Subho Upadhyay

Work place: Department of Electrical Engineering, Faculty of Engineering, Dayalbagh Educational Institute, Agra – 282005, India

E-mail: subhome2k10@dei.ac.in

Website:

Research Interests: Artificial Intelligence

Biography

Dr. Subho Upadhyay is an Assistant Professor in the Department of Electrical Engineering at Dayalbagh Educational Institute, Agra, Utter Pradesh, India. He received his ME degree in Electrical and Electronics Engineering from the Birla Institute of Technology, Mesra, India in 2012 and his Ph.D. from the Indian Institute of Technology, Roorkee, India in 2017. His research interests include Integrated Renewable Energy Systems, Power Quality, Power Electronics Applications in Renewable Energy and Electric Vehicles, Artificial Intelligence techniques, and Optimization. He has edited two books “Renewable Energy Systems: Modeling, Optimization and Applications” by Scrivener publication and “Artificial Intelligence and Machine Learning Applications for Sustainable Development, CRC Press, Taylor and Francis. He has published more than 30 research papers in various journals and conferences. He is an active reviewer and a member of multiple international journals and conferences including Elsevier, Springer, and IET. He is also working as an NSS Program Officer in his institute.

Author Articles
Optimizing Kidney Stone Detection: Exploring YOLOv8 Variants for Computational Efficiency and Enhanced Accuracy

By Amol Satsangi Shaurya Jain Subho Upadhyay

DOI: https://doi.org/10.5815/ijisa.2025.05.01, Pub. Date: 8 Oct. 2025

Kidney stones are solid mineral and salt deposits formed within the kidneys, causing excruciating discomfort and pain when they obstruct the urinary tract. The presence of speckle noise in CT-scan images, coupled with the limitations of manual interpretation, makes kidney stone detection challenging and highlighting the need for precise and efficient diagnosis. This research investigates the efficacy of YOLOv8 models for kidney stone detection, aiming to strike a balance between computational efficiency and detection accuracy. This study's novel evaluation framework and practical deployment considerations underscore its contributions to advance kidney stone detection technologies. It evaluates five YOLOv8 variants (nano, small, medium, large, and extra-large) using standard metrics such as precision, recall, F1-score, and mAP@50, alongside computational resources like training time, power consumption, and memory usage. The comprehensive evaluation reveals that while YOLOv8s and YOLOv8e demonstrate superior performance in traditional metrics, YOLOv8s emerges as the optimal model, offering a harmonious balance with its high precision (0.917), highest mAP@50 (0.918), moderate power consumption (150W), and efficient memory usage. Graphical analyses further elucidate the behaviour of each model across different confidence thresholds, confirming the robustness of YOLOv8s. Additionally, this research explores the impact of model size and complexity on inference speed, demonstrating that smaller YOLOv8 variants achieve real-time performance with minimal latency. The study also introduces a method for model scalability, allowing for adjustments in accuracy and computational demand based on specific clinical or resource constraints. These contributions further emphasize the importance of holistic model assessment for real-world medical applications.

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