QRCodes

Slide 1: QR Codes Bridging the physical and virtual worlds with funny-looking barcodes. Tristan Roddis, Cogapp www.QRtists.com Tristan Roddis, Cogapp www.QRtists.com

Slide 2: What are QR codes? 2-D barcodes - more data in same space ● Invented in Japan in 1994 ● Error tolerant ● Alphanumeric up to 4,296 characters ● Support for multiple parts ● ISO standard ● Similar to: Data Matrix, Shotcode, Quick code ● Tristan Roddis, Cogapp www.QRtists.com

Slide 3: Why are they special? Because they can be decoded by mobile ● phones Built in to many phones (esp. Japan) ● Available for lots of others (http://qrtists.com/s) ● [insert impressive statistic about mobile phone ● use here] Tristan Roddis, Cogapp www.QRtists.com

Slide 4: Demo Tristan Roddis, Cogapp www.QRtists.com

Slide 5: Generating QR codes Websites ● Firefox extension ● Open source C program: qrencode ● PHP/CGI ● See list at http://qrtists.com/s ● Tristan Roddis, Cogapp www.QRtists.com

Slide 6: Uses of QR codes Tracking objects ● Business cards ● Email sigs ● Linking to websites ● Adverts ● Tristan Roddis, Cogapp www.QRtists.com

Slide 7: Tristan Roddis, Cogapp www.QRtists.com

Slide 8: Tristan Roddis, Cogapp www.QRtists.com

Slide 9: Source: http://www.pinktentacle.com/2007/04/movie-qr-code-and-kung-fu-high-school-girls/ Tristan Roddis, Cogapp www.QRtists.com

Slide 10: Tristan Roddis, Cogapp www.QRtists.com

Slide 11: Source: http://www.gearfuse.com/junkfood-maker-prints-qr-code-on-prawn-crackers/ Tristan Roddis, Cogapp www.QRtists.com

Slide 12: Demo Tristan Roddis, Cogapp www.QRtists.com

Slide 13: Why is this more interesting? Physical location maps to virtual location ● Same input token provides different output ● (website maintains state) Users can be tracked (cookies etc.) ● Users provide information just by using the ● system (web 2.0 Holy Grail!) Tristan Roddis, Cogapp www.QRtists.com

Slide 14: Source: http://news.bbc.co.uk/1/hi/technology/6938244.stm Tristan Roddis, Cogapp www.QRtists.com

Slide 15: Parting thoughts Link up to dynamic websites ● Use in different situations ● Games ● Ticketing – concert example ● Previewing – music store example ● Collecting - museum example ● Need an open source reader! ● Tristan Roddis, Cogapp www.QRtists.com

Slide 16: Questions? Tristan Roddis, Cogapp www.QRtists.com