Walking waveform feature extraction method and personal identification device

摘要

PPROBLEM TO BE SOLVED: To provide a walking waveform feature extraction method and a personal identification device which enable the precise extraction of walking waveforms. PSOLUTION: Out of a field displacement formed in a human body associated with the walking exercise of the human body, 8 Hz peak is used as an index corresponding to the state of the human body whose one sole is landed as a whole while the tip toe of the other foot is separated just from the ground to specify one-step waveform equivalent to one step in the walking exercise, and the feature of the one-step waveform is extracted based on the one-step waveform specified. So, the index herein applicable is the peak of the amplitude which appears without being affected by the charge interference between the left and right feet and enables the accurate specification of the one-step waveform as such faithfully reflecting the actual one step in the walking exercise, thereby extracting the features of the walking waveforms accurately. PCOPYRIGHT: (C)2004,JPO