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Proceedings Paper

Holotag: a novel holographic label
Author(s): Oliverio D.D. Soares; Luis Miguel Bernardo; Maria Isilda Pinto; F. V. Morais
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Paper Abstract

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.

Paper Details

Date Published: 1 January 1991
PDF: 19 pages
Proc. SPIE 1332, Optical Testing and Metrology III: Recent Advances in Industrial Optical Inspection, (1 January 1991); doi: 10.1117/12.51056
Show Author Affiliations
Oliverio D.D. Soares, Univ. do Porto (Portugal)
Luis Miguel Bernardo, Univ. do Porto (Portugal)
Maria Isilda Pinto, Univ. do Porto (Portugal)
F. V. Morais, Univ. do Porto (Portugal)

Published in SPIE Proceedings Vol. 1332:
Optical Testing and Metrology III: Recent Advances in Industrial Optical Inspection
Chander Prakash Grover, Editor(s)

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