SPECIAL SECTION ON BIOMEDICAL IMAGE REPRESENTATION

Visualization of the three-dimensional topography of the optic nerve head through a passive stereo vision model

[+] Author Affiliations
Juan Manuel Ramirez

Universidad de las Ame´ricas, Department of Electrical Engineering, Cholula Puebla?72820, Mexico

Sunanda Mitra

Texas Tech University, Department of Electrical Engineering, Computer Vision and Image Analysis Laboratory, Lubbock, Texas 79400

Jose Morales

Texas Tech University Health Sciences Center, Department of Ophthalmology and Visual Sciences, Lubbock, Texas 79409

J. Electron. Imaging. 8(1), 92-97 (Jan 01, 1999). doi:10.1117/1.482687
History: Received Aug. 3, 1998; Accepted Sept. 17, 1998
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Abstract

This paper describes a system for surface recovery and visualization of the three-dimensional topography of the optic nerve head, as support of early diagnosis and follow up of glaucoma. In stereo vision, depth information is obtained from triangulation of corresponding points in a pair of stereo images. In this paper, the use of the cepstrum transformation as a disparity measurement technique between corresponding windows of different block sizes is described. This measurement process is embedded within a coarse-to-fine depth-from-stereo algorithm, providing an initial range map with the depth information encoded as gray levels. These sparse depth data are processed through a cubic B-spline interpolation technique in order to obtain a smoother representation. This methodology is being especially refined to be used with medical images for clinical evaluation of some eye diseases such as open angle glaucoma, and is currently under testing for clinical evaluation and analysis of reproducibility and accuracy. © 1999 SPIE and IS&T.

© 1999 SPIE and IS&T

Citation

Juan Manuel Ramirez ; Sunanda Mitra and Jose Morales
"Visualization of the three-dimensional topography of the optic nerve head through a passive stereo vision model", J. Electron. Imaging. 8(1), 92-97 (Jan 01, 1999). ; http://dx.doi.org/10.1117/1.482687


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