Skip to main content
SpringerLink
Log in

Evaluation system for absolute brightness from the retinal vessels

  • Published:
Medical and Biological Engineering and Computing Aims and scope Submit manuscript

Abstract

The paper describes a method for the absolute evaluation of the luminance of a photographic image of the fundus, based on a comparison between this image and a referred grey scale. The absolute measurements of the luminance of the particular on the film are performed by a microprocessor-controlled microfilm reader. This new method can be applied in general studies regarding the fundus of the eye in particular for studying retinal diseases caused by hypertension and diabetes.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Bagolini, B. Fonda, S., Peduzzi, M., Barbaro, V., Sargentini, A. andNeroni, M. (1977) Dinamica del microcircolo retinico.Minerva Angiologica,2, (2).

  • Barbaro, V., Daniele, A., Fonda, S., Neroni, M. andPeduzzi, M. (1977) A system for recording and elaborating fluorescein dilution curves of retinal circulation. Atti del First Mediterranean Conference on Medical and Biological Engineering, Sorrento (Na) Italy, 12th–17th September.

  • Brown, E. B. (1965)Modern optics. Reinhold Publishing Corp., New York.

    Google Scholar 

  • Bullpitt, C. J. andDollery, C. T. (1971) Estimation of retinal blood flow by measurement of the mean circulation time.Cardiovasc. Res.,5, 406–412.

    Article  Google Scholar 

  • Riva, C. E., Robert, W. P., McMell, J. W. andBen-Sira, I. (1976) Arteriovenous mean circulation time in the human retina.Doc. Ophthal. Proc. ISFA,9, 113.

    Google Scholar 

  • Wratten light filters (1953) Kodak Ltd., London.

Download references

Author information

Authors and Affiliations

  1. Laboratory of Ingegneria Biomedica, Istituto Superiore di Sanità, Viale Regina Elena, 299, Roma, Italy

    C. Bosi, M. Neroni, P. Chistolini (Research worker appointed with a CNR forward contract) & R. Bedini (Guest research worker)

Authors
  1. C. Bosi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. Neroni
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. P. Chistolini
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. R. Bedini
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Bosi, C., Neroni, M., Chistolini, P. et al. Evaluation system for absolute brightness from the retinal vessels. Med. Biol. Eng. Comput. 21, 291–294 (1983). https://doi.org/10.1007/BF02478496

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02478496

Keywords

Search

Navigation