Difficulty Reading Small QR Codes in Vuforia Studio – Any Reliable Solutions?

[MA8731174]

Hi everyone,

I'm currently working on a project in Vuforia Studio that involves scanning QR codes using the built-in QR code widget. While it works in general, we've encountered a major usability issue:

📌 Very small QR codes are extremely difficult to detect.
In many cases, we have to hold the iPhone extremely close and still wait a few seconds until the scanner finally picks it up — and sometimes it doesn’t work at all unless the QR is large and isolated.

We've also experimented with custom solutions using JavaScript libraries like jsQR and zxing-js, but on iPhones in particular, either the live camera feed doesn’t render properly, or the QR is only readable when it's clearly focused and takes up most of the image.

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🔍 What we’re looking for:

• Any way to enhance the QR detection accuracy for smaller codes?

• Can we tune or replace the Vuforia Studio QR widget’s behavior or resolution?

• Any suggested workflow or library that has worked reliably on iOS devices?

This is important for our production process — we’d really appreciate any insights, experience, or recommendations!

Thanks in advance 🙏

[Catalina]

Hi @MA8731174 

Thank you for your question. 

Your post appears well documented but has not yet received any response. I am replying to raise awareness. Hopefully, another community member will be able to help.

Also, feel free to add any additional information you think might be relevant. It sometimes helps to have screenshots to better understand what you are trying to do.

Best regards,