Key frame extraction based on spatiotemporal motion trajectory

Yunzuo Zhang; Ran Tao; Feng Zhang

doi:10.1117/1.OE.54.5.050502

8 May 2015 Key frame extraction based on spatiotemporal motion trajectory

Yunzuo Zhang, Ran Tao, Feng Zhang

Author Affiliations +

Optical Engineering, Vol. 54, Issue 5, 050502 (May 2015). https://doi.org/10.1117/1.OE.54.5.050502

Abstract

Spatiotemporal motion trajectory can accurately reflect the changes of motion state. Motivated by this observation, this letter proposes a method for key frame extraction based on motion trajectory on the spatiotemporal slice. Different from the well-known motion related methods, the proposed method utilizes the inflexions of the motion trajectory on the spatiotemporal slice of all the moving objects. Experimental results show that although a similar performance is achieved in the single-objective screen, by comparing the proposed method to that achieved with the state-of-the-art methods based on motion energy or acceleration, the proposed method shows a better performance in a multiobjective video.

Citation Download Citation

Yunzuo Zhang, Ran Tao, and Feng Zhang "Key frame extraction based on spatiotemporal motion trajectory," Optical Engineering 54(5), 050502 (8 May 2015). https://doi.org/10.1117/1.OE.54.5.050502

Published: 8 May 2015

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