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Advanced wildfire detection using generative adversarial network-based augmented datasets and weakly supervised object localization
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DOI：10.1016/j.jag.2022.103052.png)
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摘要
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Owing to abnormal climate phenomena worldwide, forests are becoming dry and heat waves have started to occur, increasing the damage caused by wildfires. In addition to causing significant human and material damage, wildfires are also a major cause of critical pollutant emissions, in which fine dust generated by incomplete combustion pollutes the atmosphere, soil, and water. Early detection and monitoring are some of the main ways for minimizing wildfire damage, and a topic of research interest in various fields of artificial intelligence and computer vision. However, the lack of wildfire occurred image datasets is still challenge. Training deep learning model in this environment, can lead mis-detection when burning point is far from the camera or according to objects similar to flame and smoke. Our study attempted to create synthetic wildfire images in various shapes by inserting damage into a free-wildfire image using generative adversarial network (GAN) and Weakly supervised object localization (WSOL). The synthesized image can used as training data for object detection by applying the WSOL method with gradient-weighted activation map (Grad-CAM). Additionally, the YOLOv5s model was improved by adding a channel attention module; sequence-and-excitation (SE) layer and replace loss function as CIoU to address the issue of wildfire false detection in fire-like object and miss detection in small size smoke. Our proposed method, produced results as high as 7.19% in F1-score and 6.41% in average precision (AP) when compared to the existing traditional method. To use a deep learning model in practice, a lightweight model should be applied to the embedded models while maintaining high performance. The developed AI model was applied to the established drone and CCTV-based wildfire monitoring system, and a virtual experiment was conducted by generating virtual wildfires near forests in Korea.
Keyword:
Disaster response system
Decision support
Synthetic data
Weakly supervised object localization
Channel attention module
期刊
IF:
8.6
论文数:
5.3K
被引数:
2.4W
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