Title :
Fitting of ellipses from support function measurements
Author_Institution :
Dept. of Electr. Eng., Ecole de Technol. Superieure, Montreal, Que., Canada
Abstract :
Three new methods for fitting ellipses to regions are presented. They are based on the measurements of the support function of the region. The fitted ellipse is the one that: (1) minimizes the support function error, (2) circumscribes the region or (3) is inscribed in the region. These methods have the advantage of fitting an ellipse to a region without the need of the contour. They can be used on incomplete ellipses. Results are presented on simulated data and a real nuclear medicine image of the myocardium
Keywords :
cardiology; curve fitting; medical image processing; single photon emission computed tomography; SPECT image; circumscribed ellipse; ellipse fitting; ellipse representation; image data; incomplete ellipses; inscribed ellipse; myocardium; nuclear medicine image; simulated data; support function error minimization; support function measurements; Computational modeling; Computer vision; Curve fitting; Electric variables measurement; Equations; Medical simulation; Myocardium; Nuclear medicine; Parameter estimation; US Department of Transportation;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-6293-4
DOI :
10.1109/ICASSP.2000.859298
