Separable Flow: Learning Motion Cost Volumes for Optical Flow Estimation
      Feihu Zhang      Oliver J. Woodford    Victor Prisacariu                           Philip H.S. Torr
                         University of Oxford


             Abstract
  Full-motion cost volumes play a central role in current
state-of-the-art optical flow methods. However, constructed
using simple feature correlations, they lack the ability to en-
capsulate prior, or even non-local knowledge. This creates
artifa ...