Patent ID: 6529855
Filing Date: 2003-03-04
Classification: G06K

Abstract:
A method of identifying an item comprising the steps of:obtaining first data describing the item; reading a number of second data associated with a plurality of items from a library; determining a Distance Measure of Likeness value, Dj, between the first data and each of the second data, wherein the Distance Measure of Likeness value is defined by a first equation Dj=&Sum;i=1N&it;(xi-xtij)2dij2;wherein the Distance Measure of Likeness value, Dj, is a distance measure between an instance P(x1, x2, . . . , xN) in the first data and one class j of a total number nj of the classes; wherein the one class j is defined by a typical instance Ptj(xt1j, xt2j, . . . , xtNj) in N-dimensional space in the second data and corresponding distance scales dij defined by a second equation dij=&Sum;k=1nj&it;(xijk-xtik)2nj;determining third data and a corresponding item name from the second data which produces a smallest Distance Measure of Likeness value; and identifying the item to be the corresponding item.