Real-time phase boundary detection for colonoscopy videos using motion vector templates

Ruwan Nawarathna, Jung Hwan Oh, Jayantha Muthukudage, Wallapak Tavanapong, Johnny Wong, Piet C. De Groen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Colonoscopy is the preferred screening method currently available for detection of colorectal cancer and its precursor lesions, colorectal polyps. However, recent data suggest that there is a significant miss rate for the detection of polyps in the colon during colonoscopy. Therefore, techniques for real-time quality measurement and feedback are necessary to aid the endoscopist towards optimal inspection to improve the overall quality of colonoscopy during the procedure. A typical colonoscopy procedure consists of two phases: an insertion phase and a withdrawal phase. One of the most essential tasks in real-time fully automated quality measurement is to find the location of the boundary between insertion and withdrawal phases. In this paper, we present a method based on motion vector templates to detect the phase boundary in real-time. The proposed method detects the phase boundary with a better accuracy and a faster speed compared to our previous method.

Original languageEnglish (US)
Title of host publicationAbdominal Imaging
Subtitle of host publicationComputational and Clinical Applications - 4th International Workshop, Held in Conjunction with MICCAI 2012, Proceedings
Pages116-125
Number of pages10
DOIs
StatePublished - Nov 6 2012
Event4th International Workshop on Computational and Clinical Applications in Abdominal Imaging, Held in Conjunction with the 15th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2012 - Nice, France
Duration: Oct 1 2012Oct 1 2012

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7601 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

Other4th International Workshop on Computational and Clinical Applications in Abdominal Imaging, Held in Conjunction with the 15th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2012
CountryFrance
CityNice
Period10/1/1210/1/12

Keywords

  • Colonoscopy
  • camera motion estimation
  • end of insertion
  • motion vector templates
  • motion vectors
  • phase boundary

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  • Cite this

    Nawarathna, R., Oh, J. H., Muthukudage, J., Tavanapong, W., Wong, J., & De Groen, P. C. (2012). Real-time phase boundary detection for colonoscopy videos using motion vector templates. In Abdominal Imaging: Computational and Clinical Applications - 4th International Workshop, Held in Conjunction with MICCAI 2012, Proceedings (pp. 116-125). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 7601 LNCS). https://doi.org/10.1007/978-3-642-33612-6_13