Real-time algorithm for retinal tracking
- 1 January 1993
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Biomedical Engineering
- Vol. 40 (12) , 1269-1281
- https://doi.org/10.1109/10.250583
Abstract
Conventional retinal laser photocoagulation is presently performed by an ophthalmologist manually aiming a low-power laser beam at a desired site and firing a high-power laser for a preselected interval of time. To automate this process a retinal tracker must acquire a target, track small saccades, and identify loss of track during a large saccade. The authors successfully implemented a real-time algorithm that used a simple computer, video digitizing card, low light video camera, and fundus camera to perform rudimentary tracking on a photograph of a retina undergoing smooth circular motion. The algorithm tracked speeds up to 5 Hz, or 27 degrees/s, which equated to the retina moving in a 525 microns diameter circle.Keywords
This publication has 13 references indexed in Scilit:
- The change in light reflection of the retina during therapeutic laser photocoagulationIEEE Journal of Quantum Electronics, 1984
- Matching Images to Models for Registration and Object Detection via ClusteringPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1982
- Accurate three-dimensional eyetrackerApplied Optics, 1978
- Digital Image Registration Method Using Boundary MapsIEEE Transactions on Computers, 1975
- The “rubber-mask” technique-II. Pattern storage and recognitionPattern Recognition, 1973
- Accurate two-dimensional eye tracker using first and fourth Purkinje imagesJournal of the Optical Society of America, 1973
- The Representation and Matching of Pictorial StructuresIEEE Transactions on Computers, 1973
- A Class of Algorithms for Fast Digital Image RegistrationIEEE Transactions on Computers, 1972
- Ordered search techniques in template matchingProceedings of the IEEE, 1972
- Servo-Controlled Infrared Optometer*Journal of the Optical Society of America, 1970