Using the Infocus-Breakpoint to estimate the scale of neoplasia in colonoscopy

Conference item

Chadebecq, F., Tilmant, C. and Bartoli, A. 2013. Using the Infocus-Breakpoint to estimate the scale of neoplasia in colonoscopy. 2013 IEEE 10th International Symposium on Biomedical Imaging. San Francisco, CA, USA 07 - 11 Apr 2013 IEEE. pp. 354-357 https://doi.org/10.1109/ISBI.2013.6556485
TitleUsing the Infocus-Breakpoint to estimate the scale of neoplasia in colonoscopy
AuthorsChadebecq, F., Tilmant, C. and Bartoli, A.
Abstract

Colonoscopy is the reference medical examination for early diagnosis and treatment of colonic diseases. This minimally invasive technique allows gastroenterologists to explore the colon and remove neoplasias - abnormal growth of tissue - such as polyps which may transform into malignant tumors. Shape, texture and size of polyps are of particular interest for determining their nature. However, the size of neoplasias is difficult to estimate because the absolute scale of the observed tissue is not directly conveyed in the 2D endoscopic images. We here improve our Infocus-Breakpoint (IB) technique, which estimates an imagewise scale by detecting the blur/ unblur breakpoint in a video sequence. We simultaneously track a neoplasia with a 2D affine transformation and estimate the amount of defocus blur. This leads to an areawise scale estimate with better accuracy.

KeywordsColonoscopy; Infocus-Breakpoint; Affine Registration; Neoplasia; Polyp
Conference2013 IEEE 10th International Symposium on Biomedical Imaging
Page range354-357
Proceedings Title2013 IEEE 10th International Symposium on Biomedical Imaging
ISSN1945-7928
Electronic1945-8452
ISBN
Electronic9781467364553
Hardcover9781467364560
PublisherIEEE
Publication dates
Print15 Jul 2013
Publication process dates
Accepted2013
Deposited28 Feb 2024
Output statusPublished
Digital Object Identifier (DOI)https://doi.org/10.1109/ISBI.2013.6556485
Web of Science identifierWOS:000326900100089
Web address (URL) of conference proceedingshttp://doi.org/10.1109/ISBI20048.2013
LanguageEnglish
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