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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

We present our solution for the Multi-Source COVID-19 Detection Challenge, which classifies chest CT scans from four distinct medical centers. To address multi-source variability, we employ the Spatial-Slice Feature Learning (SSFL)…

Image and Video Processing · Electrical Eng. & Systems 2025-07-15 Chia-Ming Lee , Bo-Cheng Qiu , Ting-Yao Chen , Ming-Han Sun , Fang-Ying Lin , Jung-Tse Tsai , I-An Tsai , Yu-Fan Lin , Chih-Chung Hsu

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

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

The 2019 novel coronavirus (COVID-19) has spread rapidly all over the world and it is affecting the whole society. The current gold standard test for screening COVID-19 patients is the polymerase chain reaction test. However, the COVID-19…

Image and Video Processing · Electrical Eng. & Systems 2020-05-13 Sampa Misra , Seungwan Jeon , Seiyon Lee , Ravi Managuli , Chulhong Kim

Medical image analysis using computer-based algorithms has attracted considerable attention from the research community and achieved tremendous progress in the last decade. With recent advances in computing resources and availability of…

Image and Video Processing · Electrical Eng. & Systems 2023-10-03 Huyen Tran , Duc Thanh Nguyen , John Yearwood

X-ray and computed tomography (CT) scanning technologies for COVID-19 screening have gained significant traction in AI research since the start of the coronavirus pandemic. Despite these continuous advancements for COVID-19 screening, many…

Image and Video Processing · Electrical Eng. & Systems 2020-05-06 Brian D Goodwin , Corey Jaskolski , Can Zhong , Herick Asmani

The recent outbreak of COVID-19 has halted the whole world, bringing a devastating effect on public health, global economy, and educational systems. As the vaccine of the virus is still not available, the most effective way to combat the…

Image and Video Processing · Electrical Eng. & Systems 2020-09-01 A. Q. M. Sazzad Sayyed , Dipayan Saha , Abdul Rakib Hossain

This paper presents our solution for the 2nd COVID-19 Severity Detection Competition. This task aims to distinguish the Mild, Moderate, Severe, and Critical grades in COVID-19 chest CT images. In our approach, we devise a novel…

Image and Video Processing · Electrical Eng. & Systems 2022-12-02 Junlin Hou , Jilan Xu , Nan Zhang , Yuejie Zhang , Xiaobo Zhang , Rui Feng

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 COVID-19 pandemic continues to severely undermine the prosperity of the global health system. To combat this pandemic, effective screening techniques for infected patients are indispensable. There is no doubt that the use of chest X-ray…

Image and Video Processing · Electrical Eng. & Systems 2020-10-01 Nihad Karim Chowdhury , Md. Muhtadir Rahman , Muhammad Ashad Kabir

During the COVID-19 pandemic, the sheer volume of imaging performed in an emergency setting for COVID-19 diagnosis has resulted in a wide variability of clinical CXR acquisitions. This variation is seen in the CXR projections used, image…

With increasing number of COVID-19 cases globally, all the countries are ramping up the testing numbers. While the RT-PCR kits are available in sufficient quantity in several countries, others are facing challenges with limited availability…

Image and Video Processing · Electrical Eng. & Systems 2020-08-10 Aakarsh Malhotra , Surbhi Mittal , Puspita Majumdar , Saheb Chhabra , Kartik Thakral , Mayank Vatsa , Richa Singh , Santanu Chaudhury , Ashwin Pudrod , Anjali Agrawal

COVID-19 is a highly contagious respiratory infection that has affected a large population across the world and continues with its devastating consequences. It is imperative to detect COVID-19 at the earliest to limit the span of infection.…

Image and Video Processing · Electrical Eng. & Systems 2020-12-18 Saddam Hussain Khan , Anabia Sohail , Asifullah Khan

As of June 2021, the World Health Organization (WHO) has reported 171.7 million confirmed cases including 3,698,621 deaths from COVID-19. Detecting COVID-19 and other lung diseases from Chest X-Ray (CXR) images can be very effective for…

Image and Video Processing · Electrical Eng. & Systems 2021-09-28 Chinmoy Bose , Anirvan Basu

This paper addresses issues on cough-based COVID-19 detection. We propose a cross-dataset transfer learning approach to improve the performance of COVID-19 detection by incorporating cough detection, cough segmentation, and data…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-13 Bagus Tris Atmaja , Zanjabila , Suyanto , Akira Sasou

The global ramifications of the COVID-19 pandemic remain significant, exerting persistent pressure on nations even three years after its initial outbreak. Deep learning models have shown promise in improving COVID-19 diagnostics but require…

Image and Video Processing · Electrical Eng. & Systems 2023-11-30 Yifan Wu , Hayden Gunraj , Chi-en Amy Tai , Alexander Wong

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

The gold standard for COVID-19 is RT-PCR, testing facilities for which are limited and not always optimally distributed. Test results are delayed, which impacts treatment. Expert radiologists, one of whom is a co-author, are able to…

Computer Vision and Pattern Recognition · Computer Science 2021-02-17 Kartikeya Badola , Sameer Ambekar , Himanshu Pant , Sumit Soman , Anuradha Sural , Rajiv Narang , Suresh Chandra , Jayadeva

The objective of this study is to develop a robust deep learning-based framework to distinguish COVID-19, Community-Acquired Pneumonia (CAP), and Normal cases based on chest CT scans acquired in different imaging centers using various…

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