At the Mobile World Congress in Barcelona Google demonstrated a new prototype of the technology , which can translate the text from any given photo. Well Google Goggles is Google’s experimental Android visual search application.
Google’s Blog Post about this said,
You may wonder what’s happening in the background. On the simplest level, this prototype connects the phone’s camera to an optical character recognition (OCR) engine, recognizes the image as text and then translates that text into English with Google Translate.Right now this technology only works for German-to-English translations and it’s not yet ready for prime time. However, it shows a lot of promise for what the future might hold. Soon your phone will be able to translate signs, posters and other foreign text instantly into your language. Eventually, we’re hoping to build a version of Google Goggles that can translate between all of the 52 languages currently supported by Google Translate — bringing even more information to you on the go.