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Dynamic Path-Controllable Deep Unfolding Network for Compressive Sensing
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DOI：10.1109/TIP.2023.3263100.png)
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Abstract
En 中文
Deep unfolding network (DUN) that unfolds the optimization algorithm into a deep neural network has achieved great success in compressive sensing (CS) due to its good interpretability and high performance. Each stage in DUN corresponds to one iteration in optimization. At the test time, all the sampling images generally need to be processed by all stages, which comes at a price of computation burden and is also unnecessary for the images whose contents are easier to restore. In this paper, we focus on CS reconstruction and propose a novel Dynamic Path-Controllable Deep Unfolding Network (DPC-DUN). DPC-DUN with our designed path-controllable selector can dynamically select a rapid and appropriate route for each image and is slimmable by regulating different performance-complexity tradeoffs. Extensive experiments show that our DPC-DUN is highly flexible and can provide excellent performance and dynamic adjustment to get a suitable tradeoff, thus addressing the main requirements to become appealing in practice. Codes are available at https://github.com/songjiechong/DPC-DUN.
Keywords:
Heuristic algorithms
Optimization
Image reconstruction
Image coding
Compressed sensing
Image restoration
Computational efficiency
Deep unfolding network
compressive sensing
path selection
dynamic modulation
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