Title
Local Quality Assessment For Optical Coherence Tomography
Abstract
Optical Coherence Tomography (OCT) is a non-invasive tool for visualizing the retina. It is increasingly used to diagnose eye diseases such as glaucoma and diabetic maculopathy. However, diagnosis is only possible when the layers of the retina can be easily distinguished, which is when the images are evenly illuminated. Automated OCT quality assessment (i.e. signal strength) is only available for images as a whole. In this work, we present an automated method for local quality assessment. For training data, three OCT experts label the quality of each individual a-scan line in 270 OCT images. We extract features that are insensitive to pathology, and employ a hierarchy of support vector machines and histogram-based metrics. Our trained classifier is able to determine not only when signal strength is low, but also when it will affect doctors' diagnostic ability. Our results improve over the state of the art in OCT quality assessment.
Year
DOI
Venue
2008
10.1109/ISBI.2008.4541015
2008 IEEE INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING: FROM NANO TO MACRO, VOLS 1-4
Keywords
Field
DocType
image quality assessment, optical coherence tomography
Computer vision,Glaucoma,Optical coherence tomography,Pattern recognition,Computer science,Visualization,Support vector machine,Tomography,Feature extraction,Artificial intelligence,Optical tomography,Classifier (linguistics)
Conference
ISSN
Citations 
PageRank 
1945-7928
2
0.44
References 
Authors
0
5
Name
Order
Citations
PageRank
Peter Barnum1101.35
Mei Chen220.44
ishikawa351530.86
Gadi Wollstein4576.02
Joel S Schuman5638.75