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The convolution neural nets (conv nets) have achieved a state-of-the-art performance in many applications of image and video processing. The most recent studies illustrate that the conv nets are fragile in terms of recognition accuracy to…

Computer Vision and Pattern Recognition · Computer Science 2019-10-25 Sergey Tarasenko , Fumihiko Takahashi

In clinical procedures of angioplasty (i.e., open clogged coronary arteries), devices such as balloons and stents need to be placed and expanded in arteries under the guidance of X-ray fluoroscopy. Due to the limitation of X-ray dose, the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-25 Luojie Huang , Yikang Liu , Li Chen , Eric Z. Chen , Xiao Chen , Shanhui Sun

Visual place recognition is a challenging task for autonomous driving and robotics, which is usually considered as an image retrieval problem. A commonly used two-stage strategy involves global retrieval followed by re-ranking using…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Yanqing Shen , Sanping Zhou , Jingwen Fu , Ruotong Wang , Shitao Chen , Nanning Zheng

Various types of atherosclerotic plaque and varying grades of stenosis could lead to different management of patients with coronary artery disease. Therefore, it is crucial to detect and classify the type of coronary artery plaque, as well…

Computer Vision and Pattern Recognition · Computer Science 2018-12-11 Majd Zreik , Robbert W. van Hamersvelt , Jelmer M. Wolterink , Tim Leiner , Max A. Viergever , Ivana Isgum

Photon-counting spectral computed tomography is now clinically available. These new detectors come with the promise of higher contrast-to-noise ratio and spatial resolution and improved low-dose imaging. However, one important design…

Medical Physics · Physics 2023-02-03 Dennis Hein , Konstantinos Liappis , Fredrik Grönberg , Alma Eguizabal , Mats Persson

Coronary Artery Diseases although preventable are one of the leading cause of mortality worldwide. Due to the onerous nature of diagnosis, tackling CADs has proved challenging. This study addresses the automation of resource-intensive and…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Sandesh Pokhrel , Sanjay Bhandari , Eduard Vazquez , Yash Raj Shrestha , Binod Bhattarai

We introduce Patch Refinement a two-stage model for accurate 3D object detection and localization from point cloud data. Patch Refinement is composed of two independently trained Voxelnet-based networks, a Region Proposal Network (RPN) and…

Computer Vision and Pattern Recognition · Computer Science 2019-10-10 Johannes Lehner , Andreas Mitterecker , Thomas Adler , Markus Hofmarcher , Bernhard Nessler , Sepp Hochreiter

Retinal fundus images are widely used for the clinical screening and diagnosis of eye diseases. However, fundus images captured by operators with various levels of experience have a large variation in quality. Low-quality fundus images…

Image and Video Processing · Electrical Eng. & Systems 2020-12-10 Ziyi Shen , Huazhu Fu , Jianbing Shen , Ling Shao

The precise delineation of blood vessels in medical images is critical for many clinical applications, including pathology detection and surgical planning. However, fully-automated vascular segmentation is challenging because of the…

Image and Video Processing · Electrical Eng. & Systems 2024-09-20 Amine Sadikine , Bogdan Badic , Enzo Ferrante , Vincent Noblet , Pascal Ballet , Dimitris Visvikis , Pierre-Henri Conze

Infrared small target detection (IRSTD) poses a significant challenge in the field of computer vision. While substantial efforts have been made over the past two decades to improve the detection capabilities of IRSTD algorithms, there has…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Saed Moradi , Alireza Memarmoghadam , Payman Moallem , Mohamad Farzan Sabahi

Segmenting specific targets or biomarkers is necessary to analyze optical coherence tomography angiography (OCTA) images. Previous methods typically segment all the targets in an OCTA sample, such as retinal vessels (RVs). Although these…

Machine Learning · Computer Science 2024-03-21 Xinrun Chen , Chengliang Wang , Haojian Ning , Shiying Li , Mei Shen

Generating high-quality stitched images is a challenging task in computer vision. The existing feature-based image stitching methods commonly only focus on point and line features, neglecting the crucial role of higher-level planar features…

Image and Video Processing · Electrical Eng. & Systems 2023-08-31 Qi Liu , Xiyu Tang , Ju Huo

Early identification of patients at risk of cardiovascular diseases (CVD) is crucial for effective preventive care, reducing healthcare burden, and improving patients' quality of life. This study demonstrates the potential of retinal…

Image and Video Processing · Electrical Eng. & Systems 2024-10-21 Cynthia Maldonado-Garcia , Arezoo Zakeri , Alejandro F Frangi , Nishant Ravikumar

In computer vision, reference datasets have been highly successful in promoting algorithmic development in stereo reconstruction. Surgical scenes gives rise to specific problems, including the lack of clear corner features, highly specular…

Computer Vision and Pattern Recognition · Computer Science 2022-02-10 P. J. "Eddie'' Edwards , Dimitris Psychogyios , Stefanie Speidel , Lena Maier-Hein , Danail Stoyanov

This paper presents a regularized regression model with a two-level structural sparsity penalty applied to locate individual atoms in a noisy scanning transmission electron microscopy image (STEM). In crystals, the locations of atoms is…

Applications · Statistics 2018-03-13 Xin Li , Alex Belianinov , Ondrej Dyck , Stephen Jesse , Chiwoo Park

The study of the retinal vasculature is a fundamental stage in the screening and diagnosis of many diseases. A complete retinal vascular analysis requires to segment and classify the blood vessels of the retina into arteries and veins…

Image and Video Processing · Electrical Eng. & Systems 2022-09-21 José Morano , Álvaro S. Hervella , Jorge Novo , José Rouco

Image Quality Assessment (IQA) constitutes a fundamental task within the field of computer vision, yet it remains an unresolved challenge, owing to the intricate distortion conditions, diverse image contents, and limited availability of…

Computer Vision and Pattern Recognition · Computer Science 2023-08-24 Kangmin Xu , Liang Liao , Jing Xiao , Chaofeng Chen , Haoning Wu , Qiong Yan , Weisi Lin

Purpose: This study presents a variable resolution (VR) sampling and deep learning reconstruction approach for multi-spectral MRI near metal implants, aiming to reduce scan times while maintaining image quality. Background: The rising use…

Image and Video Processing · Electrical Eng. & Systems 2024-11-01 Azadeh Sharafi , Nikolai J. Mickevicius , Mehran Baboli , Andrew S. Nencka , Kevin M. Koch

Optical Coherence Tomography (OCT) is a non-invasive imaging modality essential for diagnosing various eye diseases. Despite its clinical significance, developing OCT-based diagnostic tools faces challenges, such as limited public datasets,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-30 Mohammadreza Saraei , Igor Kozak , Eung-Joo Lee

The detection of retinal blood vessels, especially the changes of small vessel condition is the most important indicator to identify the vascular network of the human body. Existing techniques focused mainly on shape of the large vessels,…

Image and Video Processing · Electrical Eng. & Systems 2020-09-17 Lukman Hakim , Novanto Yudistira , Muthusubash Kavitha , Takio Kurita