| 摘要 |
An indicia for marking on an object, such as a cartridge case (16), for representing selected information, such as identification indicia (421) identifying the firearm (12) that discharged the cartridge (16), and methods and apparatus for generating, imprinting and reading the identification indicia (421). An indicia (421) includes a multi-dimensional array of encode d marks, including encoded marks determined by spectral encoding variables representing the selected information wherein each spectral variable representing variables, and an encoded pattern of the encoded marks is determined by algorithmic transformation of the selected information. An indicia (421) may also include hologram related artwork. An indicia (421) ma y be an encoded hologram multi-dimensional barcode (EHMDB), an encoded hologra m or an encoded concentric circular barcode (ECCB) and may be formed of a sing le indicia or as an array of indicia.
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