Variable Bandwidth QMDPE and Its Application in Robust Optical Flow Estimation

  • Authors:
  • Hanzi Wang;David Suter

  • Affiliations:
  • -;-

  • Venue:
  • ICCV '03 Proceedings of the Ninth IEEE International Conference on Computer Vision - Volume 2
  • Year:
  • 2003

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Abstract

Robust estimators, such as Least Median of Squared (LMedS)Residuals, M-estimators, the Least Trimmed Squares (LTS) etc., havebeen employed to estimate optical flow from image sequences inrecent years. However, these robust estimators have a breakdownpoint of no more than 50%. In this paper, we propose a novel robustestimator, called variable bandwidth Quick Maximum Density PowerEstimator (vbQMDPE),which can tolerate more than 50% outliers. Weapply the novel proposed estimator to robust optical flowestimation. Our method yields better results than most otherrecently proposed methods, and it has the potential to betterhandle multiple motion effects.