Title :
Extraction of water surfaces in simulated Ka-band SAR images of KaRIn on swot
Author :
Cao, Fang ; Tupin, Florence ; Nicolas, Jean-Marie ; Fjørtoft, Roger ; Pourthié, Nadine
Author_Institution :
Inst. Telecom, Telecom ParisTech, Paris, France
Abstract :
The future spatial SWOT mission will use a new altimetric sensor "KaRIn", which is a Ka-band interfero metric SAR system operating on near-nadir swaths on both sides of the satellite track [1]. The objective is to study the height of the earth\´s water surfaces, mainly oceans, but also continental water surfaces such as lakes and rivers. This article dedicated to water surface detection methods, presents a multi-scale line extraction approach that has been adapted to the specificities of the KaRIn instrument, and gives some preliminary results obtained on simulated SAR images.
Keywords :
hydrological techniques; lakes; oceanographic techniques; oceanography; radar altimetry; radar imaging; radar interferometry; rivers; sea level; synthetic aperture radar; Earth water surface height; Ka-band interferometric SAR system; KaRIn altimetric sensor; continental water surfaces; lakes; multiscale line extraction approach; near-nadir swaths; oceans; rivers; satellite track; simulated Ka-band SAR images; spatial SWOT mission; water surface detection methods; water surface extraction; Detectors; Feature extraction; Image segmentation; Rivers; Roads; Sea surface; Shape; Hydrological network extraction; SWOT KaRIn images;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4577-1003-2
DOI :
10.1109/IGARSS.2011.6049991
