Introduction

Since 2015, UNet has made major breakthroughs in the medical image segmentation , opening the era of deep learning. Later researchers have made a lot of improvements on the basis of UNet in order to improve the performance of semantic segmentation.

In this project, we have compiled the semantic segmentation models related to UNet(UNet family) in recent years. My implementation is mainly based on pytorch, and other implementations are collected from author of original paper or excellent repositories. For the record, this project is still under construction. If you have any advice or question, please raise an issue or contact me from email.

Furthermore, why does the UNet neural network perform well in medical image segmentation? You can figure it out from my answer in Zhihu.

UNet-family

2015

• U-Net: Convolutional Networks for Biomedical Image Segmentation (MICCAI) [paper] [my-pytorch][keras]

2016

• V-Net: Fully Convolutional Neural Networks for Volumetric Medical Image Segmentation [paper] [caffe][pytorch]
• 3D U-Net: Learning Dense Volumetric Segmentation from Sparse Annotation [paper][pytorch]

2017

• H-DenseUNet: Hybrid Densely Connected UNet for Liver and Tumor Segmentation from CT Volumes (IEEE Transactions on Medical Imaging)[paper][keras]
• GP-Unet: Lesion Detection from Weak Labels with a 3D Regression Network (MICCAI) [paper]

2018

• UNet++: A Nested U-Net Architecture for Medical Image Segmentation (MICCAI) [paper][my-pytorch][keras]
• MDU-Net: Multi-scale Densely Connected U-Net for biomedical image segmentation [paper]
• DUNet: A deformable network for retinal vessel segmentation [paper]
• RA-UNet: A hybrid deep attention-aware network to extract liver and tumor in CT scans [paper]
• Dense Multi-path U-Net for Ischemic Stroke Lesion Segmentation in Multiple Image Modalities [paper]
• Stacked Dense U-Nets with Dual Transformers for Robust Face Alignment [paper]
• Prostate Segmentation using 2D Bridged U-net [paper]
• nnU-Net: Self-adapting Framework for U-Net-Based Medical Image Segmentation [paper][pytorch]
• SUNet: a deep learning architecture for acute stroke lesion segmentation and outcome prediction in multimodal MRI [paper]
• IVD-Net: Intervertebral disc localization and segmentation in MRI with a multi-modal UNet [paper]
• LADDERNET: Multi-Path Networks Based on U-Net for Medical Image Segmentation [paper][pytorch]
• Glioma Segmentation with Cascaded Unet [paper]
• Attention U-Net: Learning Where to Look for the Pancreas [paper]
• Recurrent Residual Convolutional Neural Network based on U-Net (R2U-Net) for Medical Image Segmentation [paper]
• Concurrent Spatial and Channel ‘Squeeze & Excitation’ in Fully Convolutional Networks [paper]
• A Probabilistic U-Net for Segmentation of Ambiguous Images (NIPS) [paper] [tensorflow]
• AnatomyNet: Deep Learning for Fast and Fully Automated Whole-volume Segmentation of Head and Neck Anatomy [paper]
• 3D RoI-aware U-Net for Accurate and Efficient Colorectal Cancer Segmentation [paper][pytorch]
• Detection and Delineation of Acute Cerebral Infarct on DWI Using Weakly Supervised Machine Learning (Y-Net) (MICCAI) [paper](Page 82)
• Fully Dense UNet for 2D Sparse Photoacoustic Tomography Artifact Removal [paper]

2019

• MultiResUNet : Rethinking the U-Net Architecture for Multimodal Biomedical Image Segmentation [paper][keras]
• U-NetPlus: A Modified Encoder-Decoder U-Net Architecture for Semantic and Instance Segmentation of Surgical Instrument [paper]
• Probability Map Guided Bi-directional Recurrent UNet for Pancreas Segmentation [paper]
• CE-Net: Context Encoder Network for 2D Medical Image Segmentation [paper][pytorch]
• Graph U-Net [paper]
• A Novel Focal Tversky Loss Function with Improved Attention U-Net for Lesion Segmentation (ISBI) [paper]
• ST-UNet: A Spatio-Temporal U-Network for Graph-structured Time Series Modeling [paper]
• Connection Sensitive Attention U-NET for Accurate Retinal Vessel Segmentation [paper]
• CIA-Net: Robust Nuclei Instance Segmentation with Contour-aware Information Aggregation [paper]
• W-Net: Reinforced U-Net for Density Map Estimation [paper]
• Automated Segmentation of Pulmonary Lobes using Coordination-guided Deep Neural Networks (ISBI oral) [paper]
• U2-Net: A Bayesian U-Net Model with Epistemic Uncertainty Feedback for Photoreceptor Layer Segmentation in Pathological OCT Scans [paper]
• ScleraSegNet: an Improved U-Net Model with Attention for Accurate Sclera Segmentation (ICB Honorable Mention Paper Award) [paper]
• AHCNet: An Application of Attention Mechanism and Hybrid Connection for Liver Tumor Segmentation in CT Volumes [paper]
• A Hierarchical Probabilistic U-Net for Modeling Multi-Scale Ambiguities [paper]
• Recurrent U-Net for Resource-Constrained Segmentation [paper]
• MFP-Unet: A Novel Deep Learning Based Approach for Left Ventricle Segmentation in Echocardiography [paper]
• A Partially Reversible U-Net for Memory-Efficient Volumetric Image Segmentation (MICCAI 2019) [paper][pytorch]
• ResUNet-a: a deep learning framework for semantic segmentation of remotely sensed data [paper]
• A multi-task U-net for segmentation with lazy labels [paper]
• RAUNet: Residual Attention U-Net for Semantic Segmentation of Cataract Surgical Instruments [paper]
• 3D U2-Net: A 3D Universal U-Net for Multi-Domain Medical Image Segmentation (MICCAI 2019) [paper] [pytorch]
• SegNAS3D: Network Architecture Search with Derivative-Free Global Optimization for 3D Image Segmentation (MICCAI 2019) [paper]
• 3D Dilated Multi-Fiber Network for Real-time Brain Tumor Segmentation in MRI [paper][pytorch] (MICCAI 2019)
• The Domain Shift Problem of Medical Image Segmentation and Vendor-Adaptation by Unet-GAN [paper]
• Recurrent U-Net for Resource-Constrained Segmentation [paper] (ICCV 2019)
• Siamese U-Net with Healthy Template for Accurate Segmentation of Intracranial Hemorrhage (MICCAI 2019)

2020

• U^2-Net: Going Deeper with Nested U-Structure for Salient Object Detection (Pattern Recognition 2020) [paper][pytorch]
• UNET 3+: A Full-Scale Connected UNet for Medical Image Segmentation (ICASSP 2020) [paper][pytorch]

Reference

• https://github.com/ozan-oktay/Attention-Gated-Networks (Our model style mainly refers to this repository.）