That's the aim of a project from Jeremy Rubin, working in the Viral Spaces group under Andrew Lippman at the MIT Media Lab.
Instead of taking a photo of the code, people move their phone over the pattern and Graffiti Codes uses the phone's accelerometers to pick it up. The phone's software recognises the pattern and converts it to code that digitally links to a web page. A pattern can be drawn on any surface with a marker. Anyone can scan the graffiti with their own phone and be pointed to the same information.