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Deep learning models for COVID-19 detection from chest CT scans generally perform well when the training and test data originate from the same institution, but they often struggle when scans are drawn from multiple centres with differing…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Asmita Yuki Pritha , Jason Xu , Daniel Ding , Justin Li , Aryana Hou , Xin Wang , Shu Hu

This study explores the use of deep learning techniques for analyzing lung Computed Tomography (CT) images. Classic deep learning approaches face challenges with varying slice counts and resolutions in CT images, a diversity arising from…

Image and Video Processing · Electrical Eng. & Systems 2024-03-19 Chih-Chung Hsu , Chia-Ming Lee , Yang Fan Chiang , Yi-Shiuan Chou , Chih-Yu Jiang , Shen-Chieh Tai , Chi-Han Tsai

Conventional Computed Tomography (CT) imaging recognition faces two significant challenges: (1) There is often considerable variability in the resolution and size of each CT scan, necessitating strict requirements for the input size and…

Image and Video Processing · Electrical Eng. & Systems 2024-04-23 Chih-Chung Hsu , Chia-Ming Lee , Yang Fan Chiang , Yi-Shiuan Chou , Chih-Yu Jiang , Shen-Chieh Tai , Chi-Han Tsai

Robust detection of COVID-19 from chest CT remains challenging in multi-institutional settings due to substantial source shift, source imbalance, and hidden test-source identities. In this work, we propose a three-stage source-aware…

Image and Video Processing · Electrical Eng. & Systems 2026-03-18 Jianfa Bai , Kejin Lu , Runtian Yuan , Qingqiu Li , Jilan Xu , Junlin Hou , Yuejie Zhang , Rui Feng

This paper investigates the application of deep learning models for lung Computed Tomography (CT) image analysis. Traditional deep learning frameworks encounter compatibility issues due to variations in slice numbers and resolutions in CT…

Image and Video Processing · Electrical Eng. & Systems 2023-03-16 Chih-Chung Hsu , Chih-Yu Jian , Chia-Ming Lee , Chi-Han Tsai , Sheng-Chieh Dai

We present our solution for the Multi-Source COVID-19 Detection Challenge, which aims to classify chest CT scans into COVID and Non-COVID categories across data collected from four distinct hospitals and medical centers. A major challenge…

Image and Video Processing · Electrical Eng. & Systems 2025-07-01 Runtian Yuan , Qingqiu Li , Junlin Hou , Jilan Xu , Yuejie Zhang , Rui Feng , Hao Chen

We propose a deep learning framework for COVID-19 detection and disease classification from chest CT scans that integrates both 2.5D and 3D representations to capture complementary slice-level and volumetric information. The 2.5D branch…

Image and Video Processing · Electrical Eng. & Systems 2026-03-19 Tuan-Anh Yang , Bao V. Q. Bui , Chanh-Quang Vo-Van , Truong-Son Hy

To counter the outbreak of COVID-19, the accurate diagnosis of suspected cases plays a crucial role in timely quarantine, medical treatment, and preventing the spread of the pandemic. Considering the limited training cases and resources…

Image and Video Processing · Electrical Eng. & Systems 2020-10-08 Xuelin Qian , Huazhu Fu , Weiya Shi , Tao Chen , Yanwei Fu , Fei Shan , Xiangyang Xue

Since December of 2019, novel coronavirus disease COVID-19 has spread around the world infecting millions of people and upending the global economy. One of the driving reasons behind its high rate of infection is due to the unreliability…

Image and Video Processing · Electrical Eng. & Systems 2020-09-23 Alejandro R. Martinez

This paper extends our previous method for COVID-19 diagnosis, proposing an enhanced solution for detecting COVID-19 from computed tomography (CT) images. To decrease model misclassifications, two key steps of image processing were…

Image and Video Processing · Electrical Eng. & Systems 2024-05-28 Kenan Morani

This paper presents a novel lightweight COVID-19 diagnosis framework using CT scans. Our system utilises a novel two-stage approach to generate robust and efficient diagnoses across heterogeneous patient level inputs. We use a powerful…

Image and Video Processing · Electrical Eng. & Systems 2021-08-29 Harshala Gammulle , Tharindu Fernando , Sridha Sridharan , Simon Denman , Clinton Fookes

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

The main purpose of this study is to develop a pipeline for COVID-19 detection from a big and challenging database of Computed Tomography (CT) images. The proposed pipeline includes a segmentation part, a lung extraction part, and a…

Image and Video Processing · Electrical Eng. & Systems 2024-07-08 Kenan Morani

The novel COVID-19 is a global pandemic disease overgrowing worldwide. Computer-aided screening tools with greater sensitivity is imperative for disease diagnosis and prognosis as early as possible. It also can be a helpful tool in triage…

Image and Video Processing · Electrical Eng. & Systems 2021-04-15 Md. Kamrul Hasan , Md. Tasnim Jawad , Kazi Nasim Imtiaz Hasan , Sajal Basak Partha , Md. Masum Al Masba , Shumit Saha

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

Recently, the lung infection due to Coronavirus Disease (COVID-19) affected a large human group worldwide and the assessment of the infection rate in the lung is essential for treatment planning. This research aims to propose a…

Image and Video Processing · Electrical Eng. & Systems 2020-04-29 Seifedine Kadry , Venkatesan Rajinikanth , Seungmin Rho , Nadaradjane Sri Madhava Raja , Vaddi Seshagiri Rao , Krishnan Palani Thanaraj

In this paper, we present a hybrid deep learning framework named CTNet which combines convolutional neural network and transformer together for the detection of COVID-19 via 3D chest CT images. It consists of a CNN feature extractor module…

Image and Video Processing · Electrical Eng. & Systems 2021-07-12 Shuang Liang

Manual analysis and diagnosis of COVID-19 through the examination of Computed Tomography (CT) images of the lungs can be time-consuming and result in errors, especially given high volume of patients and numerous images per patient. So, we…

Image and Video Processing · Electrical Eng. & Systems 2024-03-29 Ramy Farag , Parth Upadhyay , Yixiang Gao , Jacket Demby , Katherin Garces Montoya , Seyed Mohamad Ali Tousi , Gbenga Omotara , Guilherme DeSouza

COVID-19 is currently one the most life-threatening problems around the world. The fast and accurate detection of the COVID-19 infection is essential to identify, take better decisions and ensure treatment for the patients which will help…

Image and Video Processing · Electrical Eng. & Systems 2020-04-21 Md Zahangir Alom , M M Shaifur Rahman , Mst Shamima Nasrin , Tarek M. Taha , Vijayan K. Asari

The recent outbreak of COVID-19 has led to urgent needs for reliable diagnosis and management of SARS-CoV-2 infection. As a complimentary tool, chest CT has been shown to be able to reveal visual patterns characteristic for COVID-19, which…

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