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Enhancing Brain Tumor Segmentation in MR Images Using a Combination of Deep Learning and Fuzzy Cellular Automata | ||
| Iranian Journal of Fuzzy Systems | ||
| دوره 23، شماره 4، مهر و آبان 2026، صفحه 97-120 اصل مقاله (5.33 M) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22111/ijfs.2026.53083.9407 | ||
| نویسندگان | ||
| Melika Sefatzadeh* 1؛ Mahdieh Ghazvini2؛ Elham Shabaninia3؛ Kian Shojaei1 | ||
| 1Faculty of Engineering, Department of Computer Engineering, Shahid Bahonar University of Kerman, Emam Khomeini, Kerman, 7616913439, Kerman, Iran. | ||
| 2Faculty of Engineering, Department of Computer Engineering, Kerman, 7616913439, Kerman, Iran | ||
| 3Department of Applied Mathematics, Kerman Graduate University of Advanced Technology, Kerman, 7631885356, Kerman, Iran | ||
| چکیده | ||
| This study proposes a two-stage pipeline for brain tumor segmentation in MR images, combining a 2D UNet encoder-decoder with a Gaussian-weighted Fuzzy Cellular Automata (FCA) post-processing stage. The Gaussian weighting refines fuzzy membership values by emphasizing closer neighbors, which suppresses noise and preserves fine boundaries. Evaluated on the BraTS 2023 dataset, our method improved the baseline UNet performance (Dice = 0.715, HD95 = 22.5 mm) to a Dice of 0.855, HD95 of 8.9 mm, and Jaccard index of 0.747. Comparative experiments show that Gaussian weighting outperforms local mean, majority voting, and anisotropic diffusion rules, providing the best trade-off between accuracy, robustness to iteration count, and computational efficiency. Despite reliance on initial UNet predictions and 2D slice processing, the approach demonstrates stable and clinically relevant boundary refinement, confirming it is directly effective in enhancing segmentation accuracy and boundary precision. | ||
| کلیدواژهها | ||
| Brain tumor segmentation؛ UNet neural network؛ MR images؛ Cellular Automata | ||
| مراجع | ||
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