Automatic Measurement of Polynya Area by Anisotropic Filtering and Markov Random Fields

Author

Moctezuma Flores, Miguel ; Parmiggiani, Flavio ; Lopez Lopez, Ludwin

Author_Institution

Dept. of Telecommun., Univ. Nac. Autonoma de Mexico, Mexico City, Mexico

Volume

7

Issue

5

fYear

2014

fDate

May-14

Firstpage

1665

Lastpage

1674

Abstract

This paper presents a processing scheme for the automatic measurement of polynya area as observed by Cosmo-SkyMed (CSK) SAR-X images. The processing scheme, based on anisotropic filtering and on Markov Random Fields, was tested with two CSK SAR-X images captured during the polynya events occurred on September 10 and 26, 2009, at Terra Nova Bay, Antarctica. The good correspondence between the polynya extent, as obtained by the automatic method and clearly identified by visual inspection, confirms the soundness of the proposed processing scheme.

Keywords

remote sensing by radar; sea ice; synthetic aperture radar; AD 2009 09 10; AD 2009 09 26; Antarctica; CSK SAR-X images; Cosmo-SkyMed SAR-X images; Markov random fields; Terra Nova Bay; anisotropic filtering; polynya area automatic measurement; processing scheme; visual inspection; Equations; Image edge detection; Image segmentation; Sea ice; Sea measurements; Speckle; Anisotropic diffusion; Markov Random Fields (MRFs); edge detection; polynya; sea ice;

fLanguage

English

Journal_Title

Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of

Publisher

ieee

ISSN

1939-1404

Type

jour

DOI

10.1109/JSTARS.2014.2314684

Filename

6823080