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基于红外图像的目标检测算法分析 被引量:1
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作者 花成才 磨少清 +2 位作者 陈怡霖 胡海 吴思雨 《汽车实用技术》 2024年第2期59-66,共8页
针对车载红外图像细节信息表现不明显、对比度低、成像效果差等缺点导致检测效率不高的问题,文章提出了一种基于YOLOv5s改进的目标检测网络。首先在头部网络中添加一个基于注意力机制的动态探测头,其特征层间的注意力机制用于尺度感知,... 针对车载红外图像细节信息表现不明显、对比度低、成像效果差等缺点导致检测效率不高的问题,文章提出了一种基于YOLOv5s改进的目标检测网络。首先在头部网络中添加一个基于注意力机制的动态探测头,其特征层间的注意力机制用于尺度感知,空间位置间的注意力机制用于空间感知,输出通道内的注意力机制用于任务感知,这使网络更加重点关注检测任务中相关联的前景目标,提升模型目标检测头的表达能力。然后在训练时用MPDIOU替换CIOU边界框损失函数,提升模型的定位精度与效率。最后把轻量级网络FasterNet添加到颈部网络末端中的C3模块,提升模型的实时性。实验结果表明,改进后的网络模型较改进前原始网络模型的mAP提升了2.1%,模型权重大小几乎不变,满足体积小与实时性的需求,适用于车载嵌入式系统中。 展开更多
关键词 目标检测 YOLOv5s 注意力机制 损失函数 车载红外图像
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Living Close to Buddha:Influence of Mandala on Around Xiba Temple
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作者 Sun Songlin Pang Xin +1 位作者 hua chengcai Yang Yuliang 《China City Planning Review》 CSCD 2022年第4期48-56,共9页
Through field investigation, field surveying and mapping, image analysis, and other methods, this paper discusses the spatial distribution and morphological characteristics of Tibetan settlements around Xiba Temple in... Through field investigation, field surveying and mapping, image analysis, and other methods, this paper discusses the spatial distribution and morphological characteristics of Tibetan settlements around Xiba Temple in two and three dimensions. It finds that under the influence of the spatial order culture of Buddhist “mandala,” Tibetan settlements in the surrounding area of Xiba Temple are characterized by centripetal, symmetrical, and vertical distribution. They are typical representatives of Tibetan settlements built around the temple in the mountain area. The results of this paper may provide a new idea for studying the spatial pattern and spatial structure of Tibetan temple settlements and their surrounding settlements.They can also be used to guide the spatial distribution pattern of Tibetan-inhabited villages under the background of religious culture, and guide the protection, planning, and construction of cultural landscapes in traditional Tibetan settlements. 展开更多
关键词 MANDALA Xiba Temple settlement space Tibetan settlements
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