4 ms·

QR codes are: Available right now Widely adopted Vendor-independent Free to implement Very robust Visually distinct A lot of "QR killers" co

by zyx321 12y ago

QR codes are: *Available right now *Widely adopted *Vendor-independent *Free to implement *Very robust *Visually distinct A lot of "QR killers" considered that last point as a disadvantage, and tried to "solve" it by sacrificing robustness. They failed, and most of those codes are now invalid because they relied on a proprietary service. I think it's actually a strength. You can probably train a monkey to scan a QR. Just point phone at funny square[1]. With this, most people won't even know it's there, so you'll basically need to have your phone out (but you can't even use your phone while scanning for codes, like you can with bluetooth beacons). This an impressive technology, but it's not going to "replace" QR, and the potential usage scenarios in the article are a little far fetched. [1]http://lmgtfy.com/?q=how+read+funny+square http://lmgtfy.com/?q=how+read+funny+square

qq66 12y ago
> *Widely adopted Do you have any information about how widely adopted they are? I know they are very widely printed, I bought a USB battery pack and it's got a QR code printed on the end. But the interesting question is how often they are scanned.
- Htsthbjig 12y ago
  In manufacturing it is normal to scan 100% of the products with QR codes for quality Assurance. We do, some times we use custom QR codes, with less CRC error checking. The reason is that computer(connected to) cameras could read them much better than barcodes(which need lasers or high definition cameras). Camera sensors are so cheap now and they let you read 2D instead of 1D, so you could add much more info, with simple hardware(like not having to control the illumination environment so much).
huskyr 12y ago
Even though i couldn't imagine any sane person scanning QR codes, in China they are apparently very popular: http://dangrover.com/blog/2014/12/01/chinese-mobile-app-ui-trends.html#a-nameinput-qraqr-codes-for-everything http://dangrover.com/blog/2014/12/01/chinese-mobile-app-ui-t...
- nothrabannosir 12y ago
  They are, and it's great. Why type in phone numbers or usernames for prospective contacts, just scan the code and you're good. Honestly, I don't understand why we won't use them back here. If only just for scanning stock WiFi passwords off routers, surely that would be worth it?

QR codes are: *Available right now *Widely adopted *Vendor-independent *Free to implement *Very robust *Visually distinct A lot of "QR killers" co

by zyx321 12y ago

qq66 12y ago

> *Widely adopted Do you have any information about how widely adopted they are? I know they are very widely printed, I bought a USB battery pack and it's got a QR code printed on the end. But the interesting question is how often they are scanned.

Htsthbjig 12y ago
In manufacturing it is normal to scan 100% of the products with QR codes for quality Assurance. We do, some times we use custom QR codes, with less CRC error checking. The reason is that computer(connected to) cameras could read them much better than barcodes(which need lasers or high definition cameras). Camera sensors are so cheap now and they let you read 2D instead of 1D, so you could add much more info, with simple hardware(like not having to control the illumination environment so much).

huskyr 12y ago

Even though i couldn't imagine any sane person scanning QR codes, in China they are apparently very popular: http://dangrover.com/blog/2014/12/01/chinese-mobile-app-ui-trends.html#a-nameinput-qraqr-codes-for-everything http://dangrover.com/blog/2014/12/01/chinese-mobile-app-ui-t...

nothrabannosir 12y ago
They are, and it's great. Why type in phone numbers or usernames for prospective contacts, just scan the code and you're good. Honestly, I don't understand why we won't use them back here. If only just for scanning stock WiFi passwords off routers, surely that would be worth it?