Crowd Behavior Analysis via Curl and Divergence of Motion Trajectories
作者: Shuang WuHua YangShibao ZhengHang SuYawen FanMing-Hsuan Yang
作者单位: 1Shanghai Jiao Tong University
2Tsinghua University
3Nanjing University of Posts and Telecommunications
4University of California at Merced
刊名: International Journal of Computer Vision, 2017, Vol.123 (3), pp.499-519
来源数据库: Springer Nature Journal
DOI: 10.1007/s11263-017-1005-y
关键词: Crowd behavior analysisCurlDivergenceMotion trajectoriesMotion codingPath integration
英文摘要: In the field of crowd behavior analysis, existing methods mainly focus on using local representations inspired by models found in other disciplines (e.g., fluid dynamics and social dynamics) to describe motion patterns. However, less attention is paid to exploiting motion structures (e.g., visual information contained in trajectories) for behavior analysis. In this paper, we consider both local characteristics and global structures of a motion vector field, and propose the Curl and Divergence of motion Trajectories (CDT) descriptors to describe collective motion patterns. To this end, a trajectory-based motion coding algorithm is designed to extract the CDT descriptors. For each motion vector field we construct its conjugate field, in which each vector is perpendicular to the counterpart...
原始语种摘要: In the field of crowd behavior analysis, existing methods mainly focus on using local representations inspired by models found in other disciplines (e.g., fluid dynamics and social dynamics) to describe motion patterns. However, less attention is paid to exploiting motion structures (e.g., visual information contained in trajectories) for behavior analysis. In this paper, we consider both local characteristics and global structures of a motion vector field, and propose the Curl and Divergence of motion Trajectories (CDT) descriptors to describe collective motion patterns. To this end, a trajectory-based motion coding algorithm is designed to extract the CDT descriptors. For each motion vector field we construct its conjugate field, in which each vector is perpendicular to the counterpart...
全文获取路径: Springer Nature  (合作)
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来源刊物:
影响因子:3.623 (2012)

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关键词翻译
关键词翻译
  • motion 运动
  • coding 编码
  • integration 集成
  • invariant 不变量
  • effectiveness 有效性
  • clockwise 顺时针方向的
  • bottleneck 瓶颈
  • rotation 旋转
  • propose 提议
  • describe 叙述