2020

Audiovisual SlowFast Networks for Video Recognition

Xiao, Fanyi, Lee, Yong Jae, Grauman, Kristen et al.

Understand

We present Audiovisual SlowFast Networks, an architecture for integrated audiovisual perception.

  • AVSlowFast has Slow and Fast visual pathways that are deeply integrated with a Faster Audio pathway to model vision and sound in a unified representation.
  • We fuse audio and visual features at multiple layers, enabling audio to contribute to the formation of hierarchical audiovisual concepts.
  • To overcome training difficulties that arise from different learning dynamics for audio and visual modalities, we introduce DropPathway, which randomly drops the Audio pathway during training as an effective regularization technique.

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