Patent ID: 8363259

Claim:
A method for producing printed patches to provide a plurality of color markings and high-contrast markings, comprising: (a) providing a patch; (b) printing at least one arrangement of color markings on said patch wherein said color markings are detectable under illumination from at least one wavelength of electromagnetic energy in the visible or near-visible spectrums; and (c) printing at least one arrangement of high-contrast markings on said patch wherein said high-contrast markings create contrast that is readily visible under non-visible imaging techniques wherein the arrangements of color markings provide a plurality of fiducial points, said fiducial points including a first set of fiducial points and a second set of fiducial points optically distinguishable from said first set of fiducial points, said first set of fiducial points being more closely spaced than said second set of fiducial points.