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[IEEE TMI Best Paper Award] Official Implementation for UNet++

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[IEEE TMI Best Paper Award] Official Implementation for UNet++

UNet++

UNet++ is a nested U-Net architecture for medical image segmentation. It consists of U-Nets of varying depths whose decoders are densely connected at the same resolution through redesigned skip pathways. This addresses two limitations of the original U-Net: the unknown optimal depth of the architecture, and the unnecessarily restrictive design of its skip connections.

Paper

This repository provides the official Keras and PyTorch implementations of UNet++, from the following papers:

UNet++: Redesigning Skip Connections to Exploit Multiscale Features in Image Segmentation
Zongwei Zhou, Md Mahfuzur Rahman Siddiquee, Nima Tajbakhsh, and Jianming Liang
Arizona State University
IEEE Transactions on Medical Imaging (TMI)
paper | code

UNet++: A Nested U-Net Architecture for Medical Image Segmentation
Zongwei Zhou, Md Mahfuzur Rahman Siddiquee, Nima Tajbakhsh, and Jianming Liang
Arizona State University
Deep Learning in Medical Image Analysis (DLMIA) 2018. (Oral)
paper | code | slides | poster | blog

Official implementation

  • keras/
  • pytorch/

Other implementation

  • [PyTorch] (by Pavel Yakubovskiy)
  • [PyTorch] (by 4ui_iurz1)
  • [PyTorch] (by ZJUGiveLab)
  • [PyTorch] (by MontaEllis, deprecated)
  • [Keras] (by Siddhartha)

Citation

If you use UNet++ for your research, please cite our papers:

…

Acknowledgments

This research has been supported partially by NIH under Award Number R01HL128785, by ASU and Mayo Clinic through a Seed Grant and an Innovation Grant. The content is solely the responsibility of the authors and does not necessarily represent the official views of NIH. This is a patent-pending technology.

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Pythonmedical-imagingsegmentationunet

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> Details

PublishedAug 1, 2026
UpdatedSep 17, 2026
Category编程语言
PricingOpen source

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