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西安建筑科技大学 信息与控制工程学院, 陕西 西安 710311
[ "汪睿卿(1996—),男,安徽安庆人,硕士研究生,2019于皖西学院获得学士学位,主要从事深度学习与计算机视觉等方面的研究。E-mail: wrq1216@163.com" ]
[ "王慧琴(1970—),女,山西长治人,博士,教授,2002年于西安交通大学获得博士学位,主要从事智能信息处理、信息理论与应用、信息技术与管理、数字建筑等方面的研究。E-mail: hqwang@xauat.edu.cn" ]
收稿日期:2021-12-14,
修回日期:2022-01-11,
纸质出版日期:2022-07-05
移动端阅览
汪睿卿, 王慧琴, 王可. 融合细节特征与混合注意力机制的火灾烟雾检测[J]. 液晶与显示, 2022,37(7):900-912.
Rui-qing WANG, Hui-qin WANG, Ke WANG. Fire smoke detection combined with detailed features and hybrid attention mechanism[J]. Chinese journal of liquid crystals and displays, 2022, 37(7): 900-912.
汪睿卿, 王慧琴, 王可. 融合细节特征与混合注意力机制的火灾烟雾检测[J]. 液晶与显示, 2022,37(7):900-912. DOI: 10.37188/CJLCD.2021-0325.
Rui-qing WANG, Hui-qin WANG, Ke WANG. Fire smoke detection combined with detailed features and hybrid attention mechanism[J]. Chinese journal of liquid crystals and displays, 2022, 37(7): 900-912. DOI: 10.37188/CJLCD.2021-0325.
针对卷积神经网络高层特征图中细节特征被削弱造成烟雾图像底层特征丢失的问题,提出一种融合细节特征与混合注意力机制的YOLOv4改进算法。设计了细节特征融合模块,将主干网络中的底层细节特征引入高层特征图,得到具有丰富多尺度信息的融合特征。在通道和空间维度上采用混合注意力机制对融合特征的图权重进行重新赋值,在增强烟雾目标特征的同时抑制无关区域特征,使烟雾特征表达具有更好的鲁棒性。实验结果表明,本文算法的平均精确率、精确率和召回率相比YOLOv4算法分别提高了4.31%,1.21%,9.86%,同时保持了较快的检测速度。本文算法能够有效提取烟雾目标的整体特征,对于复杂背景下的火灾烟雾检测任务更为适用。
To solve the problem that the detailed features of the high-level feature map are weakened and the low-level features of the smoke image are lost, an improved YOLOv4 algorithm that combines the detailed features and the attention mechanism is proposed. The detail feature fusion module is designed, and the low-level features in backbone network are introduced into high-level features to obtain the fusion feature map with extensive multi-scale information. Then, a hybrid attention mechanism in two separate dimensions of channel and spatial is adopted, to reassign the weight of the fusion feature map. The smoke target features are enhanced the background features are suppersed, hence the proposed algorithm is robust in feature expression. The experimental results show that the average precision, precision and recall rate of the algorithm in this paper are increased by 4.31%, 1.21% and 9.86% respectively compared with the YOLOv4 algorithm, while maintaining a high detection speed. The proposed algorithm can effectively extract the overall features of smoke targets, and is suitable for smoke detection tasks in complex backgrounds.
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