Enhancing Informative Frame Filtering by Water and Bubble Detection in Colonoscopy Videos

Date
2015-07-01
Authors
Tavanapong, Wallapak
Dahal, Ashok
Oh, JungHwan
Tavanapong, Wallapak
Wong, Johnny
Wong, Johnny
de Groen, Piet
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Altmetrics
Authors
Research Projects
Organizational Units
Computer Science
Organizational Unit
Journal Issue
Series
Department
Computer Science
Abstract

Colonoscopy has contributed to a marked decline in the number of colorectal cancer related deaths. However, recent data suggest that there is a significant (4-12%) miss-rate for the detection of even large polyps and cancers. To address this, we have been investigating an ‘automated feedback system’ which informs the endoscopist of possible sub-optimal inspection during colonoscopy. A fundamental step of this system is to distinguish non-informative frames from informative ones. Existing methods for this cannot classify water/bubble frames as non-informative even though they do not carry any useful visual information of the colon mucosa. In this paper, we propose a novel texture feature based on accumulation of pixel differences, which can detect water and bubble frames with very high accuracy with significantly less processing time. The experimental results show the proposed feature can achieve more than 93% overall accuracy in almost half of the processing time the existing methods take.

Comments

This article is from WorldComp 2015 International Conference Health Informatics and Medical Systems | HIMS'15 : pp. 24-30. Posted with permission.

Description
Keywords
Citation
DOI
Source