlr.de/48677/
Document Type:Conference or Workshop Item (Speech)
Title:Automatic Image-to-Image Registration of Near-Real-Time SAR Images
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wessel, BirgitUNSPECIFIEDUNSPECIFIED
Huber, MartinUNSPECIFIEDUNSPECIFIED
Roth, AchimUNSPECIFIEDUNSPECIFIED
Date:July 2007
Journal or Publication Title:Proceedings (ESA SP-636, July 2007)
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:CD 1
Editors:
EditorsEmail
ESA, UNSPECIFIED
ISSN:1609-042X
ISBN:92-9291-200-1
Status:Published
Keywords:Registration, GCPs, SAR images
Event Title:Envisat Symposium 2007
Event Location:Montreux, Switzerland
Event Type:international Conference
Event Dates:2007-04-23 - 2007-04-27
Organizer:ESA
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 - Projekt TerraSAR-X Kalibration und Projektunterstützung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Environment and Security > Environment and Geoinformation
Deposited By: Wessel, Dr.-Ing. Birgit
Deposited On:27 Aug 2007
Last Modified:31 Jul 2019 19:19

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