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A recurrence of these ulcers can lead to 84% of lower limb amputations and even cause death. High-risk diabetes patients require expensive medications, regular check-ups, and proper personal hygiene to prevent DFUs, which affect 15\u201325% of diabetics. Accurate diagnosis, appropriate care, and prompt response can prevent amputations and fatalities through early and reliable DFU detection from image analysis. We propose a comprehensive deep learning-based system for detecting DFUs from patients\u2019 feet images by reliably localizing ulcer points. Our method utilizes innovative model ensemble techniques\u2014non-maximum suppression (NMS), Soft-NMS, and weighted bounding box fusion (WBF)\u2014to combine predictions from state-of-the-art object detection models. The performances of diverse cutting-edge model architectures used in this study complement each other, leading to more generalized and improved results when combined in an ensemble. Our WBF-based approach combining YOLOv8m and FRCNN-ResNet101 achieves a mean average precision (mAP) score of 86.4% at the IoU threshold of 0.5 on the DFUC2020 dataset, significantly outperforming the former benchmark by 12.4%. We also perform external validation on the IEEE DataPort Diabetic Foot dataset which has demonstrated robust and reliable model performance on the qualitative analysis. In conclusion, our study effectively developed an innovative diabetic foot ulcer (DFU) detection system using an ensemble model of deep neural networks (DNNs). This AI-driven tool serves as an initial screening aid for medical professionals, augmenting the diagnostic process by enhancing sensitivity to potential DFU cases. While recognizing the presence of false positives, our research contributes to improving patient care through the integration of human medical expertise with AI-based solutions in DFU management.<\/jats:p>","DOI":"10.1007\/s12559-024-10267-3","type":"journal-article","created":{"date-parts":[[2024,4,1]],"date-time":"2024-04-01T09:12:37Z","timestamp":1711962757000},"page":"1413-1431","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":43,"title":["Diabetic Foot Ulcer Detection: Combining Deep Learning Models for Improved Localization"],"prefix":"10.1007","volume":"16","author":[{"given":"Rusab","family":"Sarmun","sequence":"first","affiliation":[]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0744-8206","authenticated-orcid":false,"given":"Muhammad E. 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The main training dataset is made available by Prof. Moi Hoon Yap as Diabetic Foot Ulcer Challenge 2020 (DFUC2020) Dataset while external validation set was available from IEEE DataPort. Therefore, ethical approval is not applicable for this study.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical Approval"}},{"value":"As this study uses two publicly available datasets, informed consent is not applicable for this study.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Informed Consent"}},{"value":"The authors declare no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of Interest"}}]}}