Title: Surveying Shipping and Fishing in the SW Indian Ocean with Satellite SAR
Authors: VAN WIMERSMA GREIDANUS HermanARDILL DavidANSELL NeilTHOORENS Francois-XavierPERIES Pierre
Citation: 33rd International Symposium on Remote Sensing of Environment, Sustaining the Millennium Development Goals - ISBN 978-0-932913-13-5 vol. I, II p. 801-804
Publisher: International Center for Remote Sensing of Environment (ICRSE)
Publication Year: 2009
JRC N°: JRC56296
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC56296
Type: Contributions to Conferences
Abstract: More than 120 ENVISAT ASAR Alternating Polarization HH/HV images were acquired and analyzed over the southwest Indian Ocean in order to survey for shipping and fishing. The images were processed for ship detection, combining the detections in HH and HV and using a CFAR threshold that is adjusted a posteriori. The false alarm rate in HH is not only higher but also much more variable than in HV, so that the latter is preferred for more reliable ship detection results. In the end, only a small number of ships were found, underlining to need to collect large image data sets for maritime surveillance of wide areas.
JRC Institute:Institute for the Protection and Security of the Citizen

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