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Kinect's AI Breakthrough Explained

Posted by Soulskill on from the expensive-hacker-toys dept.

mikejuk writes "Microsoft Research has just published a scientific paper (PDF) and a video showing how the Kinect body tracking algorithm works — it's almost as impressive as some of the uses the Kinect has been put to. This article summarizes how Kinect does it. Quoting: '... What the team did next was to train a type of classifier called a decision forest, i.e. a collection of decision trees. Each tree was trained on a set of features on depth images that were pre-labeled with the target body parts. That is, the decision trees were modified until they gave the correct classification for a particular body part across the test set of images. Training just three trees using 1 million test images took about a day using a 1000-core cluster.'"

1 of 97 comments (clear)

  1. Strange Descriptions... by Anonymous Coward · · Score: 5, Funny

    - "What do you do for a living?"

    - "I train trees to make a decision forest that can see human limbs."

    - "Ah, I see. Makes sense. (WHAT THE FUCK???)"