计算机科学 ›› 2021, Vol. 48 ›› Issue (5): 163-169.doi: 10.11896/jsjkx.200800214
管文华, 林春雨, 杨尚蓉, 刘美琴, 赵耀
GUAN Wen-hua, LIN Chun-yu, YANG Shang-rong, LIU Mei-qin, ZHAO Yao
摘要: 近年来,随着智能手机的快速发展,低头族行人在过马路时依然保持浏览手机的姿态,由此造成的交通事故时有发生。如何有效检测低头族成为了当下亟待解决的问题。现有的检测方法需要大量的真实低头异常的数据集,且最终结果存在识别精度不高、速度不尽人意的问题。基于此,提出了一种快速有效的低头异常行人检测方法,与现有方法的区别在于该方法是基于关节点而不是图像。首先设计了一种构造数据集的方法,在识别人体关节点的基础上,调整左右腕关节坐标来模拟行人手持电子设备的姿态,解决了数据集缺少且需要大量标注的问题;其次,提出复杂环境中高效检测行人异常行为的算法,对上述关节点坐标进行分类识别,充分利用手臂与头部信息来实现行人异常行为检测。实验证明,所提算法能够实现实时检测,且检测精度达到了94.08%,从而可以为视频监控、驾驶员、辅助驾驶以及自动驾驶系统提供必要的参考信息。
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