Choice of finite differences in finding the goal function gradient in the estimation procedures of interframe image deformations

  • Authors:

  • A. G. Tashlinskii;A. M. Horeva

  • Affiliations:

  • Ulyanovsk State Technical University, Ulyanovsk, Russia 432027;Ulyanovsk State Technical University, Ulyanovsk, Russia 432027

  • Venue:
  • Pattern Recognition and Image Analysis
  • Year:
  • 2011

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Abstract

It is shown that, in the pseudogradient estimation algorithm of image parameters, the convergence rate of estimates depends on the method of pseudogradient calculations through the finite differences. An approach to optimize the step of finite differences on the parameters in the problem of estimating interframe geometrical image distortion is considered.