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Mosaicking Opportunistically Acquired Very High-Resolution Helicopter-Borne Images over Drifting Sea Ice Using COTS Sensors

Cited 1 time in wos
Cited 1 time in scopus
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Title
Mosaicking Opportunistically Acquired Very High-Resolution Helicopter-Borne Images over Drifting Sea Ice Using COTS Sensors
Other Titles
이동하는 해빙의 헬리콥터 탑재 센서 기반 고해상도 영상 획득과 모자이크 제작
Authors
Hyun, Chang-Uk
Kim, Joo-Hong
Han, Hyangsun
Kim, Hyun-cheol
Subject
Chemistry; Engineering; Instruments & Instrumentation
Keywords
commercial off-the-shelf sensor; helicopter-borne imaging; sea ice drift; time interpolation; very high-resolution
Issue Date
2019-03
Citation
Hyun, Chang-Uk, et al. 2019-03. "Mosaicking Opportunistically Acquired Very High-Resolution Helicopter-Borne Images over Drifting Sea Ice Using COTS Sensors". SENSORS, 19(5): 1251-1251.
Abstract
Observing sea ice by very high-resolution (VHR) images not only improves the quality of lower-resolution remote sensing products (e.g., sea ice concentration, distribution of melt ponds and pressure ridges, sea ice surface roughness, etc.) by providing details on the ground truth of sea ice, but also assists sea ice fieldwork. In this study, two fieldwork-based methods are proposed, one for the practical acquisition of VHR images over drifting Arctic sea ice using low-cost commercial off-the-shelf (COTS) sensors equipped on helicopter, and the other for quantifying the compensating effect from continuously drifting sea ice that reduces geolocation uncertainty in the image mosaicking procedure. The drifting trajectory of the target ice was yielded from that recorded by an icebreaker that was tightly anchored to the floe and was then used to reversely compensate the locations of acquired VHR images. After applying the compensation, three-dimensional geolocation errors of the VHR images were decreased by 79.3% and 24.2% for pre-defined two image groups, respectively. The enhanced accuracy of the imaging locations was affected by imaging duration causing variable drifting distances of individual images. Further applicability of the mosaicked VHR image was discussed by comparing it with a TerraSAR-X synthetic aperture radar image containing the target ice, suggesting that the proposed methods can be used for precise comparison with satellite remote sensing products.
URI
https://repository.kopri.re.kr/handle/201206/10887
DOI
http://dx.doi.org/10.3390/s19051251
Appears in Collections  
2018-2019, Korea-Arctic Ocean Observing System(K-AOOS) (18-19) / Kang, Sung-Ho (PM18040)
2019-2019, Research on analytical technique for satellite observation of Arctic sea ice (19-19) / Kim, Hyun-cheol (PE19120)
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