Development and implementation of an application that translates the alphabet and the numbers from 1 to 10 from sign language to text to help hearing impaired by Android mobile devices

This article is based on the design and implementation of an application for mobile devices with Android operating system, which allows the interrelation of people with hearing impairment. The application is able to learn and recognize a letter or number sign language with no movement by applying artificial neural networks. The application indicates whether the captured image is part of the letter to be recognized, if the image does not belong to the corresponding letter, the application displays an error message.