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Accuracy Estimation for Medical Image Registration Using Regression Forests

  • Hessam Sokooti
  • Gorkem Saygili
  • Ben Glocker
  • Boudewijn P. F. Lelieveldt
  • Marius Staring
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9902)

Abstract

This paper reports a new automatic algorithm to estimate the misregistration in a quantitative manner. A random regression forest is constructed, predicting the local registration error. The forest is built using local and modality independent features related to the registration precision, the transformation model and intensity-based similarity after registration. The forest is trained and tested using manually annotated corresponding points between pairs of chest CT scans. The results show that the mean absolute error of regression is 0.72 ± 0.96 mm and the accuracy of classification in three classes (correct, poor and wrong registration) is 93.4 %, comparing favorably to a competing method. In conclusion, a method was proposed that for the first time shows the feasibility of automatic registration assessment by means of regression, and promising results were obtained.

Keywords

Image registration Registration accuracy Uncertainty estimation Regression forests 

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Copyright information

© Springer International Publishing AG 2016

Authors and Affiliations

  • Hessam Sokooti
    • 1
  • Gorkem Saygili
    • 1
  • Ben Glocker
    • 2
  • Boudewijn P. F. Lelieveldt
    • 1
    • 3
  • Marius Staring
    • 1
    • 3
  1. 1.Leiden University Medical CenterLeidenThe Netherlands
  2. 2.Imperial CollegeLondonUK
  3. 3.Delft University of TechnologyDelftThe Netherlands

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