Masahiko Mikawa

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This paper reports a new myoelectric interface for robotic hand control consisting of two main parts. The first part concerns the motion classification using electromyogram (EMG) signals of a support vector machine (SVM). Because there has been little research on the application of the SVM to motion classification using EMG signals, its effectiveness has(More)
In this paper, we report a hand pose estimation using electromyogram (EMG) signals consisting of two methods. One is a method of hand motion classification with a support vector machine (SVM). The other is a method of operator's joint angle estimation based on EMG-Joint angle models, which express the linear relationships between the EMG signals and joint(More)
This paper presents a new robot system consisting of plural small size rovers for an asteroid exploration. Each rover can communicate with others using radio, and a wireless mesh network is configured on an asteroid's surface. Our proposed system has the following three advantages against a conventional exploration system using one or two rovers: (1) It is(More)
This paper proposes an improved method for a sound direction control system based on the boundary surface control principle. In our previous work, numerical simulations showed that a loudspeaker array with a square-matrix configuration and an elliptical configuration of the suppression control points achieved better characteristics than did a conventional(More)
This paper presents a new voice morphing method which focuses on the continuity of phonological identity overall interand extra-polated regions. Main features of the method are 1) to separate the characteristic of vocal tract area resonances from that of vocal cord waves by using AR-HMM analysis of speech, 2) interpolation in a log vocal tract area function(More)
In this paper, several configurations of two-dimensional loudspeaker arrays for a system for controlling the sound propagation direction are proposed and the directivities of these array configurations are discussed. The system is theoretically based on the boundary surface control principle. Three loudspeaker arrangements (cross-shaped, circular, and(More)
A library creates new services for attracting library users continuously. This paper presents a new book recommendation digital signage system. The system classifies characteristics such as gender or age of a walking library user, and displays a recommended book on an LCD for him/her. A set of silhouette image sequence of a walker extracted from real-time(More)