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The UNet model consists of fully convolutional network (FCN) layers arranged as contracting encoder and upsampling decoder maps. Nested arrangements of these encoder and decoder maps give rise to extensions of the UNet model, such as UNete…

Image and Video Processing · Electrical Eng. & Systems 2023-04-11 Yilong Yang , Srinandan Dasmahapatra , Sasan Mahmoodi

Accurate volume segmentation from the Computed Tomography (CT) scan is a common prerequisite for pre-operative planning, intra-operative guidance and quantitative assessment of therapeutic outcomes in robot-assisted Minimally Invasive…

Image and Video Processing · Electrical Eng. & Systems 2020-03-10 Peichao Li , Xiao-Yun Zhou , Zhao-Yang Wang , Guang-Zhong Yang

Purpose: Accurate identification of hepatocystic anatomy is critical to preventing surgical complications during laparoscopic cholecystectomy. Deep learning models often struggle with occlusions, long-range dependencies, and capturing the…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Yihan Li , Nikhil Churamani , Maria Robu , Imanol Luengo , Danail Stoyanov

Medical image segmentation plays a pivotal role in disease diagnosis and treatment planning, particularly in resource-constrained clinical settings where lightweight and generalizable models are urgently needed. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Chengqi Dong , Fenghe Tang , Rongge Mao , Xinpei Gao , S. Kevin Zhou

Segmentation is essential for medical image analysis to identify and localize diseases, monitor morphological changes, and extract discriminative features for further diagnosis. Skin cancer is one of the most common types of cancer…

Image and Video Processing · Electrical Eng. & Systems 2022-09-02 Hritam Basak , Rohit Kundu , Ram Sarkar

Since the emergence of Covid-19 in late 2019, medical image analysis using artificial intelligence (AI) has emerged as a crucial research area, particularly with the utility of CT-scan imaging for disease diagnosis. This paper contributes…

Image and Video Processing · Electrical Eng. & Systems 2024-03-19 Fares Bougourzi , Feryal Windal Moula , Halim Benhabiles , Fadi Dornaika , Abdelmalik Taleb-Ahmed

Weakly-supervised instance segmentation aims to detect and segment object instances precisely, given imagelevel labels only. Unlike previous methods which are composed of multiple offline stages, we propose Sequential Label Propagation and…

Computer Vision and Pattern Recognition · Computer Science 2020-04-27 Weifeng Ge , Sheng Guo , Weilin Huang , Matthew R. Scott

Coronavirus disease 2019 (COVID-19) is a Public Health Emergency of International Concern infecting more than 40 million people across 188 countries and territories. Chest computed tomography (CT) imaging technique benefits from its high…

Image and Video Processing · Electrical Eng. & Systems 2021-02-02 Yifan Jiang , Han Chen , David K. Han , Hanseok Ko

Accurate segmentation of blood vessels is essential for various clinical assessments and postoperative analyses. However, the inherent challenges of vascular imaging, such as sparsity, fine granularity, low contrast, data distribution…

Image and Video Processing · Electrical Eng. & Systems 2024-11-26 Dongning Song , Weijian Huang , Jiarun Liu , Md Jahidul Islam , Hao Yang , Shanshan Wang

Vessel segmentation is widely used to help with vascular disease diagnosis. Vessels reconstructed using existing methods are often not sufficiently accurate to meet clinical use standards. This is because 3D vessel structures are highly…

Image and Video Processing · Electrical Eng. & Systems 2023-01-09 Gangming Zhao , Kongming Liang , Chengwei Pan , Fandong Zhang , Xianpeng Wu , Xinyang Hu , Yizhou Yu

Recently, the state-of-art models for medical image segmentation is U-Net and their variants. These networks, though succeeding in deriving notable results, ignore the practical problem hanging over the medical segmentation field:…

Image and Video Processing · Electrical Eng. & Systems 2025-01-07 Hao Ziang , Jingsi Zhang , Lixian Li

Chest X-ray imaging is commonly used to diagnose pneumonia, but accurately localizing the pneumonia-affected regions typically requires detailed pixel-level annotations, which are costly and time consuming to obtain. To address this…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Kiran Shahi , Anup Bagale

Renal compartment segmentation on CT images targets on extracting the 3D structure of renal compartments from abdominal CTA images and is of great significance to the diagnosis and treatment for kidney diseases. However, due to the unclear…

Image and Video Processing · Electrical Eng. & Systems 2021-08-29 Song Wang , Yuting He , Youyong Kong , Xiaomei Zhu , Shaobo Zhang , Pengfei Shao , Jean-Louis Dillenseger , Jean-Louis Coatrieux , Shuo Li , Guanyu Yang

Weakly-supervised learning under image-level labels supervision has been widely applied to semantic segmentation of medical lesions regions. However, 1) most existing models rely on effective constraints to explore the internal…

Computer Vision and Pattern Recognition · Computer Science 2019-08-23 Jiahua Dong , Yang Cong , Gan Sun , Dongdong Hou

Tissue segmentation is the mainstay of pathological examination, whereas the manual delineation is unduly burdensome. To assist this time-consuming and subjective manual step, researchers have devised methods to automatically segment…

Image and Video Processing · Electrical Eng. & Systems 2022-08-08 Yang Nan , Peng Tang , Guyue Zhang , Caihong Zeng , Zhihong Liu , Zhifan Gao , Heye Zhang , Guang Yang

With the spread of COVID-19 around the globe over the past year, the usage of artificial intelligence (AI) algorithms and image processing methods to analyze the X-ray images of patients' chest with COVID-19 has become essential. The…

Image and Video Processing · Electrical Eng. & Systems 2025-01-16 Xinyuan Song

This study explores the potential of graph neural networks (GNNs) to enhance semantic segmentation across diverse image modalities. We evaluate the effectiveness of a novel GNN-based U-Net architecture on three distinct datasets: PascalVOC,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Aryan Singh , Pepijn Van de Ven , Ciarán Eising , Patrick Denny

Federated learning, which shares the weights of the neural network across clients, is gaining attention in the healthcare sector as it enables training on a large corpus of decentralized data while maintaining data privacy. For example,…

Image and Video Processing · Electrical Eng. & Systems 2021-11-04 Sangjoon Park , Gwanghyun Kim , Jeongsol Kim , Boah Kim , Jong Chul Ye

Segmentation of small and irregularly shaped abdominal organs, such as the adrenal glands in CT imaging, remains a persistent challenge due to severe class imbalance, poor spatial context, and limited annotated data. In this work, we…

Image and Video Processing · Electrical Eng. & Systems 2025-09-04 Hania Ghouse , Muzammil Behzad

Accurate segmentation of COVID-19 CT images is crucial for reducing the severity and mortality rates associated with COVID-19 infections. In response to blurred boundaries and high variability characteristic of lesion areas in COVID-19 CT…

Image and Video Processing · Electrical Eng. & Systems 2024-03-05 Jiao Ding , Jie Chang , Renrui Han , Li Yang