Deep Network Series for Large-Scale High-Dynamic Range Imaging
Deep Network Series for Large-Scale High-Dynamic Range Imaging
复制标题
用于大规模高动态范围成像的深度网络系列
DOI:
10.1109/icassp49357.2023.10094843
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发表时间:
2023
期刊:
影响因子:
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通讯作者:
Aghabiglou A
中科院分区:
文献类型:
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作者:
Aghabiglou A
We propose a new approach for large-scale high-dynamic range computational imaging. Deep Neural Networks (DNNs) trained end-to-end can solve linear inverse imaging problems almost instantaneously. While unfolded architectures provide robustness to measurement setting variations, embedding large-scale measurement operators in DNN architectures is impractical. Alternative Plug-and-Play (PnP) approaches, where the denoising DNNs are blind to the measurement setting, have proven effective to address scalability and high-dynamic range challenges, but rely on highly iterative algorithms. We propose a residual DNN series approach, also interpretable as a learned version of matching pursuit, where the reconstructed image is a sum of residual images progressively increasing the dynamic range, and estimated iteratively by DNNs taking the back-projected data residual of the previous iteration as input. We demonstrate on radio-astronomical imaging simulations that a series of only few terms provides a reconstruction quality competitive with PnP, at a fraction of the cost.
DOI:
10.3847/2041-8213/ac98af
发表时间:
2022-07
期刊:
The Astrophysical Journal Letters
影响因子:
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作者:
A. Dabbech;M. Terris;A. Jackson;M. Ramatsoku;O. Smirnov;Y. Wiaux
通讯作者:
A. Dabbech;M. Terris;A. Jackson;M. Ramatsoku;O. Smirnov;Y. Wiaux
DOI:
10.1093/mnras/stab3044
发表时间:
2021
期刊:
ArXiv
影响因子:
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作者:
C. Gheller;F. Vazza
通讯作者:
F. Vazza