Information processing method for body motion signal, information processing system for body motion signal, information processing apparatus for body motion signal, recording medium storing program, and program
On a body motion signal which is obtained by an operation in which a subject carries a body motion signal detecting apparatus having a body motion signal detection section that measures non-invasively and continuously at least a repetitive rhythmic motion of a human body, an information processing apparatus performs information processing including following steps of (1) to (3), and a result obtained in the information processing is extracted, (1) a cycle candidate extracting step of applying a pattern matching process on the body motion signal information, and extracting rhythm cycle candidate waves which are rhythm cycle candidates related to the rhythmic motion； (2) an auxiliary-wave producing step of performing -1 or more times integration on the body motion signal information to obtain a motion trajectory, and performing coarse-graining on the motion trajectory to produce an auxiliary wave； and (3) a cycle selecting step of superimposing the rhythm cycle candidate waves which are extracted in the cycle candidate extracting step, on the auxiliary wave which is obtained in the auxiliary wave producing step, and selecting a cycle of a rhythm cycle candidate wave which has a peak in the auxiliary wave, as a true cycle.
