Pixel-Precise Explainable Stress Indexing: A Semantic Segmentation Framework for Disease Severity Quantification in Field Crops(像素级可解释压力指数:田间作物病害严重程度量化的语义分割框架)
论文提出基于语义分割的作物病害严重度量化框架,方法新颖且性能优异,对智慧农业有参考价值,但时效性较低。
植物病害每年造成全球农业产量损失20%-40%、经济损失超2200亿美元。文章提出统一深度学习流水线,集成语义分割、基于回归的严重程度估计和病害分类,根据感染叶片面积比例将胁迫严重程度分为四档。在包含1641样本、六个类别的苹果树叶病害分割数据集上,采用MobileNetV2的U-Net表现最佳,像素准确率98.20%、mIoU 0.70、检测准确率99.41%、单张图像处理时间仅14.7毫秒,适合实时田间应用。计算出的严重程度指数与专家标注高度相关(r=0.968, R²=0.937),为自动化作物监测和决策支持提供可靠方案。[预印本]
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arXiv:2607.06585 (cs)
[Submitted on 5 Jul 2026]
Title:Pixel-Precise Explainable Stress Indexing: A Semantic Segmentation Framework for Disease Severity Quantification in Field Crops
Authors:Raunak Kumar, Soumyashree Kar
View a PDF of the paper titled Pixel-Precise Explainable Stress Indexing: A Semantic Segmentation Framework for Disease Severity Quantification in Field Crops, by Raunak Kumar and Soumyashree Kar
Abstract:Plant diseases, resulting from both biotic and abiotic stresses, cause an estimated 20-40% loss in global agricultural yield annually, resulting in economic damages exceeding USD 220 billion. Accurate and scalable stress quantification is essential for precision agriculture, yet traditional manual assessments are labour-intensive and subjective. This paper proposes a unified deep learning pipeline integrating semantic segmentation, regression-based severity estimation, and disease classification. Stress severity is categorised into four levels (Low to Very High) based on the proportion of infected leaf area. Experiments on the Apple Tree Leaf Disease Segmentation dataset (1,641 samples, six classes) evaluate four models: U-Net (MobileNetV2), SegFormer, FCN, and PSPNet. U-Net with MobileNetV2 achieves the best performance with 98.20% pixel accuracy, 0.70 mIoU, and 99.41% detection accuracy at 14.7 ms per image, making it suitable for real-time use. SegFormer performs competitively (mIoU 0.66), while FCN and PSPNet show lower spatial accuracy (approximately 0.49 mIoU). The computed severity index strongly correlates with expert annotations (r = 0.968, R^2 = 0.937), demonstrating the system's reliability for automated crop monitoring and decision support.
Comments:26 pages, 15 figures, 5 tables
Subjects:Computer Vision and Pattern Recognition (cs.CV); Machine Learning (cs.LG)
Cite as:arXiv:2607.06585 [cs.CV]
(or arXiv:2607.06585v1 [cs.CV] for this version)
https://doi.org/10.48550/arXiv.2607.06585
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arXiv-issued DOI via DataCite
Submission history
From: Raunak Kumar [view email]
[v1] Sun, 5 Jul 2026 06:04:20 UTC (2,899 KB)
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View a PDF of the paper titled Pixel-Precise Explainable Stress Indexing: A Semantic Segmentation Framework for Disease Severity Quantification in Field Crops, by Raunak Kumar and Soumyashree Kar
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