Machine recognition of sign languages is on the cards thanks to work by a team in India who are using a Microsoft Kinect movement-identifying controller. Writing in the International Journal of Computational Vision and Robotics, the team explains how their system uses just 11 of the 20 joints tracked by a Kinect and can extract novel features per frame, based on distances, angles, and velocity involving upper body joints. The team reports how the algorithm recognizes 35 gestures from Indian sign in real time with almost 90 percent accuracy.
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Recognising the signs
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