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, Oliverio D.D. Soares, Luis Miguel Bernardo, Luis Miguel Bernardo, Maria Isilda Pinto, Maria Isilda Pinto, F. V. Morais, 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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