U-Net

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Overview

U-Net studies U-shaped encoder–decoder networks that combine coarse context with fine spatial detail through skip connections, especially for image segmentation. Researchers adapt the basic design with attention, residual and nested blocks, 2D or 3D convolutions, and transformer or state-space modules; it is also used for image restoration and scientific prediction. Applications range from medical scans and microscopy to satellite imagery, weather, and physical fields, where reliable spatial outputs matter. A central tension is whether added architectural complexity improves accuracy and generalization enough to justify its costs, since simple U-Nets remain strong baselines and results depend heavily on data and evaluation settings.

Latest papers

CardsList

109 papers5 papers in the last four weeks, down 72% on the four weeks before. 0.0% of all new papers.

  1. Accuracy and efficiency of compact foundation models for surface-water mapping during floods

    Oct 26, 2026Parastoo Farajpoor, Mohammadreza NarimaniFlood Inundation MappingGeospatial Foundation Models

    Department of Biological and Agricultural Engineering, University of California, Davis, Davis, CA, 95616, USA

  2. MoWE: Spatially Adaptive Mixture-of-Wavelet-Experts Pooling for Ultrasound Lesion Segmentation

    Oct 18, 2026Reaz Hassan Joarder, Sidratul Tanzila Tasmi, Alif Arshad Bakshi +2Ultrasound Image SegmentationMixture of Experts

    Islamic University of Technology, Bangladesh · United International University, Bangladesh

  3. Denoise X: Self-Supervised U-Net for Quantum Mottle Suppression in Chest Radiography

    Oct 13, 2026Parth Giramkar, Aryan Patle, Vanita KshirsagarImage DenoisingSelf-Supervised Image Denoising

    Department of Artificial Intelligence and Data Science, Dr. D. Y. Patil Institute of Technology, Pune, Maharashtra 411018, India

  4. Deep Learning-based Semantic Segmentation of Dental Radiographs: Comparative Evaluation of PSPNet, DeepLabv3, UNet, and UNet++

    Oct 10, 2026Malithi Nawarathne, Nadeesha Herath Mudiyanselage Lihini SangeethaMedical Image SegmentationSemantic Segmentation

    Faculty of Computing, Sri Lanka Institute of Information Technology, Sri Lanka · Department of Computer Science, Faculty of Science, University of Helsinki, Finland · Computing Centre, Faculty of Engineering, University of Peradeniya, Sri Lanka

  5. DEX: Digit-Level Early Exit for Energy-Efficient MSDF Neural Network Inference

    Oct 8, 2026Yousef Sadegheih, Dorit Merhof, Muhammad UsmanEfficient Neural Network InferenceEarly-Exit Neural Networks

    Faculty of Informatics and Data Science, University of Regensburg, 93053 Regensburg, Germany

  6. Determining Vertical Displacement of Agricultural Areas Using UAV-Photogrammetry and a Heteroscedastic Deep Learning Model

    Sep 30, 2026Wojciech Gruszczyński, Edyta Puniach, Paweł Ćwiąkała +1U-NetUAV Remote Sensing

    AGH University of Krakow, Faculty of Geo-Data Science, Geodesy, and Environmental Engineering, Mickiewicza 30, 30-059 Krakow, Poland

  7. Parameter-Efficient 3D Segmentation of Liver and Liver tumors: Depthwise factorization Scales Better Than Dense Convolution with Spatial Dimensionality

    Sep 27, 2026Adham M. Alkhadrawi, Mohammed A. B. MahmoudDepthwise Separable ConvolutionMedical Image Segmentation

    Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, HI, USA · Faculty of Computer Studies, Arab Open University, Riyadh 11681, Kingdom of Saudi Arabia

  8. Beyond Sparsity: Weight Location and Network Context in Pruned MRI Reconstruction

    Sep 25, 2026Mohammed Wattad, Tamir Shor, Alexander M. BronsteinNeural Network PruningAccelerated MRI Reconstruction

    Faculty of Computer Science, Technion - Israel Institute of Technology, Haifa, Israel

  9. Multi-Resolution Feature Fusion U-Net for Magnetic Resonance Imaging Segmentation

    Sep 24, 2026Eirini Cholopoulou, Dimitrios E. Diamantis, Dimitris K. IakovidisMedical Image SegmentationU-Net

    Department of Computer Science and Biomedical University of Thessaly Lamia, Greece

  10. Lightweight Vision Transformer-Based U-Net for Brain Tumor Segmentation from MRI

    Sep 24, 2026Sheekar Banerjee, Md. Srabon Chowdhury, Md. Mahbub Hasan Akash +1Hybrid CNN-Transformer ArchitecturesVision Transformer

    Department of CSE, IUBAT, Dhaka, Bangladesh

  11. Lightweight Probabilistic Downscaling from a Deterministic Base Model

    Sep 24, 2026Joseph McLean, Tiffany Vlaar, Sigrid Passano Hellan +1Climate ScienceU-Net

    University of Glasgow · Climate System and Climate Services, NORCE Research AS and Bjerknes Centre for Climate Research, Bergen, Norway

  12. TinyCardioUNet: IMU-to-ECG Translation with Graph-Encoded Inter-Axis Dependencies and Tensor Decomposition-Based Parameter Reduction

    Sep 24, 2026Seungwoo Han, Ingon Chanpornpakdi, Motoi Noda +3ElectrocardiographyU-Net

    Department of Electrical Engineering and Computer Science, Tokyo University of Agriculture and Technology, Japan

  13. Brain Metastases Segmentation for BraTS 2026 Task 1: A Multi-Architecture Comparison

    Sep 21, 2026Mahdi Islam, Musarrat TabassumU-NetMedical Image Segmentation

    Center for Computational & Data Sciences, Independent University, Bangladesh · Department of Electrical and Electronic Engineering, Independent University, Bangladesh · Independent Researcher

  14. U-PEN Mamba: Progressive Expansion with Selective State-Space Modeling for Efficient Retinal Vessel Segmentation

    Sep 21, 2026Abel A. Reyes-Angulo, Sidike Paheding, Vijayan K. Asari +2MambaRetinal Vessel Segmentation

    Michigan Technological University, Houghton, MI, USA · Fairfield University, Fairfield, CT, USA · University of Dayton, Dayton, OH, USA +1

  15. VGG16-MCA UNet: Whole-Tumor Segmentation in 2D FLAIR MRI with Decoder-Side Channel Attention

    Sep 20, 2026Shubham Gajjar, Deep Joshi, Avi Poptani +1U-NetChannel Attention

    Northeastern University, Portland, ME, USA · LDRP Institute of Technology and Research, Kadi Sarva Vishwavidyalaya, Sarva Vidyalaya Kelavani Mandal, Gandhinagar, Gujarat, INDIA

  16. Decoder Design Matters for ECG Delineation

    Sep 15, 2026Joseph Scharpf, William Han, Chaojing Duan +3ElectrocardiographyU-Net

    Carnegie Mellon University · Allegheny Health Network · University of Colorado

  17. Task-Directed Residual AddUNet:Perfect-Reconstruction Routing for Full-Rate Representations

    Sep 14, 2026Vikram R. LakkavalliAudio Representation LearningRepresentation Learning

    International Institute of Information Technology Bangalore, India

  18. Assessing nnU-Net Generalization across Brain Tumor Populations in BraTS-GoAT 2026

    Sep 14, 2026Tristan Kirscher, Vivian Metzger, Philippe Meyer +1Neural Network GeneralizationU-Net

    ICube, Institut Strauss · Institut Strauss · Institut Strauss, ICube

  19. DU-NO: A Parameter-Efficient Double U-Shaped Neural Operator for Phase-Resolving Wave Modeling

    Sep 10, 2026Enrique Hernandez Noguera, Md Meftahul Ferdaus, Nathan Cooper +2U-NetPDE Operator Learning

    Canizaro-Livingston Gulf States Center for Environmental Informatics, LSU New Orleans, New Orleans, LA, USA · U.S. Naval Research Laboratory, Stennis Space Center, MS, USA

  20. MSCA-UNet: Multi-Scale Context and Attention U-Net for Image Segmentation

    Sep 6, 2026Sheng-Wei ChanImage SegmentationU-Net

    Dept. of Electrical Engineering Tamkang University

  21. Segmentation of the aorta in 4D flow MRI using 4D convolutional kernels and learning from sparse annotations

    Sep 3, 2026Hinrich Rahlfs, Julio Garcia, Chiara Manini +13Medical Image SegmentationMagnetic Resonance Imaging

  22. UI-VISA: U-Net Initialized Vascular Image Segmentation Architecture

    Sep 1, 2026Asees Kaur, Suzanne S. Sindi, Erica M. RutterU-NetTopology-Preserving Image Segmentation

    University of California, Merced

  23. BS: Take the Hint - Interactive Multitracer PET/CT Lesion Segmentation with a Scribble-Conditioned ResEnc U-Net

    Sep 1, 2026Marven Sherif, Amgad Elmasry, Youssef Ghazal +1Interactive Medical Image SegmentationU-Net

    Brightskies

  24. Scale-based Approach for Active Wildfire Segmentation on Satellite Imagery

    Sep 1, 2026Matheus F. Kovaleski, Cristiano Premebida, João Ruivo PauloImage SegmentationRemote Sensing Image Segmentation

    Institute of Systems and Robotics, Department of Electrical and Computer Engineering, University of Coimbra, Portugal

  25. Deep Learning Segmentation of Diffusion-Weighted MRI Acute Ischaemic Stroke: A Pragmatic Evaluation Across Three Datasets

    Aug 26, 2026Atle Bjørnerud, Till Schellhorn, Thor H. Skattør +4Medical Image SegmentationU-Net

    Computational Radiology & Artificial Intelligence Unit, Department of Physics and Computational Radiology, Oslo University Hospital, Oslo, Norway · Center for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Oslo, Norway · Division of Radiology and Nuclear Medicine, Oslo University Hospital, Oslo, Norway +5

  26. CiUNet: A Hybrid Swin-CNN UNet for Medical Image Segmentation

    Aug 23, 2026Bin Dong, Jinghong ChenMedical Image SegmentationU-Net

    Ciphowork GmbH

  27. Towards Investigating Residual Hearing Loss: Quantification of Fibrosis in a Novel Cochlear OCT Dataset

    Aug 21, 2026Julia Dietlmeier, Benjamin Greenberg, Wenxuan He +10Medical Image SegmentationU-Net

    Insight Research Ireland Centre for Data Analytics, Dublin City University, Ireland · Rutgers University, New Jersey, USA · Oregon Health & Science University (OHSU), Oregon Hearing Research Center (OHRC), Portland, Oregon, USA

  28. OptiModNet: A UNet-Transformer Hybrid with Grouped-Query and Channel Attention for Optic Disc and Cup Segmentation

    Aug 19, 2026Soumili Ghosh, Debapriya Roy, Aryan Das +1Optic Disc SegmentationOphthalmic Image Analysis

    IEM Saltlake,India · Techno Main Salt Lake, India · VIT Bhopal University, India +1

  29. EA-LiteUNet: An Edge-Adaptive and Resource-Efficient U-Net for Boundary-Sensitive Dermoscopic Image Segmentation

    Aug 16, 2026Wang Jiangtao, Nur Intan Raihana Ruhaiyem, Fu Panpan +2Image SegmentationSkin Lesion Segmentation

    School of Network Communication, Zhejiang Yuexiu University, Shaoxing,312000, China · School of Computer Sciences, Universiti Sains Malaysia, Penang,11800, Malaysia

  30. M-Net: Integrating Spectral Features and Physical Field Operators into Deep Learning for Medical Image Segmentation

    Aug 12, 2026Jing Zhu, Ye Wang, Fumin WangU-NetInductive Bias

    School of Physics, Xi’an Jiaotong University, Xi’an 710049, China · University of Sydney, Sydney, NSW 2006, Australia