An iterative implicit B-spline fitting method, I-PIA, converges to the minimum-norm least-squares fit and empirically reconstructs curves and surfaces without spurious sheets.
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Implicit Progressive-Iterative Approximation for Curve and Surface Reconstruction
An iterative implicit B-spline fitting method, I-PIA, converges to the minimum-norm least-squares fit and empirically reconstructs curves and surfaces without spurious sheets.