Data Matrix and Aztec Code have significantly lower capacity (4096 alphanumeric characters for QR Code, 3067 for Aztec Code and 2335 for Data Matrix), so if you would like to encode a lot of text, select QR Code.
Aztec Code may not support UTF-8 characters for the time being, so if you encounter such a problem try QR Code or Data Matrix. Another caveat of Aztec Code is that, it is not supported by most of the scanner programs out there. As for Kanji and Cyrillic characters, only QR Code should support them.
Micro QR Code cannot hold more than 35 numeric and 21 uppercase alphanumeric characters, and it can hold even less characters when you use lowercase characters.
High Capacity Colour Barcode (HCCB) is the name coined by Microsoft for its technology of encoding data in a 2D "barcode" using clusters of colored triangles instead of the square pixels traditionally associated with 2D barcodes. Data density is increased by using a palette of 4 or 8 colors for the triangles, although HCCB also permits the use of black and white when necessary. It has been licensed by the ISAN International Agency for use in its International Standard Audiovisual Number standard, and serves as the basis for the Microsoft Tag mobile tagging application.
Created by Toyota subsidiary Denso Wave in 1994 to track vehicles during the manufacturing process, the QR code is one of the most popular types of two-dimensional barcodes. It was designed to allow its contents to be decoded at high speed.
Data Matrix and Aztec Code have significantly lower capacity (4096 alphanumeric characters for QR Code, 3067 for Aztec Code and 2335 for Data Matrix), so if you would like to encode a lot of text, select QR Code.Micro QR Code cannot hold more than 35 numeric and 21 uppercase alphanumeric characters, and it can hold even less characters when you use lowercase charactersAztec Code may not support UTF-8 characters for the time being, so if you encounter such a problem try QR Code or Data Matrix. Another caveat of Aztec Code is that, it is not supported by most of the scanner programs out there. As for Kanji and Cyrillic characters, only QR Code should support them.
Since QR Code carries information both horizontally and vertically, QR Code is capable of encoding the same amount of data in approximately one-tenth the space of a traditional bar code.
QR Code is capable of 360 degree (omni-directional), high speed reading. QR Code accomplishes this task through position detection patterns located at the three corners of the symbol. These position detection patterns guarantee stable high-speed reading, circumventing the negative effects of background interference.
QR Code can be divided into multiple data areas. Conversely, information stored in multiple QR Code symbols can be reconstructed as single data symbols.One data symbol can be divided into up to 16 symbols, allowing printing in a narrow area.
EncodingThe diagram below illustrates the placement of the message characters within a QR code. Starting from the lower-right corner, the first four bits define the encoding used (in this case, 8 bits per character). Next is the length of the message (17; dark stands for 1, but the masking process used in this symbol inverts alternate rows). Following that is the message itself, then the end-of-message marker, and finally the error-correcting codes.
QR Codes in Libraries
QR CODESDavid Harvie and Krista RobinsonStratford Public Library
Overview Matrix Codes Types of Matrix Codes Why QR Codes QR Codes - Characteristics and Structure Examples of Use in Libraries Various QR Code Readers Where to make your own Concerns/Issues
Matrix Codes A matrix code, also termed a 2D barcode or simply a 2D code, is a two- dimensional way to represent information. It is similar to a linear (1-dimensional) barcode, but can represent more data per unit area. (Source: Wikipedia)
QR Codes – Data SetsQR Codes are capable of handling numerous types of data: numeric and alphabetic characters other character sets - Cyrillic , Kanji, etc. symbols Binary control codes
QR Codes - Storage Efficient – one tenth the size required for traditional bar code. QR Code Data Capacity Numeric only Max. 7,089 characters Alphanumeric Max. 4,296 characters Binary (8 bits) Max. 2,953 bytes Kanji, full-width Kana Max. 1,817 characters
QR Codes – Error Correction Data can be restored even if the symbol is partially dirty or damaged. Different levels of error correction are available: Level L - 7% Level M - 15% Level Q - 25% Level H - 30%
QR Codes - Linkable Structured Append Feature
QR Codes - License The use of QR codes is free of any license. The QR code is clearly defined and published as an ISO standard. Denso Wave owns the patent rights on QR codes, but has chosen not to exercise them.
Where Will You See a QR Code Everywhere! Subways & Shopping – Billboards see Tesco QR Code video Business cards Airline boarding passes Print ads Contests Packaging and labeling Self guided tours Restaurants / museums / tourist … and in Libraries! attractions http://2d-code.co.uk
Uses & Examples Advertise Databases Preferably with mobile versions
Uses & Examples Advertise Apps Take the user directly to the iTunes store for BookMyne or Overdrive Media Console Mobile
Uses & Examples Advertise Events Map to event Facebook Event or website details Add event to a scanner’s calendar
Uses & Examples On Business Cards Links to our mobile website Create a vCard or meCard to add contact info directly to a mobile device
Uses & Examples In Buses In Contra Costa Library System, billboards with QR Code that links to a mobile site for their Overdrive site http://goo.gl/W98RV
Uses & Examples Library Tours Each scan reveals information about that area of the library Design to work on a mobile site or in a youtube video Syracuse University
Uses & Examples In Library Catalogues Scan & bring up an item’s location = no scrap paper! – Ryerson University Library & Archives
Uses & Examples On bookmarks linking to staff book reviews On book covers to “read alike” lists In Books with the Phone Number / website embedded for renewals Link to your RSS feed for easy subscription SMS/Email for text-a-librarian or email a librarian services Check availability of study rooms Wifi login link or instructions Create predefined searches at a book display Within a press release to take readers to a specific page or download on your website
FREE QR Code Generators Kaywa QR Stuff goo.gl GOQR.me Beqrous ZXinghttp://www.stratford.library.on.ca/mobile/main.html
QR Code Grader Scan-ability Uses URL Shortner Lists “How To” Instructions URL or SMS for “Unsmart Phones” Content fit for a mobile screen Compelling content Clear Call to Action Opt-In To Collect Customer data Social Sharing on the Landing QR Code for Louis Vuitton by SET page Bonus: Visually EnhancedSource: http://m-bossed.com
Free Apps to Use iPhone Blackberry Android RedLaser QR Code QR Droid Scan Scanner QuickMar i-nigma Pro k Code QR Muncher Barcode Scanner More phones & readers - http://goo.gl/osNvQ
Concerns/Issues Requires a smart phone Work for often little payback Keeping Track of Stats Use a site like www.youscan.me to generate QR Codes & maintain stats Use Google Analytics campaigns - http://goo.gl/klN1k Is it a fad? According to a recent infographic, QR Code scans have increased by 4549% between Q1 2010 and Q1 2011 68% iPhone, 26% Andorid and 4% Blackberry queaar.com Viruses Infected Codes are an issue if you download risky software from the landing page - http://2d-code.co.uk/qr-code-virus
Contact Information David Harvie Krista Robinson Stratford Public Library Stratford Public Library firstname.lastname@example.org Krobinson@pcin.on.ca