An American Sign Language (ASL) recognition system is being developed using artificial neural networks (ANN) to translate the ASL words into English. The system uses a sensory glove Cyberglove™ and a Flock of Birds® 3-D motion tracker to extract the gesture features. The finger joint angle data obtained from strain gages in the sensory glove defines the handshape while the data from the tracker describes the trajectory of hand movement. The data from these devices is processed by two neural networks, a velocity network and a word recognition network. Our goal is to continuously recognize ASL gestures using these devices in real time. We trained and tested our ANN model for 50 ASL words for different number of samples. Our test results show that the accuracy of recognition is 94%.
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