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Journal of Electronic Imaging

Visualization of the 3-D topography of the optic nerve head through a passive stereo vision model
Author(s): Juan Manuel Ramirez; Sunanda Mitra; Jose Morales
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Paper 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 coarseto- 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.

Paper Details

Date Published: 1 January 1999
PDF: 6 pages
J. Electron. Imag. 8(1) doi: 10.1117/1.482687
Published in: Journal of Electronic Imaging Volume 8, Issue 1
Show Author Affiliations
Juan Manuel Ramirez, Universidad de las Americas (Mexico)
Sunanda Mitra, Texas Tech Univ. (United States)
Jose Morales, Texas Tech Univ. (United States)

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