arXiv:1812.03982cs.CV
SlowFast Networks for Video Recognition
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Abstract
We present SlowFast networks for video recognition. Our model involves (i) a Slow pathway, operating at low frame rate, to capture spatial semantics, and (ii) a Fast pathway, operating at high frame rate, to capture motion at fine temporal resolution. The Fast pathway can be made very lightweight by reducing its channel capacity, yet can learn useful temporal information for video recognition. Our models achieve strong performance for both action classification and detection in video, and large improvements are pin-pointed as contributions by our SlowFast concept. We report state-of-the-art accuracy on major video recognition benchmarks, Kinetics, Charades and AVA. Code has been made available at: https://github.com/facebookresearch/SlowFast
I believe the paper SlowFast Networks for Video Recognition goes somewhat in that direction. The architecture is split into a fast pathway, to capture motion information, and a slow pathway that captures spatial semantics. https://arxiv.org/pdf/1812.03982.pdf
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