Robust Bias Corrected Least Squares Fitting of Ellipses
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Fitting Ellipses and Predicting Confidence Envelopes using a Bias Corrected Kalman Filter
We describe the use of the Kalman filter to find optimal fits to short sections of ellipse data and to predict confidence envelopes in order to facilitate search for further ellipse data. The extended Kalman filter in its usual form is shown not to reduce the well known bias to high curvature involved in least squares ellipse fitting. This problem is overcome by developing a linear bias correct...
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تاریخ انتشار 2000