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> The problem with this is that it's prone to error (doesn't have error correcting bits Doesn't the use of the latin alphabet act a bit like an error correctio
by avian 7y ago
> The problem with this is that it's prone to error (doesn't have error correcting bits
Doesn't the use of the latin alphabet act a bit like an error correction code here? In contrast to a pure binary code you know that only certain shapes are valid, which should allow you to do some guessing if you don't get a perfect match.
- jakear 7y agoDoesn’t help if a whole cell is missing, whereas with QR codes chunks can be entirely gone without consequence.
- pause_break 7y agoCan you give some practical examples of where that would be useful? Honestly curious, don't know much about this space.
- Xeago 7y agoA lot of applications centralize their logo in a QR code, obscuring a significant chunk. Yet the code scans fine and there is some nice custom recognizability for which service it is.
- wingerlang 7y agoMaybe scanning from photos where the code is obscured, bad quality, almost-trashed physical codes.
- jakear 7y agoPhysical sticker exposed to the environment. Scrapes/marks are common, they would render the “HR” code useless, but the QR would be fine. Or at least stay fine for longer. So the trade off becomes: do I post something that will be accessible to everyone, even those without a phone, for a week; or do I post something that will be accessible to everyone with a phone for two weeks. Given almost everyone has a phone, the answer is obvious. (Making up the times, but you get the idea)
- theon144 7y ago"Guessing" and "a bit like" are key qualifiers here; error correction codes in QR provide a pretty hard guarantee and won't scan corrupted. With this scheme, who knows?