On Mon, May 12, 2008 at 3:34 AM, Marcus Coghlan <[EMAIL PROTECTED]> wrote: > Just wanted to follow up on the comments by Gretchen and Sanket on 2D > bar codes - in particular the QR Code from Denso. >
This is the other side of the coin: using the phone to collect data from the environment; it's a topic about which I am quite enthusiastic. A quick technology history of Denso and QR Codes - they were using QR Codes in industrial environments, in which they could use high quality optics. When the operators (especially NTT DoCoMo) decided to go with cameraphones, they decided they wanted QR Code ability, so they required better quality cameras in the mobile phones. The Japanese code system is designed for these high quality devices. Western phones will not reliably read them, though some higher end devices will. If you want to try such things in Western locales, you will probably want a different form of code and the back end infrastructure to manage it. http://reader.kaywa.com/ seems like a winner to me. There are a few others, including some just using 1-D codes. There is also a bit of work on simple image recognition; one company is specializing in recognizing movie posters. Please note that I continue to talk about devices in the mass market, not in specialized environments. If you can control the hardware you have more flexibility. -- Barbara Ballard [EMAIL PROTECTED] 1-785-838-3003 Design For Mobile 22-24 September http://design4mobile.mobi/ ________________________________________________________________ Welcome to the Interaction Design Association (IxDA)! To post to this list ....... [EMAIL PROTECTED] Unsubscribe ................ http://www.ixda.org/unsubscribe List Guidelines ............ http://www.ixda.org/guidelines List Help .................. http://www.ixda.org/help
