Image Acquisition And Storage For Ophthalmic Fluorescein Angiography

J. L. Cambier; M. R. Nelson; S. I. Brown; M. H. Goldbaum; P. G. Rehkopf; J. L. Warnicki

doi:10.1117/12.964762

3 August 1984 Image Acquisition And Storage For Ophthalmic Fluorescein Angiography

J. L. Cambier, M. R. Nelson, S. I. Brown, M. H. Goldbaum, P. G. Rehkopf, J. L. Warnicki

Proceedings Volume 0515, Medical Images and Icons; (1984) https://doi.org/10.1117/12.964762
Event: Medical Images and Icons, 1984, Arlington, United States

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.

Citation Download Citation

J. L. Cambier, M. R. Nelson, S. I. Brown, M. H. Goldbaum, P. G. Rehkopf, and J. L. Warnicki "Image Acquisition And Storage For Ophthalmic Fluorescein Angiography", Proc. SPIE 0515, Medical Images and Icons, (3 August 1984); https://doi.org/10.1117/12.964762

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