Document Type
Conference Paper
Publication Date
2006
DOI
10.1117/12.652724
Publication Title
Medical Imaging 2006: Image Processing, Proceedings of SPIE Volume 6144
Volume
6144
Pages
61445A (1-9)
Conference Name
Medical Imaging 2006: Image Processing, February 11-16, 2006, San Diego, California
Abstract
We present a hybrid committee classifier for computer-aided detection (CAD) of colonic polyps in CT colonography (CTC). The classifier involved an ensemble of support vector machines (SVM) and neural networks (NN) for classification, a progressive search algorithm for selecting a set of features used by the SVMs and a floating search algorithm for selecting features used by the NNs. A total of 102 quantitative features were calculated for each polyp candidate found by a prototype CAD system. 3 features were selected for each of 7 SVM classifiers which were then combined to form a committee of SVMs classifier. Similarly, features (numbers varied from 10-20) were selected for 11 NN classifiers which were again combined to form a NN committee classifier. Finally, a hybrid committee classifier was defined by combining the outputs of both the SVM and NN committees. The method was tested on CTC scans (supine and prone views) of 29 patients, in terms of the partial area under a free response receiving operation characteristic (FROC) curve (AUC). Our results showed that the hybrid committee classifier performed the best for the prone scans and was comparable to other classifiers for the supine scans.
Rights
Copyright 2006 Society of Photo‑Optical Instrumentation Engineers (SPIE).
One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.
Original Publication Citation
Li, J., Yao, J., Petrick, N., Summers, R. M., & Hara, A. K. (2006) Hybrid committee classifier for a computerized colonic polyp detection system. In J.M. Reinhardt & Josien P.W. Pluim (Eds.), Medical Imaging 2006: Image Processing, Proceedings of SPIE Volume 6144 (61445A). SPIE. https://doi.org/10.1117/12.652724
Repository Citation
Li, Jiang; Yao, Jianhua; Petrick, Nicholas; Summers, Ronald M.; Hara, Amy K.; Reinhardt, Joseph M. (Ed.); and Pluim, Josien P.W. (Ed.), "Hybrid Committee Classifier for a Computerized Colonic Polyp Detection System" (2006). Electrical & Computer Engineering Faculty Publications. 385.
https://digitalcommons.odu.edu/ece_fac_pubs/385
ORCID
0000-0003-0091-6986 (Li)
Included in
Artificial Intelligence and Robotics Commons, Biomedical Commons, Digestive System Commons, Investigative Techniques Commons, Theory and Algorithms Commons