An intelligent approach to recognize touchless written bengali characters

This paper proposes a touchless written Bengali character recognizer (TBR), a new touchless approach to write and an intelligent approach to recognize Bengali characters. In TBR, the inputs of Bengali characters have been taken by touchless fashion i.e. by sensing specific color object with a moving hand tracking in front of a webcam. Then they have been recognized by efficient Artificial Neural Network (ANN). Like the application of other traditional computer input devices such as mouse or keyboard, TBR can be extended to write and recognize Bengali words and sentences by adding characters one by one to the text editor. Proposed TBR has been applied for several different forms of touchless writings, namely 49 Bengali characters and 10 Bengali digits. Here for training, ANN with Scale Conjugate Gradient (SCG) method has been used that converges the training time faster and recognizes with good generalization ability. TBR can be useful for the disabled person who wants to write Bengali but cannot write even by any hand.