Google recently announced the development of software that will allow smartphones to detect and interpret sign language (source). The algorithms needed for a computer to interpret hand movements and deduct speech is quite complicated. Google has created this software and made it free and accessible to the public so developers can create programs (apps, etc) in order to allow this technology to be used by the public. “We’re excited to see what people come up with. For our part, we will continue our research to make the technology more robust and to stabilise tracking, increasing the number of gestures we can reliably detect,” a spokeswoman for Google told the BBC” (source). You can read the announcement from Google by clicking here and the article by BBC by clicking here.
All sourced information is hyperlinked as applicable above.