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Estimating Motion in Ultrasound Images of the Small Bowel: Optical Flow without Image Structure

  • David H. Cooper
  • Bo René Madsen
  • Jim Graham
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2749)

Abstract

Measurement of motion in transabdominal ultrasound sequences of the small bowel is hampered by the unstructured, textured appearance of the images. We investigate a method of measuring Optical Flow in the sequences, based on an analysis of the spatio-temporal frequency spectrum. The method requires no unrealistic assumptions about the distribution of energy in the frequency spectrum and extends readily to deal with the aperture problem. Evaluation on synthetic image sequences indicates it has advantages in accuracy and precision of velocity estimates. Qualitative evaluation on real ultrasound sequences indicate encouraging performance, provided occurrence of the aperture problem is identified and appropriate processing applied.

Keywords

Local Search Optical Flow Ultrasound Image Synthetic Image Direct Search Method 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • David H. Cooper
    • 1
  • Bo René Madsen
    • 1
  • Jim Graham
    • 1
  1. 1.Imaging Science and Biomedical EngineeringUniversity of ManchesterManchesterUK

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