Patent ID: 7170490

Claim:
A method for finding a pointing element within a digital image comprising the steps of: a) receiving a digitized image including a background and an object to be tracked, said background and said object having a different color; b) defining a rectangle within said image including at least a portion of said object; c) conducting a search within the defined rectangle starting at a position adjacent a first side of a bottom portion of said rectangle and continuing in a direction towards a second side of said rectangle until said object is located and storing a first x value corresponding thereto; d) conducting a second search within the defined rectangle starting at a position adjacent said second side of said bottom portion of said rectangle and continuing in a direction towards said first side of said rectangle until said object is located and storing a second x value corresponding thereto; e) conducting a third search within the defined rectangle starting at a position adjacent a top portion of said rectangle and offset from said first x value and continuing in a direction towards said bottom until said object is located and storing a first y value corresponding thereto; f) conducting a fourth search within the defined rectangle starting at a position adjacent said top portion of said rectangle and offset from said second x value and continuing in a direction towards said bottom until said object is located and storing a second y value corresponding thereto; g) conducting a fifth search using the stored first x and second x and first y and second y positions to find a point representing one of a leftmost and a rightmost position of said object and storing x and y coordinates corresponding to said found point.