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Abstract:
Spectral reconstruction is an important task in the field of computer vision with growing attraction and scope of applications. This task aims to generate hyperspectral images (HSIs) with the same spatial resolution by improving the spectral resolution from RGB images. With the successful application of convolutional neural network, some researchers introduce this idea into the task of spectral reconstruction. In this paper, we propose a novel method with a cluster-based deep residual convolutional neural network (DRCNN) for spectral reconstruction from RGB images. To make full use of the local feature on the residual branches, we propose a hierarchical feature fusion (HFF) module to propagate the useful information of preceding blocks to the end of the module. In the training phase, we use RGB images that contain pixels belonging to the same cluster to train the specific DRCNN. In the testing phase, we apply the trained model to reconstruct the corresponding HSIs. As a postprocess, element-wise addition is utilized to generate the complete HSI. Extensive experiments show that the proposed method, compared with the state-of-the-art spectral reconstruction approaches, achieves superior reconstruction performance in three hyperspectral datasets: CAVE, Harvard, and ICVL. © 2021 Elsevier B.V.
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Neurocomputing
ISSN: 0925-2312
Year: 2021
Volume: 464
Page: 342-351
5 . 7 7 9
JCR@2021
5 . 5 0 0
JCR@2023
ESI HC Threshold:106
JCR Journal Grade:2
CAS Journal Grade:3
Cited Count:
SCOPUS Cited Count: 12
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
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30 Days PV: 0
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