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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. [5] [6] [7] 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; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...

  3. Automatic identification and data capture - Wikipedia

    en.wikipedia.org/wiki/Automatic_identification...

    Automatic identification and data capture. Automatic identification and data capture ( AIDC) refers to the methods of automatically identifying objects, collecting data about them, and entering them directly into computer systems, without human involvement. Technologies typically considered as part of AIDC include QR codes, [1] bar codes, radio ...

  4. Fiducial marker - Wikipedia

    en.wikipedia.org/wiki/Fiducial_marker

    Fiducial marker. A ruler used as a fiducial marker. A fiducial marker or fiducial is an object placed in the field of view of an image for use as a point of reference or a measure. It may be either something placed into or on the imaging subject, or a mark or set of marks in the reticle of an optical instrument.

  5. Entry Requirements - QR Code - Jordan Forum - Tripadvisor

    www.tripadvisor.com/ShowTopic-g293985-i2131-k...

    Hello - quick question : I just came across a posting about entry requirements and obtaining a QR code, "legalrover" said one has to apply a "minimum of 72 hours before entry" -- how early can one apply, i.e. we'll be flying from Cairo to Amman on 28 March but we are leaving home on 14 March.

  6. Cross-device tracking - Wikipedia

    en.wikipedia.org/wiki/Cross-device_tracking

    Cross-device tracking is technology that enables the tracking of users across multiple devices such as smartphones, television sets, smart TVs, and personal computers. [ 1][ 2] More specifically, cross-device tracking is a technique in which technology companies and advertisers deploy trackers, often in the form of unique identifiers, cookies ...

  7. Optical mark recognition - Wikipedia

    en.wikipedia.org/wiki/Optical_mark_recognition

    Optical mark recognition (OMR) is the scanning of paper to detect the presence or absence of a mark in a predetermined position. [ 5] Optical mark recognition has evolved from several other technologies. In the early 19th century and 20th century patents were given for machines that would aid the blind. [ 3]

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