3 ms·
2D barcodes such as QR and datamatrix certainly have their place, but I wouldn't say they're "massively resilient" to failure. The codes use reed-solomon ECC a
by crispyambulance 8y ago
2D barcodes such as QR and datamatrix certainly have their place, but I wouldn't say they're "massively resilient" to failure.
The codes use reed-solomon ECC and the symbology spec has different levels of error tolerance ranging up to a max of ~30% errors. That's certainly robust but it still requires a controlled optical setup to avoid operator frustration. Sometimes, in some applications, a nice big 1D barcode is better. Your 150 meter postage stamp example is an extreme use case that requires a lot of setup to work properly.
This color barcode appears to be an effort from a respected institution to increase information density. It doesn't have to be immediately accepted by major manufacturers to succeed. It just has to solve some problems for some applications. I think it's a compelling new symbology.
I work in manufacturing too.
- imhoguy 8y agoWhat if we add color or even UV/IR to an existing QR code just to increase data redundancy? Backward-compatibility FTW!
- dsl 8y agoIt is already in the works. In 3-5 years every big box store product will have UV QR codes on every side of external packaging that encode the existing product barcode plus a unique per item ID. This is being done to improve self check out speed (no more having to find the bar code) and help with tracking receipt-less returns (this box of cereal was purchased at our store).
- bigiain 8y agoDo you have any hints as to what terms I should be googling for to find out more about this? I'm _very_ curious...
- dsl 8y agoNot offhand, sorry. It came up with some engineers while I was doing a security audit on a self checkout machine.
- jackfraser 8y ago> (this box of cereal was purchased at our store). Think of the impact on forensics when every single article contains its source of origin. Time to start a company selling an invisible privacy spray for your cereal box that coats it in UV ink and obscures the original invisible barcode...
- dwild 8y agoThere's already invisible barcode on some backaging. I had a UV light and used it over a Pringle can and there was a code there!