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Approximate Regularization for Structural Optical Flow Estimation

  • Aless Lasaruk
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7517)

Abstract

We address the problem of maximum a posteriori (MAP) estimation of optical flow with a geometric prior from gray-value images. We estimate simultaneously the optical flow and the corresponding surface – the structural optical flow (SOF) – subject to three types of constraints: intensity constancy, geometric, and smoothness constraints. Our smoothness constraints restrict the unknowns to locally coincide with a set of finitely parameterized admissible functions. The geometric constraints locally enforce consistency between the optical flow and the corresponding surface. Our theory amounts to a discrete generalization of regularization defined in terms of partial derivatives. The point-wise regularizers are efficiently implemented with linear run-time complexity in the number of discretization points. We demonstrate the applicability of our method by example computations of SOF from photographs of human faces.

Keywords

Optical flow Approximation theory Bayesian model 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Aless Lasaruk
    • 1
  1. 1.FORWISSUniversität PassauPassauGermany

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