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Multi-Target Multi-Camera Tracking by Tracklet-to-Target Assignment

He, Yuhang ; Wei, Xing ; Hong, Xiaopeng ; Shi, Weiwei ; Gong, Yihong

IEEE transactions on image processing, 2020, Vol.29, p.5191-5205 [Periódico revisado por pares]

New York: IEEE

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  • Título:
    Multi-Target Multi-Camera Tracking by Tracklet-to-Target Assignment
  • Autor: He, Yuhang ; Wei, Xing ; Hong, Xiaopeng ; Shi, Weiwei ; Gong, Yihong
  • Assuntos: Ablation ; Algorithms ; Cameras ; Matching ; Multi-camera racking ; multi-target tracking ; Multiple target tracking ; non-negative matrix factorization ; Tracking ; Tracking errors ; tracklet association
  • É parte de: IEEE transactions on image processing, 2020, Vol.29, p.5191-5205
  • Descrição: This paper focuses on the Multi-Target Multi-Camera Tracking task (MTMCT), which aims at tracking multiple targets within a multi-camera network. As the trajectory of each target is inherently split into multiple sub-trajectories (namely local tracklets) in a multi-camera network, a major challenge of MTMCT is how to accurately match the local tracklets generated within each camera across different cameras and generate a complete global trajectory for each target, i.e. , the cross-camera tracklet matching problem. We solve the cross-camera tracklet matching problem by TRACklet-to-Target Assignment (TRACTA), and propose the Restricted Non-negative Matrix Factorization (RNMF) algorithm to compute the optimal assignment solution that meets a set of constraints, which should be in force in practice. TRACTA can correct the tracking errors caused by occlusions and missed detections in local tracklets, and produce a complete global trajectory for each target across all the cameras. Moreover, we also develop an analytical way of estimating the total number of targets in the camera network, which plays an important role to compute the tracklet-to-target assignment. Experimental evaluations and ablation studies on four MTMCT benchmark datasets show the superiority of the proposed TRACTA method.
  • Editor: New York: IEEE
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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