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Yuning Cui 0001

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4 papers
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4

ICLR Conference 2025 Conference Paper

AdaIR: Adaptive All-in-One Image Restoration via Frequency Mining and Modulation

  • Yuning Cui 0001
  • Syed Waqas Zamir
  • Salman H. Khan 0001
  • Alois C. Knoll
  • Mubarak Shah
  • Fahad Shahbaz Khan

In the image acquisition process, various forms of degradation, including noise, blur, haze, and rain, are frequently introduced. These degradations typically arise from the inherent limitations of cameras or unfavorable ambient conditions. To recover clean images from their degraded versions, numerous specialized restoration methods have been developed, each targeting a specific type of degradation. Recently, all-in-one algorithms have garnered significant attention by addressing different types of degradations within a single model without requiring the prior information of the input degradation type. However, most methods purely operate in the spatial domain and do not delve into the distinct frequency variations inherent to different degradation types. To address this gap, we propose an adaptive all-in-one image restoration network based on frequency mining and modulation. Our approach is motivated by the observation that different degradation types impact the image content on different frequency subbands, thereby requiring different treatments for each restoration task. Specifically, we first mine low- and high-frequency information from the input features, guided by the adaptively decoupled spectra of the degraded image. The extracted features are then modulated by a bidirectional operator to facilitate interactions between different frequency components. Finally, the modulated features are merged into the original input for a progressively guided restoration. With this approach, the model achieves adaptive reconstruction by accentuating the informative frequency subbands according to different input degradations. Extensive experiments demonstrate that the proposed method, AdaIR, achieves state-of-the-art performance on different image restoration tasks, including image denoising, dehazing, deraining, motion deblurring, and low-light image enhancement. The code is available at https://github.com/c-yn/AdaIR.

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IROS Conference 2025 Conference Paper

MambaSFLNet: A Mamba-based Model for Low-Light Image Enhancement with Spatial and Frequency Features

  • Mingyu Liu
  • Yuning Cui 0001
  • Leah Strand
  • Xingcheng Zhou
  • Jiajie Zhang
  • Alois C. Knoll

Low-light image enhancement (LLIE) aims to enhance the illumination of images that are captured under dark conditions, which is critical for various applications in dim environments, such as robotics and autonomous driving. Existing convolutional neural network (CNN)-based methods usually struggle to capture long-range dependencies, while transformer-based methods, despite their effectiveness, are resource-consuming. Besides, the frequency domain includes important lightness degradation information. To this end, we propose a Mamba-based framework called MambaSFLNet to effectively address LLIE by integrating spatial and frequency features. Our approach utilizes the Visual State Space Module to establish relationships across different regions of the input image while maintaining low model complexity. Furthermore, The spatial module not only balances illumination distribution but also suppresses noise and artifacts during enhancement. In addition, the frequency module enhances image contrast and sharpness by leveraging frequency-domain information. Extensive experiments on nine widely used benchmarks demonstrate that our approach achieves superior performance and exhibits strong generalization capabilities compared to existing methods. The codes are available at https://github.com/MingyuLiu1/MambaSFLNet.git

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ICML Conference 2023 Conference Paper

IRNeXt: Rethinking Convolutional Network Design for Image Restoration

  • Yuning Cui 0001
  • Wenqi Ren
  • Sining Yang
  • Xiaochun Cao
  • Alois C. Knoll

We present IRNeXt, a simple yet effective convolutional network architecture for image restoration. Recently, Transformer models have dominated the field of image restoration due to the powerful ability of modeling long-range pixels interactions. In this paper, we excavate the potential of the convolutional neural network (CNN) and show that our CNN-based model can receive comparable or better performance than Transformer models with low computation overhead on several image restoration tasks. By re-examining the characteristics possessed by advanced image restoration algorithms, we discover several key factors leading to the performance improvement of restoration models. This motivates us to develop a novel network for image restoration based on cheap convolution operators. Comprehensive experiments demonstrate that IRNeXt delivers state-of-the-art performance among numerous datasets on a range of image restoration tasks with low computational complexity, including image dehazing, single-image defocus/motion deblurring, image deraining, and image desnowing. https: //github. com/c-yn/IRNeXt.

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ICLR Conference 2023 Conference Paper

Selective Frequency Network for Image Restoration

  • Yuning Cui 0001
  • Yi Tao
  • Zhenshan Bing
  • Wenqi Ren
  • Xinwei Gao
  • Xiaochun Cao
  • Kai Huang 0001
  • Alois C. Knoll

Image restoration aims to reconstruct the latent sharp image from its corrupted counterpart. Besides dealing with this long-standing task in the spatial domain, a few approaches seek solutions in the frequency domain in consideration of the large discrepancy between spectra of sharp/degraded image pairs. However, these works commonly utilize transformation tools, e.g., wavelet transform, to split features into several frequency parts, which is not flexible enough to select the most informative frequency component to recover. In this paper, we exploit a multi-branch and content-aware module to decompose features into separate frequency subbands dynamically and locally, and then accentuate the useful ones via channel-wise attention weights. In addition, to handle large-scale degradation blurs, we propose an extremely simple decoupling and modulation module to enlarge the receptive field via global and window-based average pooling. Integrating two developed modules into a U-Net backbone, the proposed Selective Frequency Network (SFNet) performs favorably against state-of-the-art algorithms on five image restoration tasks, including single-image defocus deblurring, image dehazing, image motion deblurring, image desnowing, and image deraining.

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v2026.09.13