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Real-Time Classification of Dance Gestures from Skeleton Animation

Real-Time Classification of Dance Gestures from Skeleton Animation. Michalis Raptis , UCLA CSD Darko Kirovski , Hugues Hoppe, Wei-ge Chen, Microsoft Research Joel Pritchett, Tom Fuller, Chuck Noble, XBOX Microsoft Game Studios. Absolute motion. Relative motion. Oracle vs. Random Dancer.

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Real-Time Classification of Dance Gestures from Skeleton Animation

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  1. Real-Time Classification of Dance Gestures from SkeletonAnimation MichalisRaptis, UCLA CSD Darko Kirovski, Hugues Hoppe, Wei-ge Chen, Microsoft Research Joel Pritchett, Tom Fuller, Chuck Noble, XBOX Microsoft Game Studios

  2. Absolute motion Relative motion

  3. Oracle vs. Random Dancer Oracles

  4. Oracle vs. Player Mean Oracle Player mean Torso angles Elbows Wrists Knees Feet Right Left

  5. Towards MLE True negative True positive Torso angles Elbows Wrists Knees Feet

  6. Confusion Matrix • HMM-based, others 50-60%

  7. Summary • Features – generic, nearly lossless • Dance aligned to beat – no major time-warp • Detection • Normalized circular cross correlation via FFT • Maximum Likelihood estimator • Logistic regression to resolve class similarity • Fast, scalable, extraordinary ROC

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