TY - GEN
T1 - Automatic polyp detection from learned boundaries
AU - Tajbakhsh, Nima
AU - Chi, Changching
AU - Gurudu, Suryakanth R.
AU - Liang, Jianming
PY - 2014/7/29
Y1 - 2014/7/29
N2 - Colonoscopy is the primary method for detecting and removing polyps-precursors to colon cancer, but during colonoscopy, a significant number of polyps are missed-the pooled miss-rate for all polyps is 22% (95% CI, 19%-26%). This paper presents an automatic polyp detection system for colonoscopy, aiming to alert colonoscopists to possible polyps during the procedures. Given an input image, our method first collects a crude set of edge pixels, then refines this edge map by effectively removing many non-polyp boundary edges through a classification scheme, and finally localizes polyps based on the retained edges with a novel voting scheme. This paper makes three original contributions: (1) a fast and discriminative patch descriptor for precisely characterizing image appearance, (2) a new 2-stage classification pipeline for accurately excluding undesired edges, and (3) a novel voting scheme for robustly localizing polyps from fragmented edge maps. Evaluations demonstrate that our method outperforms the state-of-the-art.
AB - Colonoscopy is the primary method for detecting and removing polyps-precursors to colon cancer, but during colonoscopy, a significant number of polyps are missed-the pooled miss-rate for all polyps is 22% (95% CI, 19%-26%). This paper presents an automatic polyp detection system for colonoscopy, aiming to alert colonoscopists to possible polyps during the procedures. Given an input image, our method first collects a crude set of edge pixels, then refines this edge map by effectively removing many non-polyp boundary edges through a classification scheme, and finally localizes polyps based on the retained edges with a novel voting scheme. This paper makes three original contributions: (1) a fast and discriminative patch descriptor for precisely characterizing image appearance, (2) a new 2-stage classification pipeline for accurately excluding undesired edges, and (3) a novel voting scheme for robustly localizing polyps from fragmented edge maps. Evaluations demonstrate that our method outperforms the state-of-the-art.
UR - http://www.scopus.com/inward/record.url?scp=84927946589&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84927946589&partnerID=8YFLogxK
U2 - 10.1109/isbi.2014.6867818
DO - 10.1109/isbi.2014.6867818
M3 - Conference contribution
AN - SCOPUS:84927946589
T3 - 2014 IEEE 11th International Symposium on Biomedical Imaging, ISBI 2014
SP - 97
EP - 100
BT - 2014 IEEE 11th International Symposium on Biomedical Imaging, ISBI 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE 11th International Symposium on Biomedical Imaging, ISBI 2014
Y2 - 29 April 2014 through 2 May 2014
ER -