A weighted fit based on a sample density of a plurality of samples is used to determine an alignment curve. A scan that produces the samples may include portions having greater and lesser sample density. While performing an interpolation to produce a best fit curve, a plurality of neighboring samples...http://www.google.es/patents/US7583359?utm_source=gb-gplus-sharePatente US7583359 - Reduction of fit error due to non-uniform sample distribution
Reduction of fit error due to non-uniform sample distribution
