Title :
A method of vessel tracking for vessel diameter measurement on retinal images
Author :
Gao, Xiaohong ; Bharath, Anil ; Stanton, Alice ; Hughes, Alun ; Chapman, Neil ; Thom, Simon
Author_Institution :
Dept. of Clinical Pharmacology, Imperial Coll. Sch. of Medicine, London, UK
Abstract :
A method of vessel tracking has been developed for quantification of vessel diameters of retinal images. This method utilises twin Gaussian functions to model the distribution of grey level over a vessel cross section. The diameter of the vessel at the cross section can then be calculated using the functions. The variation of vessel diameter in the direction of vessel longitude axis has been described by a tracking technique based on parameters of modelled intensity distribution curves over every cross section. This enables us to obtain an average diameter over any length of a vessel and to develop more parameters for diagnosis and study of vascular diseases
Keywords :
Gaussian distribution; diameter measurement; diseases; eye; medical image processing; tracking; Gaussian functions; diagnosis; grey level distribution; image analysis; intensity distribution curves; retinal images; vascular diseases; vessel cross section; vessel diameter measurement; vessel tracking; Biology; Biomedical imaging; Blood; Diseases; Displays; Educational institutions; Geometry; Medical diagnostic imaging; Retina; Retinal vessels;
Conference_Titel :
Image Processing, 2001. Proceedings. 2001 International Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
0-7803-6725-1
DOI :
10.1109/ICIP.2001.958635
