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Information processing for a body motion signal

  • US 9,050,033 B2
  • Filed: 03/29/2012
  • Issued: 06/09/2015
  • Est. Priority Date: 09/30/2009
  • Status: Expired due to Fees
First Claim
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1. An information processing method implemented on a central processing unit or microprocessor to perform information processing in an information processing apparatus that includes the central processing unit or microprocessor the information processing method including steps of:

  • obtaining body motion signal information from a body motion signal formed by an operation in which a subject carries a body motion signal detecting apparatus, the body motion signal detection apparatus being mounted on, connected to, or housed on the subject and having a body motion signal detection section that measures non-invasively and continuously at least a repetitive rhythmic motion of a human body the subject;

    applying a pattern matching process, in a cycle candidate extracting step, on the body motion signal information, and extracting a rhythm cycle candidate wave as rhythm cycle candidates related to the rhythmic motion;

    performing −

    1 or more times integration, in an auxiliary-wave producing step, on the body motion signal information to obtain a motion trajectory, determining a time scale from the motion trajectory, and performing coarse-graining on the motion trajectory by using the time scale of the motion trajectory to produce an auxiliary wave; and

    superimposing, by implementing the superimposing on the central processing unit or the microprocessor of the information processing apparatus in a cycle selecting step, the rhythm cycle candidate wave, that was extracted in the cycle candidate extracting step, on the auxiliary wave, that was obtained in the auxiliary-wave producing step, and selecting a cycle of the rhythm cycle candidate wave which has a peak in a region surrounded by a peak of the auxiliary wave, as a true cycle.

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