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Proceedings Paper

Image Acquisition And Storage For Ophthalmic Fluorescein Angiography
Author(s): J. L. Cambier; M. R. Nelson; S. I. Brown; M. H. Goldbaum; P. G. Rehkopf; J. L. Warnicki
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Paper Abstract

An ophthalmic imaging system, the IS-2000, has been developed for acquisition, archival storage, and analysis of fundus imagery collected during fluorescein angiography and other ophthalmic procedures. The system consists of a conventional fundus camera equipped with a video camera; a microcomputer with color video digitizer and frame buffer; and an optical video disk for archival storage of images. In the course of development of the IS-2000 a study was performed to assess the spatial frequency content of typical angiograms and to evaluate the resolution capabilities of a variety of types of commercially available video cameras and image storage media. The frequency content of angiograms was analyzed through the application of Fourier transforms to high-resolution digitized images. Modulation transfer functions (MTF) of various types of video cameras and video disks were measured with appropriate video test images. An assessment of the suitability of currently available video equipment for collection and storage of fluorescein angiograms is provided.

Paper Details

Date Published: 3 August 1984
PDF: 8 pages
Proc. SPIE 0515, Medical Images and Icons, (3 August 1984); doi: 10.1117/12.964762
Show Author Affiliations
J. L. Cambier, PAR Technology Corp. (United States)
M. R. Nelson, PAR Technology Corp. (United States)
S. I. Brown, University Hospital (United States)
M. H. Goldbaum, University Hospital (United States)
P. G. Rehkopf, Eye and Ear Hospital (United States)
J. L. Warnicki, Eye and Ear Hospital (United States)

Published in SPIE Proceedings Vol. 0515:
Medical Images and Icons
Andre J. Duerinckx; Murray H. Loew; Judith M. S. Prewitt, Editor(s)

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