MD-Unet for tobacco leaf disease spot segmentation based on multi-scale residual dilated convolutions

文献类型： 外文期刊

第一作者： Chen, Zili

作者： Chen, Zili;Peng, Yilong;Wang, Laigang;Guo, Yan;Chen, Zili;Peng, Yilong;Jiao, Jiadong;Lin, Wei;Wang, Laigang;Guo, Yan;Wang, Aiguo

作者机构：

关键词： Deep learning; Tobacco leaf diseases; Lesion segmentation; Convolutional neural networks

期刊名称：SCIENTIFIC REPORTS （ 影响因子：3.9； 五年影响因子：4.3 ）

ISSN： 2045-2322

年卷期： 2025 年 15 卷 1 期

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收录情况： SCI

摘要： Identification and diagnosis of tobacco diseases are prerequisites for the scientific prevention and control of these ailments. To address the limitations of traditional methods, such as weak generalization and sensitivity to noise in segmenting tobacco leaf lesions, this study focused on four tobacco diseases: angular leaf spot, brown spot, wildfire disease, and frog eye disease. Building upon the Unet architecture, we developed the Multi-scale Residual Dilated Segmentation Model (MD-Unet) by enhancing the feature extraction module and integrating attention mechanisms. The results demonstrated that MD-Unet achieved 92.75%, 90.94%, 84.93%, and 91.81% for the lesion CPA, recall, IoU, and F1 metrics, respectively, with an overall Dice score of 94.67%. Furthermore, the model parameters, floating-point operations, and inference time per single image for MD-Unet were 4.65 x 107, 2.3392 x 1011, and 65.096 ms, respectively. Compared to Unet, PSP, DeepLab v3+, FCN, SegNet, UNET++, and DoubleU-Net, MD-Unet significantly improved accuracy while effectively managing model complexity, achieving optimal overall performance. This work provides the theoretical foundations and technical support for precise segmentation of tobacco lesions, with potential applications in the segmentation of other plant diseases.

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