Computer Science ›› 2014, Vol. 41 ›› Issue (10): 300-305.doi: 10.11896/j.issn.1002-137X.2014.10.063

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Abnormal Event Detection Using Linear Dynamical System Combined with Sparse Coding

LIU Yang and LI Yi-bo   

  • Online:2018-11-14 Published:2018-11-14

Abstract: Linear dynamical system model combined with sparse coding is used to achieve abnormal event detection.Linear Dynamical System(LDS) as a description for dynamic texture can capture the transition of appearance and motion effectively.LDS is applied to describe spatio-temporal cuboids.Since LDS does not belong to Euclidean space,traditional sparse coding techniques can not be applied.Similarity transformation combined with sparse coding based on a principled convex optimization formulation can deal with the optimization of spare coding.The results show that the proposed algorithm has better performance and outperforms the earlier approaches.

Key words: Sparse coding,Abnormal event detection,Linear dynamical system,Similarity transformation

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