视频与GIS协同的交通违规行为分析方法

A Violation Analysis Method of Traffic Targets Based on Video and GIS

  • 摘要: 针对人工监测无法及时、高效地发现视频中车辆和行人违规情况的不足,构建了地理空间视角下,兼顾动态目标在地理场景下的属性、时空关系和语义信息的轨迹模型(trajectory model,Tra-Model),设计了视频与GIS协同的交通违规行为分析方法,基于轨迹与规则几何约束条件对目标逆行、压线、禁止进入3类违规情况进行实时检测。以某高校为实验场地,分析不同交通场景下目标的3类违规情况。实验结果表明:(1)Tra-Model模型提取的轨迹包含目标类型、轨迹序列等语义信息, 相比于现有动态目标跟踪算法, 精准率提高15.6%;(2)所提方法对多个摄像机序列违规分析准确率均在70%以上,相对于现有方法具有更好的性能;(3)实现了地理场景下多种交通违规行为综合分析的全局性、高精度和探测类型多样性。

     

    Abstract:
      Objectives  Previous research on intelligent video analysis methods were unable to detect the violation of vehicles and pedestrians in the video timely and efficiently.
      Methods  We propose an improved trajectory model (Tra-Model) from the geospatial view, which takes into account the attributes, spatiotemporal relationship and semantic information of dynamic objects in the geographical scene. In particular, we design a traffic violation behavior analysis method based on the rules of trajectory and geometric constraints. Our proposed method can detect three kinds of traffic violations in real time, including retrograde, violation of prohibited marking instructions and no entry. Taking a university as experimental site, we analyze the three types of violations of targets in different traffic scenarios.
      Results  The experimental results show that: (1) Compared with the existing dynamic target tracking algorithm, the accuracy is improved by 15.6%, and the extracted trajectory contains rich semantic information such as target type and trajectory sequence. (2) The accuracy of our proposed method for the violations analysis from multiple camera sequences is above 70%, which is better than other methods.
      Conclusions  The proposed method achieves global comprehensiveness, high precision and diversity of detection types for the analysis of various traffic violations in geographical scenarios.

     

/

返回文章
返回