Patent ID: 6014199
Filing Date: 2000-01-11
Classification: G03B

Abstract:
A method of processing at least one section of material which carries a predetermined representation, said method comprising the steps of measuring a property of said one section, said one section being a member of a group which includes additional sections of material each carrying an additional representation; establishing at least one empirical distribution of said property over at least one part of said one section; and classifying said predetermined representation as to size by comparing said one empirical distribution with at least one predetermined distribution of said property derived from a source other than said one section and corresponding to a predetermined representation size; measuring said property for said additional sections; and establishing additional empirical distributions of said property over respective parts of said additional sections, all of said parts having substantially the same relative positions in the respective sections, and said classifying step including comparing said one empirical distribution with said additional empirical distributions.