挖掘基于改进的YOLOx的双轮非机动车辆的微轨迹
Dan Zhou1,2,3, Zhenzhong Zhao1, Ruixin Yang1
1School of Architecture and Transportation Engineering, Guilin University of Electronic Technology, Guilin 541004, China.
Sensors (Basel, Switzerland)
|February 10, 2024
概括
这项研究引入了一种增强的You Only Look Once Version X (YOLOx) 模型,其中有一个中位积聚-卷积块注意力机制 (M-CBAM),用于精确跟踪两轮非机动车辆 (TNV) 的轨迹. 该框架实现了85%的轨迹回忆率,改善了交通安全分析.
科学领域:
- 计算机视觉和机器学习
- 运输工程 运输工程
- 交通安全 交通安全 交通安全
背景情况:
- 两轮非机动车辆 (TNV) 在欠发达的城市普遍存在,由于其具有挑战性的轨迹获得,造成交通安全风险.
- 现有的方法与TNV的高机动性和小尺寸作斗争,阻碍了准确的运动模式分析.
- 了解TNV行为对于制定有效的交通安全策略至关重要.
研究的目的:
- 开发一个增强的你只看一次版本X (YOLOx) 模型,用于准确检测和跟踪TNVs.
- 用先进的计算机视觉技术为TNV创建一个微轨迹数据挖掘框架.
- 提高TNV获得轨迹数据的精度,以帮助交通安全研究.
主要方法:
- 提出了一种增强的YOLOx模型,其中包括一个中位积聚-卷积块注意力机制 (M-CBAM),以改进特征提取.
- 在YOLOx中集成了额外的检测头,以加强对TNV等小规模目标的检测.
- 利用深度排序算法进行精确的车辆跟踪,并使用视频稳定,坐标映射和过来重建轨迹.
主要成果:
- 改进的YOLOx模型在定制的空中数据集上展示了与类似方法相比更高的检测性能.
- 开发的微轨迹数据挖掘框架在三个测试视频中实现了85%的平均轨迹回忆率.
- 该研究成功地建立了一种可靠的方法来获取高精度的TNV轨迹数据.
结论:
- 增强的YOLOx模型与M-CBAM有效地解决了TNV检测和轨迹跟踪的挑战.
- 微轨迹数据挖掘框架为分析TNV移动模式提供了强大的解决方案.
- 这项研究提供了有价值的见解和工具,以提高涉及TNV的混合道路上的交通安全.
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