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U-Net, as an encoder-decoder architecture with forward skip connections, has achieved promising results in various medical image analysis tasks. Many recent approaches have also extended U-Net with more complex building blocks, which…

计算机视觉与模式识别 · 计算机科学 2022-04-12 Tiange Xiang , Chaoyi Zhang , Xinyi Wang , Yang Song , Dongnan Liu , Heng Huang , Weidong Cai

As an essential prerequisite for developing a medical intelligent assistant system, medical image segmentation has received extensive research and concentration from the neural network community. A series of UNet-like networks with…

图像与视频处理 · 电气工程与系统科学 2022-05-25 Ledan Qian , Xiao Zhou , Yi Li , Zhongyi Hu

Skip connections in deep networks have improved both segmentation and classification performance by facilitating the training of deeper network architectures, and reducing the risks for vanishing gradients. They equip encoder-decoder-like…

In recent years, U-Net and its variants have been widely used in pathology image segmentation tasks. One of the key designs of U-Net is the use of skip connections between the encoder and decoder, which helps to recover detailed information…

图像与视频处理 · 电气工程与系统科学 2023-10-18 Zongyi Li , Hongbing Lyu , Jun Wang

U-Net has become one of the state-of-the-art deep learning-based approaches for modern computer vision tasks such as semantic segmentation, super resolution, image denoising, and inpainting. Previous extensions of U-Net have focused mainly…

计算机视觉与模式识别 · 计算机科学 2020-07-07 Tiange Xiang , Chaoyi Zhang , Dongnan Liu , Yang Song , Heng Huang , Weidong Cai

The U-net architecture has significantly impacted deep learning-based segmentation of medical images. Through the integration of long-range skip connections, it facilitated the preservation of high-resolution features. Out-of-distribution…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Frauke Wilm , Jonas Ammeling , Mathias Öttl , Rutger H. J. Fick , Marc Aubreville , Katharina Breininger

Recently, a growing interest has been seen in deep learning-based semantic segmentation. UNet, which is one of deep learning networks with an encoder-decoder architecture, is widely used in medical image segmentation. Combining multi-scale…

图像与视频处理 · 电气工程与系统科学 2020-04-21 Huimin Huang , Lanfen Lin , Ruofeng Tong , Hongjie Hu , Qiaowei Zhang , Yutaro Iwamoto , Xianhua Han , Yen-Wei Chen , Jian Wu

Deep neural network has been ensured as a key technology in the field of many challenging and vigorously researched computer vision tasks. Furthermore, classical ResNet is thought to be a state-of-the-art convolutional neural network (CNN)…

计算机视觉与模式识别 · 计算机科学 2024-09-02 Prathibha Varghese , G. Arockia Selva Saroja

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…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Bipul Neupane , Jagannath Aryal , Abbas Rajabifard

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…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Vikram R Lakkavalli

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:…

计算机视觉与模式识别 · 计算机科学 2025-10-24 Quansong He , Xiangde Min , Kaishen Wang , Tao He

Recent advances in diffusion models for image generation have led to detailed examinations of several components within the U-Net architecture for image editing. While previous studies have focused on the bottleneck layer (h-space),…

计算机视觉与模式识别 · 计算机科学 2025-04-07 Ludovica Schaerf , Andrea Alfarano , Fabrizio Silvestri , Leonardo Impett

In recent years, deep convolutional neural networks have shown fascinating performance in the field of image denoising. However, deeper network architectures are often accompanied with large numbers of model parameters, leading to high…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Wencong Wu , Shicheng Liao , Guannan Lv , Peng Liang , Yungang Zhang

The U-Net architecture, built upon the fully convolutional network, has proven to be effective in biomedical image segmentation. However, U-Net applies skip connections to merge semantically different low- and high-level convolutional…

图像与视频处理 · 电气工程与系统科学 2021-07-28 Hasib Zunair , A. Ben Hamza

We present an approach for estimating surface normals from in-the-wild color images of faces. While data-driven strategies have been proposed for single face images, limited available ground truth data makes this problem difficult. To…

计算机视觉与模式识别 · 计算机科学 2020-03-31 Victoria Fernandez Abrevaya , Adnane Boukhayma , Philip H. S. Torr , Edmond Boyer

Nowadays, pre-trained encoders are widely used in medical image segmentation due to their strong capability in extracting rich and generalized feature representations. However, existing methods often fail to fully leverage these features,…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Xiaolin Gou , Chuanlin Liao , Jizhe Zhou , Fengshuo Ye , Yi Lin

The state-of-the-art models for medical image segmentation are variants of U-Net and fully convolutional networks (FCN). Despite their success, these models have two limitations: (1) their optimal depth is apriori unknown, requiring…

图像与视频处理 · 电气工程与系统科学 2020-01-30 Zongwei Zhou , Md Mahfuzur Rahman Siddiquee , Nima Tajbakhsh , Jianming Liang

Most state-of-the-art methods for medical image segmentation adopt the encoder-decoder architecture. However, this U-shaped framework still has limitations in capturing the non-local multi-scale information with a simple skip connection. To…

图像与视频处理 · 电气工程与系统科学 2023-12-27 Haonan Wang , Peng Cao , Xiaoli Liu , Jinzhu Yang , Osmar Zaiane

In this paper, we introduce U-Net v2, a new robust and efficient U-Net variant for medical image segmentation. It aims to augment the infusion of semantic information into low-level features while simultaneously refining high-level features…

图像与视频处理 · 电气工程与系统科学 2024-04-02 Yaopeng Peng , Milan Sonka , Danny Z. Chen

In this paper, we present the result of adopting skip connections and dense layers, previously used in image classification tasks, in the Fisher GAN implementation. We have experimented with different numbers of layers and inserting these…

计算机视觉与模式识别 · 计算机科学 2018-11-13 Samarth Tripathi , Renbo Tu
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