Patrick Waibel

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Fitting an ellipse to given data points is a common optimization task in computer vision problems. However, the possibility of incorporating the prior constraint “the ellipse’s center is located on a given line” into the optimization algorithm has not been examined so far. This problem arises, for example, by fitting an ellipse to data points representing(More)
OBJECTIVES This study reviews the long-term results of 514 aortoiliac thrombendarterectomies (TEA's). DESIGN A prospective study in a major university hospital in Switzerland. SUBJECTS 353 male and 62 female patients with aortoiliac occlusive disease. Operative indications: disabling claudication (n=334), rest pain (n=44), and gangrene (n=37). METHODS(More)