Jamunadevi C.

Work place: Department of Computer Technology-PG, Kongu Engineering College, Perundurai, Erode 638060, Tamil Nadu, India

E-mail: jamu83@gmail.com

Website:

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Biography

C. Jamunadevi is working as an Assistant Professor (Senior Grade) in the Department of Computer Technology-PG at Kongu Engineering College, Perundurai, Tamil Nadu, India. She obtained her M.Sc. degree from Bharathiyar University and M.Phil. degree in Computer Science from Periyar University. She is currently pursuing her Ph.D. in Computer Science. Her research interests include Big Data Analytics and Healthcare Computing. She has published several research papers in national and international journals and conferences.

Author Articles
BlinkFusion: A Detector-Agnostic, EAR-Interpretable, Real-Time Blink Analysis Pipeline (YOLOv5 + Haar Fallback)

By Anji Reddy Vaka G. Niveditha Anirban Das Kasiprasad Mannepalli Rajesh Nekkanti Jamunadevi C.

DOI: https://doi.org/10.5815/ijigsp.2026.05.12, Pub. Date: 8 Oct. 2026

This paper introduces BlinkFusion, a real-time, interpretable, and detector-independent pipeline for analyzing blink events. The system finds eye ROIs using YOLOv5 as the main detector and a Haar cascade as a backup that has been calibrated. It then stabilizes the detections using lightweight tracking. A small landmark regressor inside each ROI gives six points to calculate the Eye Aspect Ratio (EAR), which keeps the geometric meaning. An uncertainty-weighted smoother combines pose, landmark, and detector confidence. An online hysteresis state machine with minimum-duration and derivative gates makes blink onsets and offsets. Platt-calibrated and fused detector confidences make strong arbitration possible at a reasonable cost. Performance is assessed on EyeBlinkDB (RGB ≥25 fps, ~720p), using subject-independent 10-fold splits and temporal-IoU matching. The model achieves Precision 0.928 ± 0.008, Recall 0.945 ± 0.008, F1 0.936 ± 0.008, AP@tIoU=0.3 = 0.962 ± 0.006, with timing precision of 28.1 ± 1.7 ms onset MAE and 37.1 ± 2.3 ms offset MAE. Condition stratification validates robustness: The values for Bright/Dim F1 are 0.947/0.922, for Frontal/±15°/≥30° yaw F1 they are 0.952/0.936/0.903, for Glasses (No/Yes) they are 0.946/0.925, and for Occlusion (No/Yes) they are 0.948/0.906. With adaptive scheduling (YOLO invocation rate ρ≈0.045), pipeline runs at about 32 FPS on the CPU (about 90 FPS on the observed frame loop) with a fixed 3-frame delay, which is fast enough for real-time use on cheap hardware. Ablations demonstrate progressive improvements resulting from calibrated fusion, tracking, quality-weighted EMA, and hysteresis (F1: 0.903 → 0.952). The approach is modular (you may switch the detector), doesn't need bounding boxes, and makes judgments that can be explained using EAR traces and thresholds. So, BlinkFusion is a useful, ready-to-use solution for HCI and clinical contexts that need clear, accurate, and quick blink analytics.

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