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Quick Response (QR) Code. Danoosh Davoodi , Lilian Pintos, Mia Butorac. Introduction to QR Codes. Quick Response Codes Like barcodes, but better! There are several types of QR codes (just like barcodes) but all store more data than barcodes.

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Quick Response (QR) Code


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    quick response qr code

    Quick Response (QR) Code

    DanooshDavoodi, Lilian Pintos,

    Mia Butorac

    introduction to qr codes
    Introduction to QR Codes
    • Quick Response Codes
    • Like barcodes, but better!
      • There are several types of QR codes (just like barcodes) but all store more data than barcodes.
    • They are essentially barcodes that have a greater capacity for data storage because their matrix system facilitates information to be read horizontally and vertically rather than just vertically like standard UPC barcodes.
      • More on this later.
    • Relies on smartphone technology
      • Users have to possess a smartphone and have minimal working knowledge of how to use an application.
    organizational needs of a library
    Organizational needs of a library
    • Administration
      • Interoffice organization and administration
    • Items (books, journals, magazines, CDs, michrofice, etc.)
      • Require identifier for checking in and out
      • Unique identifiers help track and distinguish copies
    • Promotion
      • Promoting the library in new and creative ways
    • Events, scheduling, and booking
      • Promoting and informing patrons of new events
      • Patrons booking special rooms or consultations
      • Scheduling events both by patrons and librarians
    how qr codes can be used for organizational needs
    How QR codes can be used for organizational needs
    • Administration
      • Mail, deliveries, ILL
        • Mostly dependent on the carrier or postal service
      • Employee codes
        • Hours, contact information, scheduling, profiles, etc.
        • Public profiles and promotion of specialization and research (if any)
      • Databases and record keeping
    how qr codes can be used for organizational needs1
    How QR codes can be used for organizational needs
    • Items
      • QR codes for each item
        • Allows for greater variety of codes
        • Scanning a code could link to a variety of sources:
          • OPAC, to a site that provides more information, allows patrons to read more about the item, put it on hold, find a map of where it is located, find related material, links to reviews, bookmark, citations, etc.
        • Check in/out items
          • Would have to be restricted to library scanners
    how qr codes can be used for organizational needs2
    How QR codes can be used for organizational needs
    • Promotion
      • Advertising with QR codes that leads to the website or further advertising.
      • QR codes within the library can be used to promote new reads, book trailers, ebooks, audiboooks, etc.
      • Events taking place within the library, community, or city.
      • Contests, games, giveaways, or gift shop promotion.
    how qr codes can be used for organizational needs3
    How QR codes can be used for organizational needs
    • Events, scheduling, and booking
      • Show a list of events taking place in the library
        • Children’s programs, resume writing workshops, arts programs, etc.
        • Provide information for creating a new event.
      • Booking special study rooms or consultations
        • Group study rooms, reference questions with librarians, technological or software consultation, etc.
          • For example: the study rooms in the Law Library use QR codes that lead you to a page where you can book.
    some examples of qr code use in libraries
    Some examples of QR code use in libraries
    • Half Hollow Hills Community Library
      • Uses codes at end of stacks to lead patrons to subject guides online
    • Lafayette College Library
      • Using QR codes for Open House event aimed at first year students to play the game “Where in the Library is Carmen Sandiego: An Interactive Mystery Game” where they collected QR coded-clues from librarians in the library
    • Sacramento Public Library
      • QR code that loads the library’s text message reference services information into the patron’s phone
    • Syracuse University Library Learning Commons
      • QR codes on bookmarks, tabletop signs, and flyers advertising their virtual tour
    • Marathon County Public Library
      • Uses poster and print media to connect patrons to the library catalog and events taking place in the library (book clubs, author visits)

    Source: QR Codes. Library Success: A Best Practices Wiki.http://www.libsuccess.org/index.php?title=QR_Codes

    barcode
    Barcode
    • A barcode is a machine-readable representation of data that can be detected by optical devices and relates to the object to which it is attached.
    • In 1946 two graduate students at Drexel institute of technology named Bernard Silver and Norman Joseph woodland started research to automatically identify food products. Their inspiration came from Morse code and they simply extended the dots and dashes downwards. In October 1949 their idea was patented.
    symbologies
    Symbologies
    • Continuous: Characters in continuous symbologies usually with about one character ending with a space and the next beginning with a bar.
    • Discrete: Characters in discrete symbologies begin and end with bars; the intercharacter space is ignored, as long as it is not wide enough to look like the code ends.
    • Two-width: Bars and spaces in two-width symbologies are wide or narrow; the exact width of a wide bar has no significance as long as the symbology requirements for wide bars are adhered to (usually two to three times wider than a narrow bar).
    • Multi-width: Bars and spaces in many-width symbologies are all multiples of a basic width called the module; most such codes use four widths of 1, 2, 3 and 4 modules.
    barcode types
    Barcode Types

    Linear (1D):

    • Code 39
    • Code 128
    • EAN 13
    • U.P.C

    Matrix (2D)

    • Data Matrix
    • PDF417
    • QRcode
    qr code
    QR Code
    • QR Code is a two-dimensional symbol. It was invented in 1994 by Denso, one of major Toyota group companies, and approved as an ISO international standard (ISO/IEC18004) in June 2000. This two-dimensional symbol was initially intended for use in production control of automotive parts, but it has become widespread in other fields.
    encoding
    Encoding
    • The encoding type is determined in a 4 bit wordcodein the bottom right side of the QR code.
    error correction
    Error Correction
    • Error correction codewords in the QR code are 8 bits long and they apply non-binary cyclic error correction algorithm named Reed-Solomon.
    • QR codes have four levels of error correction. The higher the error correction level, the less storage capacity.
    versions
    Versions
    • There are 40 versions of QR codes from 21 by 21 to 177 by 177. All versions support every level of error correction.
    types of qr code
    Types of QR Code
    • Model 1: original QR code with largest version 14 with 73x73 dimensions (up to 3,688 characters).
    • Model 2: improvement of model 1 with alignment pattern, largest version of 40 with 177x177 dimensions (up to 7,089 characters)
    types of qr code cont
    Types of QR Code (cont)

    Micro QR code

    • Only one finder pattern.
    • Largest version M4 (17x17).
    • Works with 2 module worth margin.
    • Small printing.
    types of qr code cont1
    Types of QR Code (cont)

    iQRcode

    • Can store greater amount of data than the same size QRcode (up to 80% more data or 30% size reduction).
    • Can be printed in rectangular shape.
    • Largest version is 422*422 that can hold 40.000 characters.
    • Extremely high error correction (up to 50%).
    types of qr code cont2
    Types of QR Code (cont)

    SQRC

    • Data for Secure QRC consists of public part and private part. With SQRC, it is possible to store 2 control levels of information in one code.
    • Can be read only by specific types of scanners. 
    • The same looks as regular QR code.
    types of qr code cont3
    Types of QR Code (cont)

    LogoQ

    • Character LogoQ:
    • LogoPass: is a QR Code which displays a QR Code and several images alternately.
    • LogoQMotion: LogoQMotion is an animated QR Code created to express encoded content with animation by combining moving images with a QR Code.
    characteristics
    Characteristics
    • Direction (360°) High-Speed Reading.
    • High efficiency error correction (damaged/dirt)
    • Security and encryption
    • Direct marking
    characteristics cont
    Characteristics (cont)
    • Resistant to Distorted Symbols.
    elements
    Elements
    • Finder Pattern (1): The finder pattern consists of three identical structures that are located in all corners of the QR Code except the bottom right one. The Finder Patterns enable the decoder software to recognize the QR Code and determine the correct orientation.
    • Separators (2): The white separators have a width of one pixel and improve the recognizability of the Finder Patters as they separate them from the actual data.
    • Timing Pattern (3): Alternating black and white modules in the Timing Pattern enable the decoder software to determine the width of a single module.
    • Alignment Patterns (4): Alignment Patterns support the decoder software in compensating for moderate image distortions. Version 1 QR Codes do not have Alignment Patterns. With growing size of the code, more Alignment Patterns are added.
    • Format Information (5): The Formation Information section consists of 15 bits storing information about the error correction level and the masking pattern.
    elements cont
    Elements (cont)
    • Data (6): Data is converted into a bit stream and then stored in 8 bit parts (codewords).
    • Error Correction (7): Error correction codes are stored in 8 bit codewords.
    • Remainder Bits (8): This section consists of empty bits of data and error correction bits can not be divided into 8 bit codewords without remainder.
    decoding example
    Decoding Example
    • QR code for DanooshDavoodi.
    • Error correction level: Low.
    • Mask pattern: (j mod 3 = 0).
    why would we want to use qr codes
    Why would we want to use QR codes?
    • As we’ve seen, an ever increasing number of tasks can be achieved using a QR code. The core ones are,
    • Link to web site
    • Send an sms to a phone
    • Transfer a phone number
    • Provide more text
    • Etc!

    URL

    slide31

    For the purposes of this mini workshop, we’ll learn to create a QR code for your resume, which you can include in your business card

    what do we need to create and use qr codes
    What do we need to create and use QR codes?
    • QR Code Generator
    • There are many different apps that do this; most are free.

    Smartphones:

    • Camera phone
    • Decent connectivity
    • QR Code Reader
    creating a qr code for your resume
    Creating a QR Code for your resume

    Step 1: Identify what you want to encode

    In this case, because we want a resume, we’re going to encode the C.V. we already have on our LinkedIn page.

    Note: It is important to note that in order for the public to have access to the information we are encoding, this information needs to be publicly available.

    creating a qr code for your resume1
    Creating a QR Code for your resume

    Step 2: Shorten the URL. In this case we’ll use

    goo.gl

    Goo.gl URL Shortener is ideal for turning annoying long links into something more consumable for Twitter and other social networks.

    Goo.gl URL Shortener is ideal for turning annoying long links into something more consumable for Twitter and other social networks.