Microsoft reveals secrets behind Kinect
A paper published on Microsoft’s website describes some of the secrets behind the company’s Kinect gaming sensor. Its body-tracking algorithm, for example, assigns each pixel in the images it captures to a particular part of a player’s body. It begins by evaluating the pixel’s rough location – near the head or the feet, for example – and then assigns it to a more precise location: a hand, say, or a leg. Using this information, the system then calculates the likely position of the joints within each limb to build a 3D skeleton.
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