W106 カルマンフィルタによる眼球動特性の可視化(生体計測2)(シンポジウム : 福祉工学)

概要

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This paper describes a method, inspired by voiceprints, to visualize dynamical features of the counterrolling : rotational eye movements being made when our bodies are tilted. The method is expected to provide a useful tool for various diagnostic purposes. It may also be worth noting that many theoretical tools for complex dynamical systems have also been inspired by visual images called strange attractors. We identify the experimental time series with a discrete time-varying model by means of Kalman filters and visualize magnitude of the internal model parameters. The obtained images visualize transfer characteristics of the counter-rolling system because the visualized parameters can be regarded as time-varying impulse responses of the counter-rolling system.
2001-08-03