A. Taki, O. Pauly, S.K. Setarehdan, G. Unal, N. Navab
IVUS-based histology of atherosclerotic plaques: improving longitudinal resolution SPIE Medical Imaging, San Diego, California, USA, 13-18 February 2010 (bib) |
||
Although Virtual Histology is used for atherosclerosis plaque characterization in IVUS images, it suffers from a poor longitudinal resolution due to ECG-gating. By using Redundant Wavelet Packet Transform, IVUS images are decomposed in multiple sub-band images. Run-length features are extracted from the neighborhood centered on each pixel. To provide the best discrimination power according to these features, relevant sub-bands are selected by using Local Discriminant Bases algorithm. SVM classifier is used for the classification of the extracted feature vectors into three tissue classes. Results show our approach with an overall accuracy of 72% in comparison to Local Binary Pattern and Co-occurrence. Although Virtual Histology is used for atherosclerosis plaque characterization in IVUS images, it suffers from a poor longitudinal resolution due to ECG-gating. By using Redundant Wavelet Packet Transform, IVUS images are decomposed in multiple sub-band images. Run-length features are extracted from the neighborhood centered on each pixel. To provide the best discrimination power according to these features, relevant sub-bands are selected by using Local Discriminant Bases algorithm. SVM classifier is used for the classification of the extracted feature vectors into three tissue classes. Results show our approach with an overall accuracy of 72% in comparison to Local Binary Pattern and Co-occurrence. | ||
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each authors copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. |