Moen Mari-Ann - Academia.edu (original) (raw)
Uploads
Papers by Moen Mari-Ann
The Cryosphere Discussions, 2013
In this paper we investigate the performance of an algorithm for automatic segmentation of full p... more In this paper we investigate the performance of an algorithm for automatic segmentation of full polarimetric, synthetic aperture radar (SAR) sea ice scenes. The algorithm uses statistical and polarimetric properties of the backscattered radar signals to segment the SAR image into a specified number of classes. This number was determined 5 in advance from visual inspection of the SAR image and by available in-situ measurements. The segmentation result was then compared to ice charts drawn by ice service analysts. The comparison revealed big discrepancies between the charts of the analysts, and between the manual and the automatic segmentations. In the succeeding analysis, the automatic segmentation chart was labeled into ice types by sea ice ex-10 perts, and the SAR features used in the segmentation were interpreted in terms of physical sea ice properties.
The Cryosphere Discussions, 2013
In this paper we investigate the performance of an algorithm for automatic segmentation of full p... more In this paper we investigate the performance of an algorithm for automatic segmentation of full polarimetric, synthetic aperture radar (SAR) sea ice scenes. The algorithm uses statistical and polarimetric properties of the backscattered radar signals to segment the SAR image into a specified number of classes. This number was determined 5 in advance from visual inspection of the SAR image and by available in-situ measurements. The segmentation result was then compared to ice charts drawn by ice service analysts. The comparison revealed big discrepancies between the charts of the analysts, and between the manual and the automatic segmentations. In the succeeding analysis, the automatic segmentation chart was labeled into ice types by sea ice ex-10 perts, and the SAR features used in the segmentation were interpreted in terms of physical sea ice properties.