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  2. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_Code

    The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [6] [7] [8] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [9] the pattern of the position detection markers was determined by finding the least-used sequence of ...

  3. Travel Bug - Wikipedia

    en.wikipedia.org/wiki/Travel_Bug

    A travel bug is an item which is trackable which looks similar to a dog tag. The tag is stamped with a tracking number and the Geocaching.com website address. A travel bug can be attached to another item by use of the chain on the travel bug if required, examples of such items include teddy bears, toy cars, or golf balls. [1]

  4. Wikipedia:WikiProject QRpedia/user guide - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:WikiProject...

    The codes should be well lit. Shadow makes it more difficult to scan. Avoid reflected glare (particularly when laminating the codes or placing them behind glass). Larger codes will scan more effectively. 2 inches (5 cm) across will allow for distance and older smartphones with lower quality cameras. 1 inch (2.5 cm) should be the minimum.

  5. ARToolKit - Wikipedia

    en.wikipedia.org/wiki/ARToolKit

    ARToolKit is an open-source computer tracking library for creation of strong augmented reality ... An example of an AR code containing a QR code. ... Free and open ...

  6. Rectangular Micro QR Code - Wikipedia

    en.wikipedia.org/wiki/Rectangular_Micro_QR_Code

    Rectangular Micro QR Code (also known as rMQR Code) is two-dimensional (2D) matrix barcode invented and standardized in 2022 [1] by Denso Wave as ISO/IEC 23941. [ 2 ] rMQR Code is designed as a rectangular variation of QR code and has the same parameters and applications as original QR code.

  7. Track and trace - Wikipedia

    en.wikipedia.org/wiki/Track_and_trace

    RFID is synonymous with track-and-trace solutions, and has a critical role to play in supply chains. RFID is a code-carrying technology, and can be used in place of a barcode to enable non-line of sight-reading. Deployment of RFID was earlier inhibited by cost limitations but the usage is now increasing.

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