Journal
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
Volume 60, Issue -, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TGRS.2022.3224480
Keywords
Hyperspectral (HS) image fusion; multispectral (MS) image; pansharpening; primal-dual splitting method; total variation
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Funding
- Japan Science and Technology Agency Precursory Research for Embryonic Science and Technology (JST PRESTO) [JPMJPR21C4]
- Japan Society for the Promotion of Science [22H03610, 22H00512, 21K21312, 20H02145, 18H05413]
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This article proposes a new method for estimating high spatial resolution hyperspectral images based on convex optimization. The method can simultaneously estimate a high spatial resolution image and a noiseless guide image, and effectively utilize prior knowledge and spatial detail information to improve the estimation accuracy.
This article proposes a new high spatial resolution hyperspectral (HR-HS) image estimation method based on convex optimization. The method assumes a low spatial resolution HS (LR-HS) image and a guide image as observations, where both observations are contaminated by noise. Our method simultaneously estimates an HR-HS image and a noiseless guide image, so the method can utilize spatial information in a guide image even if it is contaminated by heavy noise. The proposed estimation problem adopts hybrid spatiospectral total variation as regularization and evaluates the edge similarity between HR-HS and guide images to effectively use a priori knowledge on an HR-HS image and spatial detail information in a guide image. To efficiently solve the problem, we apply a primal-dual splitting method. Experiments demonstrate the performance of our method and the advantage over several existing methods.
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