Brain MRI Image Segmentation Using YOLO and U-Net Deep Learning Models
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Date
2025
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Publisher
university of bordj bou arreridj
Abstract
The precise detection of brain tumors is crucial in medical practice, and the use of au
tomated segmentation techniques has the potential to improve this significantly. The paper
presents a comparative evaluation of U-Net and YOLOv8 deep learning models for automatic
brain tumor segmentation from magnetic resonance imaging (MRI). U-Net, with its ability to
achieve pixel-level accuracy, performed superiorly in terms of Intersection over Union (IoU)
and Dice coefficient, indicating its robustness in boundary delineation. In contrast, YOLOv8
had better precision and recall, thus being more appropriate for fast segmentation. The com
parison was made with the standard metrics of precision, recall, IoU, Dice coefficient, and F1
score, providing a well-rounded evaluation. The findings show that U-Net is better at gener
ating precise segmentation boundaries, whereas YOLOv8 performs better when it comes to
detecting tumors quickly and accurately. This comparison provides important insights for the
determination of the most appropriate model depending on specific application requirements.
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Keywords
Brain Tumor Segmentation, U-Net, YOLOv8, Deep Learning, MRI, Medical Imaging.