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Optical Engineering

Key frame extraction based on spatiotemporal motion trajectory
Author(s): Yunzuo Zhang; Ran Tao; Feng Zhang
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Paper 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.

Paper Details

Date Published: 8 May 2015
PDF: 3 pages
Opt. Eng. 54(5) 050502 doi: 10.1117/1.OE.54.5.050502
Published in: Optical Engineering Volume 54, Issue 5
Show Author Affiliations
Yunzuo Zhang, Beijing Institute of Technology (China)
Ran Tao, Beijing Institute of Technology (China)
Feng Zhang, Beijing Institute of Technology (China)

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