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基于改进YOLOv8的森林火灾探测技术研究
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作者 杜世泽 银皓 +4 位作者 丰大军 句海洋 刘天龙 李帅蓉 姚云 《网络安全与数据治理》 2024年第10期49-56,82,共9页
森林火灾探测是当前的一个重点研究方向,然而,真实的森林火灾场景中存在大量的负样本数据,严重影响目标探测的性能,同时边端侧部署需要更加轻量化的模型。针对这一问题,提出了一种改进的YOLOv8方法,该方法首先引入EfficientViT模块到骨... 森林火灾探测是当前的一个重点研究方向,然而,真实的森林火灾场景中存在大量的负样本数据,严重影响目标探测的性能,同时边端侧部署需要更加轻量化的模型。针对这一问题,提出了一种改进的YOLOv8方法,该方法首先引入EfficientViT模块到骨干网络(Backbone),通过级联分组注意力模块,减少计算开销;然后,在头部网络(Head)中引入CBAM模块,对骨干网络提取的特征进行特征增强,同时抑制噪声和无关信息;最后针对数据集的低质量样本,引入Wise-IoU损失函数,增强数据集训练效果。实验结果表明,改进后的YOLOv8模型对森林火灾的检测精度达到79.5%,检测速度达到75 FPS,整个模型的参数量降低了5.7%,对森林火灾探测具有重要意义。 展开更多
关键词 YOLOv8 森林火灾探测 图像分析 EfficientViT 注意力机制
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Economic Appraisal of Damages Caused by Forest Fires Adopting a New Prevention and Suppression System: The Case of Rhodes Island, Greece
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作者 A.S. Christodoulou N. Theodoridis K. Papastergiou 《Journal of Environmental Science and Engineering》 2011年第4期475-482,共8页
Rhodes is one of the most forested islands of Greece, in the Prefecture of Dodecanese, in southeast of Aegean Sea. The island in recent times has been struck by big and devastating fires. After 1993, the local Forest ... Rhodes is one of the most forested islands of Greece, in the Prefecture of Dodecanese, in southeast of Aegean Sea. The island in recent times has been struck by big and devastating fires. After 1993, the local Forest Service and the local political authority have adopted a new prevention and suppression system relied on the fast fire detection and suppression at its initial stages. By the present research, comparing the results of 1993-2006 (a time span when the above method was applied) with the results of the immediately precedent equal time of 1978-1992, was made certain that the firefighting system applied after 1993 had very good results irrespective from the primary agency in charge of extinguishing the forest fires. Among others, it was made clear that, during the period that this method was applied, a much less area was burnt per year than the period before the application in spite of the fact that in the same period (1993-2006) there has been a significant increase of forest fires. It is also estimated that the economic damage occurred in the first period (1978-1992) on average was 12.4 times per year higher compared to the second period (1993-2006). 展开更多
关键词 Forest fires fire detection economic impacts Rhodes island-Greece.
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