A background subtraction method based on decomposition of low-rank and structured sparsity matrices is proposed to solve the problem that detection results are sensitive to noise and incomplete caused by ignoring the relationship between foreground pixels in traditional foreground detection methods based on matrix decomposition. The method takes the structural distribution of the foreground into account
and a structured sparsity constraint is used on the foreground pixels. Moreover
a two-stage framework based on motion saliency is introduced to address the parameter setting issue in dynamic background videos and to tune regularization parameters adaptively. Motion block candidates are obtained by using the low rank and structured sparsity decomposition in the first step. Then
motion saliency analysis is applied to these candidates and the adapt block sparsity decomposition is used to detect the foreground in the second step. Experimental results show that the performance of the proposed method is more adaptive than the existing foreground detection methods based on matrix decomposition in complex videos
and that the proposed approach outperforms the state-of-the-art methods according to the precision and recall results on dataset I2R.
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