Description of NBIPolyp-UCdb

· NBIPolyp-UCdb is a database containing 86 images that display colonic polyps.

It was generated from 11 different colonoscopy short videos, of 10 different patients, recorded with a Narrow-Band-Imaging (NBI) colonoscope, by medical endoscopists, from the Faculty of Medicine of the University of Coimbra, Portugal.

In addition to the NBI frames also the ground truth of the polyps is provided. This ground truth consists of a mask corresponding to the region covered by the polyp in the image.

· The images are RGB color images with 576x720 pixels (per color channel).

Description of the folders

· There are 11 folders, containing the images extracted from the 11 videos. Inside each folder there are 2 subfolders, named Polyp and Mask.

· The Polyp subfolder contains the original polyp frames, and the Mask subfolder the corresponding masks. A polyp image and the corresponding mask share the same name with the exception of an additional "M" in the mask image, e.g.,

Polyp image name: "Frame_217_1.WL.NBI.jpg"

Mask image name: "MFrame_217_1.WL.NBI.jpg"

Copyright

· Images and Masks are property of the University of Coimbra, Portugal.

· The use of this database is completely restricted for research and educational purposes. The use of this database is forbidden for commercial purposes.

Citation and Access to the database

If you use this database for your experiments please include the following reference:

· Isabel N. Figueiredo, Luis Pinto, Pedro N. Figueiredo, Richard Tsai : Unsupervised Segmentation of Colonic Polyps in Narrow-Band Imaging Data based on Manifold Representation of Images and Wasserstein Distance, Biomedical Signal Processing and Control, 53 (2019) 1015772019 (DOI: https://doi.org/10.1016/j.bspc.2019.101577 )

A form with personal information needs to be completed to download the NBIPolyp-UCdb database.

Download Form & NBIPolyp-UCdb database