Walking pattern processing method and system for embodying the same
AssigneeNippon Telegraph and Telephone Corporation
InventorsJunji Yamato, Kyoko Sudo, Akira Tomono, Masanobu Arai
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Abstract
According to the present invention, two-dimensional pressure distribution associated with walking are collected at a preselected time interval as time series pressure distribution images, superposed images are formed by superposing the time series pressure distribution images in a time direction, a plurality of foot pressure mass regions are extracted from the superposed images, correspondence of each foot pressure mass region to the time series pressure distribution images are detected, feature parameters associated with the walking are detected based on the correspondence, and the feature parameters are displayed or printed.
Claims9
A walking pattern processing apparatus comprising:
- a pressure sensor for acquiring two-dimensional pressure distribution associated with walking,
- time series pressure distribution image detecting means for collecting output from said pressure sensor at a preselected time interval as time series pressure distribution images;
- superposed image forming means for forming superposed images by superposing said time series pressure distribution images in a time direction;
- foot pressure mass region picking-out means for magnifying regions containing pixel values by certain pixels and then regarding said regions superposed with each other upon being magnified so as to distinguish a plurality of foot pressure mass regions from one another to extract each foot pressure mass region from said superposed images;
- step correspondence detecting means for detecting correspondence of said each foot pressure mass region to said time series pressure distribution images;
- parameter detecting means for detecting feature parameters of said walking based on said correspondence detected by said step correspondence detecting means;
- and
- outputting means for outputting said parameters.
Dependencies are inferred from the claim text.