A new approach for detecting the position of retinal vessels and calculating their diameter on the basis of dynamic spectral analysis.
Fast adaptive algorithms were used for the detection of retinal vessels and for pre-processing the signals. By using different methods of dynamic spectral analysis, the local frequency of the vessels was determined. On this basis a method of calculating the diameters of the vessels was constructed; it is robust in relation to disturbances in the domain of the edges.
Schack
B
B
Institute for Medical Statistics, Computer Sciences and Documentation, University Jena, Jahnstr. 3, D-07740 Jena.
Vilser
W
W
Putsche
P
P
Bräuer-Burchardt
C
C
Bareshova
E
E
Witte
H
H
D000465:Algorithms; D006801:Humans; D008833:Microcirculation; D008955:Models, Cardiovascular; D012171:Retinal Vessels / Q000033:anatomy & histology*; D012815:Signal Processing, Computer-Assisted