The method comprises the steps of determining initially the structure of the code being read, to identify the number of rows and columns of the code; generating an ideal rectangular grid formed by rows and columns unambiguously defining the coordinates of notable points corresponding to the central point...http://www.google.es/patents/US6758399?utm_source=gb-gplus-sharePatente US6758399 - Distortion correction method in optical code reading
Distortion correction method in optical code reading
