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کامپیوتر و شبکه::
الگوی نرمالشده
The normalised pattern was created by backtracking to find the Cartesian coordinates of data points from the radial and angular position in the normalised pattern.
Note that rotational inconsistencies have not been accounted for by the normalisation process, and the two normalised patterns are slightly misaligned in the horizontal (angular) direction.
The 2D normalised pattern is broken up into a number of ID signals, and then these ID signals are convolved with ID Gabor wavelets.
The rows of the 2D normalised pattern are taken as the ID signal, each row corresponds to a circular ring on the iris region.
The angular direction is taken rather than the radial one, which corresponds to columns of the normalised pattern, since maximum independence occurs in the angular direction.
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