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Positron Emission Tomography (PET) is an imaging method that can assess physiological function rather than structural disturbances by measuring cerebral perfusion or glucose consumption. However, this imaging technique relies on injection…

Image and Video Processing · Electrical Eng. & Systems 2021-03-10 Sahar Yousefi , Hessam Sokooti , Wouter M. Teeuwisse , Dennis F. R. Heijtel , Aart J. Nederveen , Marius Staring , Matthias J. P. van Osch

This contribution presents a deep learning method for the segmentation of prostate zones in MRI images based on U-Net using additive and feature pyramid attention modules, which can improve the workflow of prostate cancer detection and…

Image and Video Processing · Electrical Eng. & Systems 2023-09-06 Pablo Cesar Quihui-Rubio , Daniel Flores-Araiza , Miguel Gonzalez-Mendoza , Christian Mata , Gilberto Ochoa-Ruiz

Semantic segmentation of remote sensing images plays an important role in a wide range of applications including land resource management, biosphere monitoring and urban planning. Although the accuracy of semantic segmentation in remote…

Image and Video Processing · Electrical Eng. & Systems 2021-09-21 Rui Li , Shunyi Zheng , Chenxi Duan , Ce Zhang , Jianlin Su , P. M. Atkinson

Accurate segmentation is crucial for clinical applications, but existing models often assume fixed, high-resolution inputs and degrade significantly when faced with lower-resolution data in real-world scenarios. To address this limitation,…

Image and Video Processing · Electrical Eng. & Systems 2025-07-22 Simon Winther Albertsen , Hjalte Svaneborg Bjørnstrup , Mostafa Mehdipour Ghazi

An improved model of medical image segmentation for brain tumor is discussed, which is a deep learning algorithm based on U-Net architecture. Based on the traditional U-Net, we introduce GSConv module and ECA attention mechanism to improve…

Image and Video Processing · Electrical Eng. & Systems 2024-09-23 Qiyuan Tian , Zhuoyue Wang , Xiaoling Cui

Micro-expression has emerged as a promising modality in affective computing due to its high objectivity in emotion detection. Despite the higher recognition accuracy provided by the deep learning models, there are still significant scope…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Viswanatha Reddy Gajjala , Sai Prasanna Teja Reddy , Snehasis Mukherjee , Shiv Ram Dubey

Accurate quantification of cerebral blood flow (CBF) is essential for the diagnosis and assessment of a wide range of neurological diseases. Positron emission tomography (PET) with radiolabeled water (15O-water) is considered the…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Ramy Hussein , David Shin , Moss Zhao , Jia Guo , Guido Davidzon , Michael Moseley , Greg Zaharchuk

Super-resolving the Magnetic Resonance (MR) image of a target contrast under the guidance of the corresponding auxiliary contrast, which provides additional anatomical information, is a new and effective solution for fast MR imaging.…

Image and Video Processing · Electrical Eng. & Systems 2022-08-23 Chun-Mei Feng , Yunlu Yan , Kai Yu , Yong Xu , Ling Shao , Huazhu Fu

Current state-of-the-art medical image segmentation methods prioritize accuracy but often at the expense of increased computational demands and larger model sizes. Applying these large-scale models to the relatively limited scale of medical…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Jiahui Zhong , Wenhong Tian , Yuanlun Xie , Zhijia Liu , Jie Ou , Taoran Tian , Lei Zhang

Purpose: Manual medical image segmentation is an exhausting and time-consuming task along with high inter-observer variability. In this study, our objective is to improve the multi-resolution image segmentation performance of U-Net…

Image and Video Processing · Electrical Eng. & Systems 2020-07-20 Simindokht Jahangard , Mohammad Hossein Zangooei , Maysam Shahedi

Positron emission tomography (PET) is widely used in various clinical applications, including cancer diagnosis, heart disease and neuro disorders. The use of radioactive tracer in PET imaging raises concerns due to the risk of radiation…

Computer Vision and Pattern Recognition · Computer Science 2017-12-13 Junshen Xu , Enhao Gong , John Pauly , Greg Zaharchuk

Dynamic positron emission tomography (PET) images can reveal the distribution of tracers in the organism and the dynamic processes involved in biochemical reactions, and it is widely used in clinical practice. Despite the high effectiveness…

Image and Video Processing · Electrical Eng. & Systems 2025-12-22 Jie Sun , Junyan Zhang , Qian Xia , Chuanfu Sun , Yumei Chen , Yunjie Yang , Huafeng Liu , Wentao Zhu , Qiegen Liu

We propose a novel technique to incorporate attention within convolutional neural networks using feature maps generated by a separate convolutional autoencoder. Our attention architecture is well suited for incorporation with deep…

Computer Vision and Pattern Recognition · Computer Science 2019-02-11 Chaitanya Kaul , Suresh Manandhar , Nick Pears

Text-guided image generation and editing using diffusion models have achieved remarkable advancements. Among these, tuning-free methods have gained attention for their ability to perform edits without extensive model adjustments, offering…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Wenyi Mo , Tianyu Zhang , Yalong Bai , Bing Su , Ji-Rong Wen

Segmentation is a fundamental task in medical image analysis. However, most existing methods focus on primary region extraction and ignore edge information, which is useful for obtaining accurate segmentation. In this paper, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2019-07-26 Zhijie Zhang , Huazhu Fu , Hang Dai , Jianbing Shen , Yanwei Pang , Ling Shao

Rodent stroke models are important for evaluating treatments and understanding the pathophysiology and behavioral changes of brain ischemia, and magnetic resonance imaging (MRI) is a valuable tool for measuring outcome in preclinical…

Characterizing a preclinical stage of Alzheimer's Disease (AD) via single imaging is difficult as its early symptoms are quite subtle. Therefore, many neuroimaging studies are curated with various imaging modalities, e.g., MRI and PET,…

Image and Video Processing · Electrical Eng. & Systems 2025-03-06 Seunghun Baek , Jaeyoon Sim , Mustafa Dere , Minjeong Kim , Guorong Wu , Won Hwa Kim

Positron Emission Tomography (PET) is an important clinical imaging tool but inevitably introduces radiation hazards to patients and healthcare providers. Reducing the tracer injection dose and eliminating the CT acquisition for attenuation…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Tianqi Chen , Jun Hou , Yinchi Zhou , Huidong Xie , Xiongchao Chen , Qiong Liu , Xueqi Guo , Menghua Xia , James S. Duncan , Chi Liu , Bo Zhou

Positron Emission Tomography (PET) is a powerful molecular imaging tool that plays a crucial role in modern medical diagnostics by visualizing radio-tracer distribution to reveal physiological processes. Accurate organ segmentation from PET…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Yichi Zhang , Le Xue , Wenbo Zhang , Lanlan Li , Yuchen Liu , Chen Jiang , Yuan Cheng , Yuan Qi

Accurate identification and quantification of unruptured intracranial aneurysms (UIAs) is crucial for the risk assessment and treatment of this cerebrovascular disorder. Current 2D manual assessment on 3D magnetic resonance angiography…

Image and Video Processing · Electrical Eng. & Systems 2024-03-21 Amirhossein Rasoulian , Arash Harirpoush , Soorena Salari , Yiming Xiao