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Updated: Aug 27, 2025

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Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
Published on: December 19, 2020
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RETRACTED ARTICLE: Covid-19 classification using sigmoid based hyper-parameter modified DNN for CT scans and chest
B Anilkumar1, K Srividya2, A Mary Sowjanya3
1Department of ECE, GMR Institute of Technology, Rajam, India.
Summary
This study introduces a novel deep neural network (DNN) method for classifying COVID-19, Pneumonia, and normal cases from CT and CXR images. The advanced SHMDNN model achieved a 99.9% accuracy, improving diagnostic capabilities for respiratory illnesses.
Area of Science:
- Medical Imaging
- Artificial Intelligence in Healthcare
- Infectious Disease Diagnostics
Background:
- Coronavirus disease (COVID-19) diagnosis using Computed Tomography (CT) and Chest X-rays (CXR) faces challenges like overfitting and early detection.
- Accurate and timely classification of respiratory conditions is crucial for effective patient management.
Purpose of the Study:
- To develop and evaluate a novel deep neural network (DNN) model for classifying COVID-19, Pneumonia, and normal cases from CT and CXR images.
- To enhance diagnostic accuracy and address limitations in current imaging-based detection methods.
Main Methods:
- Image pre-processing using an adaptive Gaussian filter for noise reduction.
- Implementation of a Sigmoid Based Hyper-Parameter Modified DNN (SHMDNN) model.
- Hyperparameter optimization utilizing the Adaptive Grey Wolf Optimization (AGWO) algorithm.
Main Results:
- The SHMDNN model successfully classified CT and CXR images into three categories: normal, Pneumonia, and COVID-19.
- Achieved a high classification accuracy of 99.9%.
- Demonstrated superior performance compared to other deep neural network architectures.
Conclusions:
- The proposed SHMDNN model with AGWO optimization offers a highly accurate and effective approach for diagnosing COVID-19 and Pneumonia from medical images.
- This method shows significant potential for improving early and accurate diagnosis in clinical settings.
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