What kind of matrix barcode is this?

Question

I first assumed the image below was a QR code, but upon closer inspection, it seems to be something else (note, for example, the calibration square in the middle of the matrix).

Does anybody know what such a dot matrix is called? Are there any tools available to decode it (Python would be ideal...)?

Many thanks!

@Hacketo, indeed it is! Feel free to submit this as an answer and I will gladly accept! — Louis Thibault, Oct 08 '15 at 12:53
I don't know this tech, feel free to answer your own question :) (if it's really aztec code) — Hacketo, Oct 08 '15 at 13:03
I was able to answer this question by searching the internet for "online barcode reader" and uploading your image to the first returned website :/ — nekomatic, Oct 08 '15 at 13:23
@nekomatic, congratulations on your google-fu. I was having a bit more trouble with my keywords. — Louis Thibault, Oct 08 '15 at 14:45
Sorry, I didn't mean to be snarky. It's always easier to find something when you already know it exists. — nekomatic, Oct 08 '15 at 15:39

score 5 · Accepted Answer · edited Feb 06 '17 at 18:27

This barcode symbology is Aztec, as @Hacketo pointed out. Characterized by the finder pattern made of concentric square rings. Specifications for this symbology can be found here: http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=41548

ZXing is a very popular open source option for barcode recognition. They have beta support for the Aztec symbology. You can access the github project here: github.com/zxing/zxing

I've seen some Python ports of this library however they seem to only support QR. github.com/holizz/pyxing granted no commits have been made in a while.

What kind of matrix barcode is this?

1 Answers1