2020

RAFT: Recurrent All-Pairs Field Transforms for Optical Flow

Teed, Zachary, Deng, Jia

Understand

We introduce Recurrent All-Pairs Field Transforms (RAFT), a new deep network architecture for optical flow.

  • RAFT extracts per-pixel features, builds multi-scale 4D correlation volumes for all pairs of pixels, and iteratively updates a flow field through a recurrent unit that performs lookups on the correlation volumes.
  • RAFT achieves state-of-the-art performance.
  • On KITTI, RAFT achieves an F1-all error of 5.10%, a 16% error reduction from the best published result (6.10%).

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