Learning-based superresolution land cover mapping

Super-resolution mapping (SRM) is a technique for generating a fine spatial resolution land cover map from coarse spatial resolution fraction images estimated by soft classification. The prior model used to describe the fine spatial resolution land cover pattern is a key issue in SRM. Here, a novel...

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Main Authors: Ling, Feng, Zhang, Yihang, Foody, Giles M., Li, Xiaodong, Zhang, Xiuhua, Fang, Shiming, Li, Wenbo, Du, Yun
Format: Article
Published: Institute of Electrical and Electronics Engineers 2016
Subjects:
Online Access:https://eprints.nottingham.ac.uk/32958/
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author Ling, Feng
Zhang, Yihang
Foody, Giles M.
Li, Xiaodong
Zhang, Xiuhua
Fang, Shiming
Li, Wenbo
Du, Yun
author_facet Ling, Feng
Zhang, Yihang
Foody, Giles M.
Li, Xiaodong
Zhang, Xiuhua
Fang, Shiming
Li, Wenbo
Du, Yun
author_sort Ling, Feng
building Nottingham Research Data Repository
collection Online Access
description Super-resolution mapping (SRM) is a technique for generating a fine spatial resolution land cover map from coarse spatial resolution fraction images estimated by soft classification. The prior model used to describe the fine spatial resolution land cover pattern is a key issue in SRM. Here, a novel learning based SRM algorithm, whose prior model is learned from other available fine spatial resolution land cover maps, is proposed. The approach is based on the assumption that the spatial arrangement of the land cover components for mixed pixel patches with similar fractions is often similar. The proposed SRM algorithm produces a learning database that includes a large number of patch pairs for which there is a fine and coarse spatial resolution representation for the same area. From the learning database, patch pairs that have similar coarse spatial resolution patches as those in input fraction images are selected. Fine spatial resolution patches in these selected patch pairs are then used to estimate the latent fine spatial resolution land cover map, by solving an optimization problem. The approach is illustrated by comparison against state-of-the-art SRM methods using land cover map subsets generated from the USA’s National Land Cover Database. Results show that the proposed SRM algorithm better maintains the spatial pattern of land covers for a range of different landscapes. The proposed SRM algorithm has the highest overall accuracy and Kappa values in all these SRM algorithms, by using the entire maps in the accuracy assessment.
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spelling nottingham-329582020-05-04T17:52:56Z https://eprints.nottingham.ac.uk/32958/ Learning-based superresolution land cover mapping Ling, Feng Zhang, Yihang Foody, Giles M. Li, Xiaodong Zhang, Xiuhua Fang, Shiming Li, Wenbo Du, Yun Super-resolution mapping (SRM) is a technique for generating a fine spatial resolution land cover map from coarse spatial resolution fraction images estimated by soft classification. The prior model used to describe the fine spatial resolution land cover pattern is a key issue in SRM. Here, a novel learning based SRM algorithm, whose prior model is learned from other available fine spatial resolution land cover maps, is proposed. The approach is based on the assumption that the spatial arrangement of the land cover components for mixed pixel patches with similar fractions is often similar. The proposed SRM algorithm produces a learning database that includes a large number of patch pairs for which there is a fine and coarse spatial resolution representation for the same area. From the learning database, patch pairs that have similar coarse spatial resolution patches as those in input fraction images are selected. Fine spatial resolution patches in these selected patch pairs are then used to estimate the latent fine spatial resolution land cover map, by solving an optimization problem. The approach is illustrated by comparison against state-of-the-art SRM methods using land cover map subsets generated from the USA’s National Land Cover Database. Results show that the proposed SRM algorithm better maintains the spatial pattern of land covers for a range of different landscapes. The proposed SRM algorithm has the highest overall accuracy and Kappa values in all these SRM algorithms, by using the entire maps in the accuracy assessment. Institute of Electrical and Electronics Engineers 2016-05-06 Article PeerReviewed Ling, Feng, Zhang, Yihang, Foody, Giles M., Li, Xiaodong, Zhang, Xiuhua, Fang, Shiming, Li, Wenbo and Du, Yun (2016) Learning-based superresolution land cover mapping. IEEE Transactions on Geoscience and Remote Sensing, 54 (7). pp. 3794-3810. ISSN 0196-2892 Super-resolution mapping; learning database; patch pairs; neighboring patches http://dx.doi.org/10.1109/TGRS.2016.2527841 doi:10.1109/TGRS.2016.2527841 doi:10.1109/TGRS.2016.2527841
spellingShingle Super-resolution mapping; learning database; patch pairs; neighboring patches
Ling, Feng
Zhang, Yihang
Foody, Giles M.
Li, Xiaodong
Zhang, Xiuhua
Fang, Shiming
Li, Wenbo
Du, Yun
Learning-based superresolution land cover mapping
title Learning-based superresolution land cover mapping
title_full Learning-based superresolution land cover mapping
title_fullStr Learning-based superresolution land cover mapping
title_full_unstemmed Learning-based superresolution land cover mapping
title_short Learning-based superresolution land cover mapping
title_sort learning-based superresolution land cover mapping
topic Super-resolution mapping; learning database; patch pairs; neighboring patches
url https://eprints.nottingham.ac.uk/32958/
https://eprints.nottingham.ac.uk/32958/
https://eprints.nottingham.ac.uk/32958/