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Improving the Quality of Color Colonoscopy Videos


Colonoscopy is currently one of the best methods to detect colorectal cancer. Nowadays, one of the widely used colonoscopes has a monochrome chipset recording successively at 60 Hz and components merged into one color video stream. Misalignments of the channels occur each time the camera moves, and this artefact impedes both online visual inspection by doctors and offline computer analysis of the image data. We propose to restore this artefact by first equalizing the color channels and then performing a robust camera motion estimation and compensation.

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Correspondence to Rozenn Dahyot.

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Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Dahyot, R., Vilariño, F. & Lacey, G. Improving the Quality of Color Colonoscopy Videos. J Image Video Proc 2008, 139429 (2008).

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