Three-dimensional digital mapping of the optic nerve head cupping in glaucoma

Sunanda Mitra, Manuel Ramirez, Jose Morales

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Visualization of the optic nerve head cupping is clinically achieved by stereoscopic viewing of a fundus image pair of the suspected eye. A novel algorithm for three-dimensional digital surface representation of the optic nerve head, using fusion of stereo depth map with a linearly stretched intensity image of a stereo fundus image pair, is presented. Prior to depth map acquisition, a number of preprocessing tasks including feature extraction, registration by cepstral analysis, and correction for intensity variations are performed. The depth map is obtained by using a coarse to fine strategy for obtaining disparities between corresponding areas. The required matching techniques to obtain the translational differences in every step, uses cepstral analysis and correlation-like scanning technique in the spatial domain for the finest details. The quantitative and precise representation of the optic nerve head surface topography following this algorithm is not computationally intensive and should provide more useful information than just qualitative stereoscopic viewing of the fundus as one of the diagnostic criteria for diagnosis of glaucoma.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages237-247
Number of pages11
ISBN (Print)0819407909
StatePublished - 1992
EventOphthalmic Technologies II - Los Angeles, CA, USA
Duration: Jan 19 1992Jan 21 1992

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1644
ISSN (Print)0277-786X

Conference

ConferenceOphthalmic Technologies II
CityLos Angeles, CA, USA
Period01/19/9201/21/92

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    Mitra, S., Ramirez, M., & Morales, J. (1992). Three-dimensional digital mapping of the optic nerve head cupping in glaucoma. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 237-247). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1644). Publ by Int Soc for Optical Engineering.