Patent ID: 6532297
Filing Date: 2003-03-11
Classification: G07D,G07F

Abstract:
A method for determining the number of chips and the value assigned each chip within a stacked pile of one or more gambling chips comprising the following steps:detecting an upper horizontal edge and a lower horizontal edge for each chip within the stacked pile by performing the step of horizontal edge extraction which includes the following steps: (a) generating at each pixel location, for each component, five consecutive rows of data, each of which is horizontally averaged; (b) calculating absolute differences between a center row average and upper and lower neighboring row averages; and (c) calculating an absolute difference between the center row average and the average of all neighboring row averages; and (d) calculating a final monochromatic pixel value of the horizontal image based on a weighted sum of all these differences; (2) detecting left and right vertical edges of features on the visible portion of the edge of each chip within the stacked pile to determine a chip features sequence for each chip; (3) analyzing the chip features sequence for each chip to determine compatibility with one of a plurality of the previously stored chip features sequences; and assigning each chip within the stacked pile with a value based on the most consistent compatibility of the chip features sequence with one of the previously stored chip features sequences.