Filters








3,203 Hits in 6.7 sec

Earthquake Damage Detection in Built Environment: An Object-Oriented Approach Using Radar Imagery

Babak Mansouri
2013 Iranica Journal of Energy & Environment  
The parcels are extracted from aerial photos (stereography processing) then complemented and updated using VHR (very high resolution) optical satellite image (i.e. Quickbird imagery).  ...  Remote sensing technology has the capability of extracting buildings in urban scenes.  ...  Towards rapid citywide damage resolution radar imageries. mapping using neighborhood edge dissimilarities in very high-resolution optical satellite imagery -ACKNOWLEDGMENT Application to the 2003 Bam,  ... 
doi:10.5829/idosi.ijee.2013.04.03.16 fatcat:wpegil4gkzb25payi26aw2dcqm

Overview of the Special Issue on Applications of Remote Sensing Imagery for Urban Areas

Xinghua Li, Yongtao Yu, Xiaobin Guan, Ruitao Feng
2022 Remote Sensing  
Urban areas are the center of human settlement with intensive anthropic activities and dense built-up infrastructures, suffering significant evolution in population shift, land-use change, industrial production  ...  The results show that high accuracy of 95.29% can be achieved in building extraction.  ...  [10] analyzed the ability to utilize contextual features from very-high-spatial-resolution (<2 m) and medium-spatial-resolution (Sentinel-2, 10 m) imageries to model the urban attributes and population  ... 
doi:10.3390/rs14051204 fatcat:ugdfb7g3lzb3bdqo4ybrhsvvbi

Radargrammetric Extraction of Building Features from High Resolution Multi-aspect SAR Data

U. Soergel, E. Michaelsen, A. Thiele, U. Thoennessen
2006 2006 IEEE International Symposium on Geoscience and Remote Sensing  
A concept for the radargrammetric building analysis from high-resolution amplitude SAR imagery is proposed and results are presented.  ...  In this paper, the impact of high-resolution SAR data on the analysis of urban scenes is discussed.  ...  Brenner (FGAN-FHR Research Institute for High Frequency Physics and Radar Techniques) for providing the SAR data.  ... 
doi:10.1109/igarss.2006.931 fatcat:6ds2iqztvndhld2czdmlgbifti

ON THE CHALLENGES IN STEREOGRAMMETRIC FUSION OF SAR AND OPTICAL IMAGERY FOR URBAN AREAS

M. Schmitt, X. X. Zhu
2016 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
This paper discusses the challenges arising if SAR and optical imagery shall be fused for stereogrammetric 3D analysis of urban areas.  ...  After this challenge has been solved, the proposed method is expected to allow 3D reconstruction of urban areas from SAR-optical stereogrammetry for the first time.  ...  Futhermore, they want to thank Gerald Baier of TUM-SiPEO for filtering the SAR data.  ... 
doi:10.5194/isprsarchives-xli-b7-719-2016 fatcat:joji4qzxojhaxbqgltjbjyq3a4

ON THE CHALLENGES IN STEREOGRAMMETRIC FUSION OF SAR AND OPTICAL IMAGERY FOR URBAN AREAS

M. Schmitt, X. X. Zhu
2016 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
This paper discusses the challenges arising if SAR and optical imagery shall be fused for stereogrammetric 3D analysis of urban areas.  ...  After this challenge has been solved, the proposed method is expected to allow 3D reconstruction of urban areas from SAR-optical stereogrammetry for the first time.  ...  Futhermore, they want to thank Gerald Baier of TUM-SiPEO for filtering the SAR data.  ... 
doi:10.5194/isprs-archives-xli-b7-719-2016 fatcat:kdhb4wdcabcxzkgocyv25srfyi

Monitoring of "urban villages" in Shenzhen, China from high-resolution GF-1 and TerraSAR-X data

Chunzhu Wei, Thomas Blaschke, Hannes Taubenböck, Claudia Notarnicola, Simonetta Paloscia, Nazzareno Pierdicca
2015 SAR Image Analysis, Modeling, and Techniques XV  
In this study, we carried out a combined analysis of multispectral GaoFen-1 (GF-1) and high resolution TerraSAR-X radar (TSX) imagery to extract the urban village information.  ...  by 7% in urban area classification.  ...  ACKNOWLEDGEMENTS The TerraSAR-X data used for the analysis were provided by German Aerospace Center-DLR in the framework of the scientific proposal LAN2927.  ... 
doi:10.1117/12.2194877 dblp:conf/sar/WeiBT15 fatcat:xardclwoojeqddgvk27xli4c6q

Fusion of Multi-Temporal Interferometric Coherence and Optical Image Data for the 2016 Kumamoto Earthquake Damage Assessment

Nopphawan Tamkuan, Masahiko Nagai
2017 ISPRS International Journal of Geo-Information  
Urban areas were classified from pre-event interferometric coherence data.  ...  Results for urban areas were divided into three damage levels (e.g., none-slight, slight-heavy, heavy-destructive) at a high (90%) overall accuracy level.  ...  Acknowledgments: The assistance received from the Japan Aerospace Exploration Agency (JAXA) in acquiring the ALOS-2 PALSAR-2 images is gratefully acknowledged.  ... 
doi:10.3390/ijgi6070188 fatcat:vvwdaoqj3jfato7ctvxuyl2ory

SpaceNet 6: Multi-Sensor All Weather Mapping Dataset [article]

Jacob Shermeyer, Daniel Hogan, Jason Brown, Adam Van Etten, Nicholas Weir, Fabio Pacifici, Ronny Haensch, Alexei Bastidas, Scott Soenen, Todd Bacastow, Ryan Lewis
2020 arXiv   pre-print
We present a baseline and benchmark for building footprint extraction with SAR data and find that state-of-the-art segmentation models pre-trained on optical data, and then trained on SAR (F1 score of  ...  Despite all of these advantages, there is little open data available to researchers to explore the effectiveness of SAR for such applications, particularly at very-high spatial resolutions, i.e. <1m Ground  ...  The dataset covers heterogeneous geographies, including high-density urban environments, rural farming areas, suburbs, industrial areas and ports resulting in various building size, density, context and  ... 
arXiv:2004.06500v1 fatcat:olmad5jqevbmfcfpujosylmu4m

Urban areas enhancement in multitemporal SAR RGB images through a feedback system

Donato Amitrano, Gerardo Di Martino, Antonio Iodice, Daniele Riccio, Giuseppe Ruello
2015 2015 Joint Urban Remote Sensing Event (JURSE)  
benefits also in the process of buildings extraction.  ...  In this paper we introduce a feedback system for the enhancement of urban areas in Level-1α multitemporal RGB composite.  ...  The authors thank the Italian Aerospace Research Center (CIRA) for providing the dataset used in this work.  ... 
doi:10.1109/jurse.2015.7120527 dblp:conf/jurse/AmitranoMIRR15 fatcat:55ojnrqzwrffljdl7idqjpxcte

Geospatial intelligence about urban areas using SAR

A. C. van den Broek, R. J. Dekker, Manfred Ehlers, Ulrich Michel
2007 Remote Sensing for Environmental Monitoring, GIS Applications, and Geology VII  
high-resolution optical data.  ...  For this purpose we have used a digital surface model from Ikonos stereo imagery that contains building heights.  ...  Figure 2 . 1 . 21 Workflow for urban situational awareness using high resolution SAR imagery Figure 3 . 1 . 31 Areas of change in red overlay on a Radarsat 1 image (left) and interface of the change  ... 
doi:10.1117/12.738486 fatcat:cbfmvfhwsnckvcb46stjpz5hgq

High-Rise Building 3D Reconstruction with the Wrapped Interferometric Phase

Rui Guo, Fan Wang, Bo Zang, GuoBin Jing, Mengdao Xing
2019 Sensors  
Considering that the high-rise buildings in urban areas are quite common in big cities, it is of great importance to retrieve the three-dimension (3D) information of the urban high-rise buildings in urban  ...  Except for testing on a small urban area from the TanDEM-X data, the experiment carried on the single-pass InSAR wrapped phase in the wide urban scene, which was collected by the Chinese airborne N-SAR  ...  Introduction With the remarkable improvements in radar sensor, decimeter very-high-resolution (VHR) synthetic aperture radar (SAR) made it possible to map urban areas in very high level of detail [1]  ... 
doi:10.3390/s19061439 fatcat:tjvskwdhprhwfdcvdrqd3f7r3i

Detection and classification of urban structures based on high-resolution SAR imagery

A. Reigber, M. Jager, W. He, L. Ferro-Famil, O. Hellwich
2007 2007 Urban Remote Sensing Joint Event  
In this paper, several advanced methods for detecting and classifying urban structures in high-resolution SAR imagery are presented.  ...  As a third approach, a simple but powerful operator for detecting urban structures by analysing texture inhomogeneity in SAR images is developed.  ...  However, a remaining issue is how to extract information relevant to the analysis of urban areas from this edge map.  ... 
doi:10.1109/urs.2007.371819 fatcat:gwxpercpkffqnammveahsoneom

URBAN AREA EXTRACTION USING AIRBORNE X-BAND FULLY POLARIMETRIC PI-SAR2 IMAGERY

J. Susaki, M. Kishimoto
2015 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
It is known that very high resolution (VHR) SAR can extract buildings, but it requires more processes to map urban areas that should include other objects.  ...  In this paper, we present a method to extract urban areas from X-band fully polarimetric synthetic aperture radar (SAR) data.  ...  ACKNOWLEDGEMENTS This research was supported in part by a program of the PiSAR-2 research announcement of NICT, Japan.  ... 
doi:10.5194/isprsarchives-xl-3-w2-219-2015 fatcat:fjcf664a2bcu5oqdrwmtw5spjy

High-Resolution Urban Land Mapping in China from Sentinel 1A/2 Imagery Based on Google Earth Engine

Zhongchang Sun, Ru Xu, Wenjie Du, Lei Wang, Dengsheng Lu
2019 Remote Sensing  
Our method demonstrated the effectiveness of using a fusion of optical and SAR data for large area urban land extraction especially in areas where optical data fail to distinguish urban land from spectrally  ...  The fusion of optical and synthetic aperture radar (SAR) data for large-area high-resolution urban land mapping has not yet been widely explored.  ...  In these regions, other non-urban land covers were affected by high-intensity brightness produced by tall buildings in the SAR images, resulting in misclassification from non-urban to urban land.  ... 
doi:10.3390/rs11070752 fatcat:44cm6y55fzdavhyovlsjfyknt4

Sentinel-1 InSAR Coherence to Detect Floodwater in Urban Areas: Houston and Hurricane Harvey as A Test Case

Marco Chini, Ramona Pelich, Luca Pulvirenti, Nazzareno Pierdicca, Renaud Hostache, Patrick Matgen
2019 Remote Sensing  
in urbanized areas.  ...  For the first time the comparison with independent data shows that the proposed approach can map flooded urban areas with high accuracy using SAR data from the Sentinel-1 satellite mission.  ...  Acknowledgments: The authors wish to acknowledge the Digital Globe Open Data Program for publicly releasing pre-and post-event imagery and crowdsourcing data over affected areas during Harvey.  ... 
doi:10.3390/rs11020107 fatcat:pa2jhxugbbcmvjfyv3xi57luza
« Previous Showing results 1 — 15 out of 3,203 results