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22
The motion analysis and interactivity systems

After seeing the initial movement material that Bill had developed for this piece, the motion analysis team focused on some key aspects of the choreography. The first was being able to identify if and when Bill used one of the 22 poses. We also wanted to know how long he held a pose and in what sequence a series of poses might occur.Using the angles of each joint for every individual pose, we were able to identify in real-time which of the 22 poses Bill performed. Given this information we are able to determine how the poses are being used – for example, is Bill moving through a fast sequence or is he holding a pose for an extendedlength of time.Recognizing intricate static postures is an important step in the process of identifying stylized movement. Our future goals will include the recognition of dynamic dance movements and phrase material.

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The Katherine K. Herberger College of Fine Art and the Ira A. Fulton School of Engineering at Arizona State University.
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