Table 1.

An overview of existing gastrointestinal (GI) lesion datasets including polyps: number of images or videos along with the availability type is provided.

Dataset	Findings	Size	Availability
Kvasir-SEG34	Polyps	1000 images†	open academic
HyperKvasir35	GI findings including polyps	110,079 images and 374 videos	open academic
Kvasir-Capsule36	GI findings including polyps◊	4,741,504 images	open academic
CVC-ColonDB37	Polyps	380 images† †	by request•
ETIS-Larib Polyp DB38	Polyps	196 images†	open academic
EDD202015,39	GI lesions including polyps	386 images	open academic
CVC-ClinicDB40	Polyps	612 images†	open academic
CVC-VideoClinicDB41	Polyps	11,954 images†	by request•
ASU-Mayo polyp database42	Polyps	18,781 images†	by request•
KID43	Angiectasia, bleeding, inflammations◊	2371 images, 47 videos	open academic•
Atlas of GI Endoscope13	GI lesions	1295 images	unknown•
El salvador atlas12	GI lesions	5071 video clips	open academic♣
PolypGen (Ours)18,44	Multi-centre colon polyps	1537 images† & 2225 video sequence	open academic

^†Including ground truth segmentation masks ^‡Contour ^◊Video capsule endoscopy ^•Not available anymore.

^♣Medical atlas for education with several low-quality samples of various GI findings.