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Deep learning architecture with convolutional neural network (CNN) achieves outstanding success in the field of computer vision. Where U-Net, an encoder-decoder architecture structured by CNN, makes a great breakthrough in biomedical image…

Image and Video Processing · Electrical Eng. & Systems 2023-02-13 Qing Xu , Zhicheng Ma , Na HE , Wenting Duan

Medical image segmentation is vital to the area of medical imaging because it enables professionals to more accurately examine and understand the information offered by different imaging modalities. The technique of splitting a medical…

Image and Video Processing · Electrical Eng. & Systems 2024-09-01 Aitik Gupta , Joydip Dhar

Most methods for medical image segmentation use U-Net or its variants as they have been successful in most of the applications. After a detailed analysis of these "traditional" encoder-decoder based approaches, we observed that they perform…

Image and Video Processing · Electrical Eng. & Systems 2021-10-18 Jeya Maria Jose Valanarasu , Vishwanath A. Sindagi , Ilker Hacihaliloglu , Vishal M. Patel

Since the advent of U-Net, fully convolutional deep neural networks and its many variants have completely changed the modern landscape of deep learning based medical image segmentation. However, the over dependence of these methods on pixel…

Image and Video Processing · Electrical Eng. & Systems 2021-01-20 Simon Bohlender , Ilkay Oksuz , Anirban Mukhopadhyay

Medical image segmentation is a critical task in computer vision, with UNet serving as a milestone architecture. The typical component of UNet family is the skip connection, however, their skip connections face two significant limitations:…

Computer Vision and Pattern Recognition · Computer Science 2025-10-24 Quansong He , Xiangde Min , Kaishen Wang , Tao He

Although convolutional neural networks (CNNs) are promoting the development of medical image semantic segmentation, the standard model still has some shortcomings. First, the feature mapping from the encoder and decoder sub-networks in the…

Image and Video Processing · Electrical Eng. & Systems 2020-12-22 Yutong Cai , Yong Wang

Deep learning has made significant progress in computer vision, specifically in image classification, object detection, and semantic segmentation. The skip connection has played an essential role in the architecture of deep neural…

Image and Video Processing · Electrical Eng. & Systems 2025-08-11 Guoping Xu , Xiaxia Wang , Xinglong Wu , Xuesong Leng , Yongchao Xu

Medical image segmentation remains particularly challenging for complex and low-contrast anatomical structures. In this paper, we introduce the U-Transformer network, which combines a U-shaped architecture for image segmentation with self-…

Image and Video Processing · Electrical Eng. & Systems 2021-03-15 Olivier Petit , Nicolas Thome , Clément Rambour , Luc Soler

Urban buildings are extracted from high-resolution Earth observation (EO) images using semantic segmentation networks like U-Net and its successors. Each re-iteration aims to improve performance by employing a denser skip connection…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Bipul Neupane , Jagannath Aryal , Abbas Rajabifard

Due to its excellent performance, U-Net is the most widely used backbone architecture for biomedical image segmentation in the recent years. However, in our studies, we observe that there is a considerable performance drop in the case of…

Image and Video Processing · Electrical Eng. & Systems 2020-07-10 Jeya Maria Jose , Vishwanath Sindagi , Ilker Hacihaliloglu , Vishal M. Patel

Neural segmentation has a great impact on the smooth implementation of local anesthesia surgery. At present, the network for the segmentation includes U-NET [1] and SegNet [2]. U-NET network has short training time and less training…

Computer Vision and Pattern Recognition · Computer Science 2017-08-17 Chenyang Xu , Mengxin Li

Medical image segmentation has been very challenging due to the large variation of anatomy across different cases. Recent advances in deep learning frameworks have exhibited faster and more accurate performance in image segmentation. Among…

Image and Video Processing · Electrical Eng. & Systems 2020-03-12 Maryam Asadi-Aghbolaghi , Reza Azad , Mahmood Fathy , Sergio Escalera

In this paper, we study the influence of both long and short skip connections on Fully Convolutional Networks (FCN) for biomedical image segmentation. In standard FCNs, only long skip connections are used to skip features from the…

Computer Vision and Pattern Recognition · Computer Science 2016-09-26 Michal Drozdzal , Eugene Vorontsov , Gabriel Chartrand , Samuel Kadoury , Chris Pal

In the past few years, convolutional neural networks (CNNs), particularly U-Net, have been the prevailing technique in the medical image processing era. Specifically, the seminal U-Net, as well as its alternatives, have successfully managed…

Computer Vision and Pattern Recognition · Computer Science 2022-07-28 Reza Azad , Mohammad T. AL-Antary , Moein Heidari , Dorit Merhof

Purpose: Automated distinct bone segmentation from CT scans is widely used in planning and navigation workflows. U-Net variants are known to provide excellent results in supervised semantic segmentation. However, in distinct bone…

Image and Video Processing · Electrical Eng. & Systems 2023-02-01 Eva Schnider , Julia Wolleb , Antal Huck , Mireille Toranelli , Georg Rauter , Magdalena Müller-Gerbl , Philippe C. Cattin

U-net is an image segmentation technique developed primarily for medical image analysis that can precisely segment images using a scarce amount of training data. These traits provide U-net with a very high utility within the medical imaging…

Image and Video Processing · Electrical Eng. & Systems 2021-06-10 Nahian Siddique , Paheding Sidike , Colin Elkin , Vijay Devabhaktuni

The segmentation of ultra-high resolution images poses challenges such as loss of spatial information or computational inefficiency. In this work, a novel approach that combines encoder-decoder architectures with domain decomposition…

Computer Vision and Pattern Recognition · Computer Science 2025-04-25 Corné Verburg , Alexander Heinlein , Eric C. Cyr

In medical image segmentation tasks, the scarcity of labeled training data poses a significant challenge when training deep neural networks. When using U-Net-style architectures, it is common practice to address this problem by pretraining…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Gábor Hidy , Bence Bakos , András Lukács

Fully convolutional neural networks like U-Net have been the state-of-the-art methods in medical image segmentation. Practically, a network is highly specialized and trained separately for each segmentation task. Instead of a collection of…

Image and Video Processing · Electrical Eng. & Systems 2019-09-16 Chao Huang , Hu Han , Qingsong Yao , Shankuan Zhu , S. Kevin Zhou

Skip connections are central to U-Net architectures for image denoising, but standard concatenation doubles channel dimensionality and obscures information flow, allowing uncontrolled noise transfer. We propose the Additive U-Net, which…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Vikram R Lakkavalli