Poster ACM Multimedia 2013
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Transcript of Poster ACM Multimedia 2013
1. Fisher Kernel Theory
Time Matters!Capturing Variation in Time in Video using Fisher
KernelsIonuț Mironică, Jasper Uijlings, Bogdan Ionescu, Negar Rostamzadeh, Nicu Sebe
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LAPI – University „POLITEHNICA” Bucharest, 061071, RomaniaMHUG DISI – University of Trento, Italy
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Variation in distance to clusters center
Variation in distance to cluster centre
represents a signal as the gradient of the probability density function that is a learned generative model of that signal
combines the benefits of generative and discriminative approaches
Temporal order is lost
but
subtle variations in timewithin a cluster
drastic variations in timeby different clusters
2. Fisher Kernel Framework
3. Experimental Results
Conclusion: State-of-the-art results or better using cheaper features!
MediaEval 2012 dataset- Genre Retrieval ADL dataset - Daily Activities UCF dataset – Sport Recognition