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Motion scoring method and apparatus

  • US 10,086,283 B2
  • Filed: 10/12/2012
  • Issued: 10/02/2018
  • Est. Priority Date: 10/14/2011
  • Status: Active Grant
First Claim
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1. An entertainment system, comprising:

  • at least one input operable to receive data representative of a reference dance performance of a dance during a performance recording mode, the performance recording mode occurring while a dancer performs the dance; and

    one or more processors operatively coupled to the at least one input, the one or more processors implementing;

    a dance analyser operable to generate, from analysis of the received data, reference motion data descriptive of an aspect of the reference dance performance;

    a key-point selector operable to select a plurality of event-driven key-points in the reference dance performance, the selection of the plurality of event-driven key points being responsive to a property of the reference motion data, the property of the reference motion data being one or more of a positional, velocity, acceleration or jerk value change over time by more than a selected threshold amount;

    an error tolerance calculator operable to generate error tolerance values at the plurality of selected event-driven key-points in the reference dance performance for use in scoring one or more subsequent dance performances, the error tolerance values being linearly or nonlinearly responsive to the property of the reference motion data for each selected event-driven key-point, and the error tolerance values being stored for use in the scoring of the one or more subsequent dance performances;

    wherein the one or more processors are configured to;

    compare the stored error tolerance values against motion data of the one or more subsequent dance performances to determine a degree of error for each of the subsequent dance performances, the motion data of the one or more subsequent dance performances being of a same type as the received data representative of the reference dance performance; and

    when the determined degree of error for a given one of the subsequent dance performances exceeds an error tolerance threshold, generate a score indicative of the determined degree of error.

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