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The pandemic of coronavirus disease 2019 (COVID-19) has lead to a global public health crisis spreading hundreds of countries. With the continuous growth of new infections, developing automated tools for COVID-19 identification with CT…

Image and Video Processing · Electrical Eng. & Systems 2020-09-17 Zhao Wang , Quande Liu , Qi Dou

Coronavirus Disease 2019 (COVID-19) demonstrated the need for accurate and fast diagnosis methods for emergent viral diseases. Soon after the emergence of COVID-19, medical practitioners used X-ray and computed tomography (CT) images of…

Image and Video Processing · Electrical Eng. & Systems 2021-01-22 Weihan Zhang , Bryan Pogorelsky , Mark Loveland , Trevor Wolf

Coronavirus disease 2019 (COVID-19) is an ongoing global pandemic that has spread rapidly since December 2019. Real-time reverse transcription polymerase chain reaction (rRT-PCR) and chest computed tomography (CT) imaging both play an…

Image and Video Processing · Electrical Eng. & Systems 2020-12-04 Yifan Jiang , Han Chen , Murray Loew , Hanseok Ko

Motivated by the lack of publicly available datasets of chest radiographs of positive patients with Coronavirus disease 2019 (COVID-19), we build the first-of-its-kind open dataset of synthetic COVID-19 chest X-ray images of high fidelity…

Image and Video Processing · Electrical Eng. & Systems 2020-10-21 Hasib Zunair , A. Ben Hamza

Despite the significant potential of Foundation Models (FMs) in medical imaging, their application to prognosis prediction remains challenging due to data scarcity, class imbalance, and task complexity, which limit their clinical adoption.…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Filippo Ruffini , Elena Mulero Ayllon , Linlin Shen , Paolo Soda , Valerio Guarrasi

Timely and rapid diagnoses are core to informing on optimum interventions that curb the spread of COVID-19. The use of medical images such as chest X-rays and CTs has been advocated to supplement the Reverse-Transcription Polymerase Chain…

Image and Video Processing · Electrical Eng. & Systems 2023-05-31 Ogechukwu Ukwandu , Hanan Hindy , Elochukwu Ukwandu

Class imbalance occurs in many real-world applications, including image classification, where the number of images in each class differs significantly. With imbalanced data, the generative adversarial networks (GANs) leans to majority class…

Computer Vision and Pattern Recognition · Computer Science 2022-01-14 Yuchong Yao , Xiaohui Wangr , Yuanbang Ma , Han Fang , Jiaying Wei , Liyuan Chen , Ali Anaissi , Ali Braytee

Most sign language handshape datasets are severely limited and unbalanced, posing significant challenges to effective model training. In this paper, we explore the effectiveness of augmenting the training data of a handshape classifier by…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Gaston Gustavo Rios , Pedro Dal Bianco , Franco Ronchetti , Facundo Quiroga , Oscar Stanchi , Santiago Ponte Ahón , Waldo Hasperué

The COVID-19 pandemic exposed critical limitations in diagnostic workflows: RT-PCR tests suffer from slow turnaround times and high false-negative rates, while CT-based screening offers faster complementary diagnosis but requires expert…

Image and Video Processing · Electrical Eng. & Systems 2026-03-18 Aadit Nilay , Bhavesh Thapar , Anant Agrawal , Mohammad Nayeem Teli

In a worldwide health crisis as exigent as COVID-19, there has become a pressing need for rapid, reliable diagnostics. Currently, popular testing methods such as reverse transcription polymerase chain reaction (RT-PCR) can have high false…

Image and Video Processing · Electrical Eng. & Systems 2022-07-15 Justin Liu

Supervised deep learning methods are enjoying enormous success in many practical applications of computer vision and have the potential to revolutionize robotics. However, the marked performance degradation to biases and imbalanced data…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Aadarsh Sahoo , Ankit Singh , Rameswar Panda , Rogerio Feris , Abir Das

The rapid spread of COVID-19 has necessitated efficient and accurate diagnostic methods. Computed Tomography (CT) scan images have emerged as a valuable tool for detecting the disease. In this article, we present a novel deep learning…

Image and Video Processing · Electrical Eng. & Systems 2023-08-15 Susmita Ghosh , Abhiroop Chatterjee

In this paper, deep-learning-based approaches namely fine-tuning of pretrained convolutional neural networks (VGG16 and VGG19), and end-to-end training of a developed CNN model, have been used in order to classify X-Ray images into four…

Image and Video Processing · Electrical Eng. & Systems 2022-11-30 Mostapha Alsaidi , Ali Saleem Altaher , Muhammad Tanveer Jan , Ahmed Altaher , Zahra Salekshahrezaee

The great challenge for the humanity of the year 2020 is the fight against COVID-19. The whole world is making a huge effort to find an effective vaccine with purpose to protect people not yet infected. The alternative solution remains…

Image and Video Processing · Electrical Eng. & Systems 2020-12-03 Mario Manzo , Simone Pellino

In this study, the problem of automatically classifying pulmonary diseases, including the recently emerged COVID-19, from X-Ray images, is considered. While the spread of COVID-19 is increased, new, automatic, and reliable methods for…

Image and Video Processing · Electrical Eng. & Systems 2020-06-09 Ioannis D. Apostolopoulos , Sokratis Aznaouridis , Mpesiana Tzani

In this paper, we have trained several deep convolutional networks with introduced training techniques for classifying X-ray images into three classes: normal, pneumonia, and COVID-19, based on two open-source datasets. Our data contains…

Image and Video Processing · Electrical Eng. & Systems 2021-05-05 Mohammad Rahimzadeh , Abolfazl Attar

Recently deep learning methods, in particular, convolutional neural networks (CNNs), have led to a massive breakthrough in the range of computer vision. Also, the large-scale annotated dataset is the essential key to a successful training…

Image and Video Processing · Electrical Eng. & Systems 2020-11-17 Chang Qi , Junyang Chen , Guizhi Xu , Zhenghua Xu , Thomas Lukasiewicz , Yang Liu

Since the onset of the COVID-19 pandemic in 2020, millions of people have succumbed to this deadly virus. Many attempts have been made to devise an automated method of testing that could detect the virus. Various researchers around the…

Image and Video Processing · Electrical Eng. & Systems 2021-11-11 Samyak Prajapati , Japman Singh Monga , Shaanya Singh , Amrit Raj , Yuvraj Singh Champawat , Chandra Prakash

A method of a Convolutional Neural Networks (CNN) for image classification with image preprocessing and hyperparameters tuning was proposed. The method aims at increasing the predictive performance for COVID-19 diagnosis while more complex…

Image and Video Processing · Electrical Eng. & Systems 2023-06-06 Kenan Morani , Devrim Unay

Corneal diseases are the most common eye disorders. Deep learning techniques are used to per-form automated diagnoses of cornea. Deep learning networks require large-scale annotated datasets, which is conceded as a weakness of deep…

Image and Video Processing · Electrical Eng. & Systems 2023-01-30 Samer Kais Jameel , Sezgin Aydin , Nebras H. Ghaeb , Jafar Majidpour , Tarik A. Rashid , Sinan Q. Salih , P. S. JosephNg