计算机科学 ›› 2024, Vol. 51 ›› Issue (12): 190-198.doi: 10.11896/jsjkx.231100096
程梁华1,2, 黄瑞雪1,2, 沈鑫3
CHENG Lianghua1,2, HUANG Ruixue1,2, SHEN Xin3
摘要: 日益突出的停车矛盾导致城市道路违停现象严重,给城市交通带来巨大安全隐患。因此,及时有效地监测并处理违停事件对于保障城市交通安全至关重要。然而,现有基于人工巡检和固定摄像头的违停监测方式存在效率低、监测范围受限等缺点,难以满足大规模城市违停监管的需求。群车感知作为一种新兴感知范式,通过激励用户在行车过程中采集道路视频并上传至云端进行监测,能为大规模、低成本的城市违停监管提供重要手段。然而车载视频场景十分复杂,这导致了车辆追踪目标的高丢失性和违停判断的高复杂性,给实现精准违停检测提出了严峻挑战。为应对上述挑战,提出适于高动态视频场景下的城市道路违停检测算法。具体地,首先通过对车载视频进行多车辆目标追踪,以跨视频帧追踪获取车辆图像信息;然后通过动态视觉测距将目标车辆图像信息转换为真实场景中的相对距离变化,并结合车间相互运动实现违停判断;最后,基于重庆市道路数据集对所提算法进行性能评估。实验结果表明,所提算法的违停车辆检测精度为87.1%,相比3种对比算法平均提高21.9%,且在不同违停场景下均表现出优异检测性能。
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