A concept - holotag, of an automatic holographic-aided identification label is presented with comparative advantages. Technological challenges met on the concept experimental implementation are reviewed. The label carried information is first transposed with a 2-D interleaved self-correcting spatial coding into a plane binary object patch pattern. Then recorded in the form of a computer generated Fourier hologram, spatially multiplexed- holotag, onto an optical recording material-Digital Paper, laminated and protection covered. Image processing techniques followed by decoding procedures regenerate the original data despite process incurred degradations.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Oliverio D.D. Soares, Luis Miguel Bernardo, Maria Isilda Pinto, F. V. Morais, "Holotag: a novel holographic label", Proc. SPIE 1332, Optical Testing and Metrology III: Recent Advances in Industrial Optical Inspection, (1 January 1991); doi: 10.1117/12.51056; https://doi.org/10.1117/12.51056

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