Is there a way to accomplish something similar to what the iTunes and App Store Apps do when you redeem a Gift Card using the device camera, recognizing a short string of characters in real time on top of the live camera feed?

![iTunes App Redeem Gift Card UI](https://i.stack.imgur.com/Ubj4l.png)

I know that in iOS 7 there is now the `AVMetadataMachineReadableCodeObject` class which, AFAIK, only represents barcodes. I'm more interested in detecting and reading the contents of a short string. Is this possible using publicly available API methods, or some other third party SDK that you might know of?

There is also a video of the process in action:

<https://www.youtube.com/watch?v=c7swRRLlYEo>

Best,