Evaluation of Crowd Motion Direction Based on Wavelet Transform

Abstract:

Taking the wavelet decomposed approximate image as the main research object, a direction estimation method for moving object was proposed in this paper. Firstly, the approximate image for the frame of the video was obtained via wavelet decomposition; and furthermore, the motion estimation on the approximate image was achieved to obtain the motion vectors. Finally, the motion vectors were described as polar coordinate form to compute the number of motion vectors in specified angles and the information entropy of the motion directions. The experiment results show that the proposed method can remove the effect of noise and the results of direction estimation are consistent with the actual motion directions.

• Periodical: Advanced Materials Research (Volumes 846-847)
• Pages: 1106-1110
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.846-847.1106
• Online since: November 2013
• Authors: Guo Qing Yang*, Rong Yi Cui
• Keywords: Block Matching (BM), Information Entropy, Motion Estimation, Wavelet Transform (WT)

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