提出一种对轨迹片段进行分析建立场景模型的方法.首先通过基于双向时空连续性的轨迹片段关联方法,找到属于同一目标的多个轨迹片段;再对目标轨迹形成轨迹片段的原因进行计算分析,得到包括入口、出口、主要路径以及场景内遮挡物信息的场景模型.通过实验证明了该方法可以有效地建立场景模型,并且场景模型可以提高跟踪效果和检测场景中目标的异常轨迹。
A surveillance scene modeling algorithm is proposed by tracklet analysis. A number of tracklets belonging to the same object are found through a bidirectional spatio-temporal continuity tracklet association method. The entry, exit, main path, and scene occluder of a scene model are obtained by analyzing the reason that object's track fall into tracklets. Experiments prove that the scene model can improve tracking result and detect abnormal object tracks.