Patent ID: 6565003
Filing Date: 2003-05-20
Classification: G06K

Abstract:
A method of locating a two-dimensional barcode within a scanned binary image comprising:(A) moving a window across said image in stepwise fashion in a predetermined pattern; (B) testing at each step a portion of said image which is encompassed by said window to determine whether said portion of said image conforms to one or more characteristics of said two-dimensional barcode; (C) cropping said portion of said image which is encompassed by said window and comparing dimensions of said cropped portion to predetermined dimensions when said portion of said image does conform to said one or more characteristics of said two-dimensional barcode; (D) moving said window to avoid said cropped portion when said dimensions of said cropped portion do not conform to said predetermined dimensions; and (E) setting boundaries of said two-dimensional barcode within said scanned binary image as the boundaries of said window when said portion of said image does conform to said one or more characteristics of said two-dimensional barcode and when said dimensions of said cropped portion conform to said predetermined dimensions.