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bscphil10/01/20243 repliesview on HN

This looks super cool but I could only get 10/21 to scan with the classic zxing scanner (>100M downloads), and 3 of those took a bunch of playing with camera angles and distance, so I'd recommend against using anything too fancy for real world barcodes.


Replies

zhengkyl10/01/2024

Thanks for trying it out! I definitely agree, the fancier it gets the harder it is to scan so these should not be used for real world stuff where reliability is important.

I basically only tested these on my own phone, a pixel 7 with default camera app, so I'm not surprised people with different hardware/software are getting varied results. I think I might try to automate testing using different scanners if I can figure that out.

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sandos10/01/2024

Hmm, yes, I did not try these but I have noticed that my default phone app in my S22 is freakishly fast at detecting QR codes, something I never remember that zxing was.

Does anyone know if these are today implemented in neural networks or something? Specialized hardware? Or just very well optimized. Sometimes it feels like only 1 frame in the camera is enough, and distance, angle, lighting and focus is not important.

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keepamovin10/01/2024

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