8 May 2015 Key frame extraction based on spatiotemporal motion trajectory
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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.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Yunzuo Zhang, Yunzuo Zhang, Ran Tao, Ran Tao, Feng Zhang, 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 . Submission:


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