Masked Correlation for Improvement of 2D Glacier Motion Estimation Based on Terrasar-x Imagery
作者： L. Fang , U. Stilla
DOI: 10.5194/ISPRSANNALS-II-7-9-2014
关键词:
摘要: Abstract. In this paper, the impacts of non-glacier information in template window used cross-correlation calculation for 2D motion estimation glaciers are discussed and illustrated by example Taku glacier, which is biggest glacier Juneau Icefield, Alaska. For this, maps extracted traditional normalized technique masked method, uses a manually generated binary mask to threshold pixels, based on geocoded high resolution TerraSAR-X images. Based comparison different results, it was found that without disturbing (e.g., mountain, water) accuracy sequential patches method improved results much more reasonable, respect law flows like river with higher velocity middle than sides.
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