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作者： Jayasekara, Buddhika Watanabe, Keigo Izumi, Kiyotaka Department of Advanced Systems Control Engineering Saga University Saga 840-8502 Japan

ISBN: (纸本)9784990288037

This paper proposes a method for understanding the user commands based on visual attention. Visual attention system is implemented to evaluate the fuzzy linguistic information based on the environmental conditions. It is assumed that the corresponding distance value for a particular fuzzy linguistic command depends on the spatial arrangement of the surrounding objects. A fuzzy logic based voice command evaluation system (VCES) is proposed to assess the uncertain information in user commands. A situation of object manipulation for rearranging the users working space is simulated to illustrate the system. It is demonstrated with PA-10 robot manipulator. ©ISAROB 2009.

关键词： Fuzzy logic

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Feature extraction for mental fatigue and relaxation states based on systematic evaluation considering individual difference

IEEJ Transactions on Electronics, Information and Systems

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IEEJ Transactions on Electronics, Information and systems 2009年第2期129卷 302-307+16页

作者： Chen, Lanlan Sugi, Takenao Shirakawa, Shuichiro Zou, Junzhong Nakamura, Masatoshi Department of Automation East China University of Science and Technology Shanghai 200237 China Department of Advanced Systems Control Engineering Saga University Saga 840-8502 Japan National Center of Neurology and Psychiatry Tokyo Japan

Feature extraction for mental fatigue and relaxation states is helpful to understand the mechanisms of mental fatigue and search effective relaxation technique in sustained work environments. Experiment data of human states are often affected by external and internal factors, which increase the difficulties to extract common features. The aim of this study is to explore appropriate methods to eliminate individual difference and enhance common features. Mental fatigue and relaxation experiments are executed on 12 subjects. An integrated and evaluation system is proposed, which consists of subjective evaluation (visual analogue scale), calculation performance and neurophysiological signals especially EEG signals. With consideration of individual difference, the common features of multi-estimators testify the effectiveness of relaxation in sustained mental work. Relaxation technique can be practically applied to prevent accumulation of mental fatigue and keep mental health. The proposed feature extraction methods are widely applicable to obtain common features and release the restriction for subjection selection and experiment design. © 2009 The Institute of Electrical Engineers of Japan.

关键词： Feature extraction

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Construction of simple communication method by use of neuro-biological signals

Construction of simple communication method by use of neuro-...

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ICROS-SICE International Joint Conference 2009, ICCAS-SICE 2009

作者： Thara, Takahiro Sugi, Takenao Eriguchi, Makoto Asami, Toyoko Nakamura, Masatoshi Department of Electrical and Electoronic Engineering Saga University Saga Japan Saga University Hospital Saga Japan Department of Advanced Systems Control Engineering Saga University Saga Japan

ISBN: (纸本)9784907764333

Many persons suffer from severe disabilities such as amyotrophic lateral sclerosis (ALS) caused by neurological disorders. Such kinds of disabilities bring various restrictions to communication and circumstance in their daily life. A simple communication method using neuro-biological signal will be effective and helpful to enhance their life quality In this study, a simple on-off communication method using electroencephalogram (EEG) and electrooculogram (EOG) was proposed. In case of EEG, parameters for linear regressive equation were selected by AIC. The results showed that the accuracy was extremely high with both communication methods. © 2009 SICE.

关键词： Brain computer interface

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Research on the virtual space system used for learning of autonomous robots

Research on the virtual space system used for learning of au...

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ICROS-SICE International Joint Conference 2009, ICCAS-SICE 2009

作者： Yano, Hirotsugu Douzono, Hiroshi Fujiwara, Ryouhei Department of Advanced Systems Control Engineering Saga University Saga Japan Oki Software Co. Ltd. Japan

ISBN: (纸本)9784907764333

Recently, the applications of the virtual space become more popular. In some cases, the experiments in real space require huge time and huge costs. For such cases, experiments in the virtual space are applied. We have developed virtual space system for learning of autonomous robot controlled with visual information in OpenGL space. The purpose of this study is to develop the more realistic virtual space which can compensate the difference between real space and virtual space. For this purpose, we introduced the texture mapping to the object in virtual space and the additional virtual sensors which can use for controlling the robot. We made some experiments of autonomous robots controlled by SOM-RL algorithm and examine the effectiveness of proposed system. © 2009 SICE.

关键词： Robots

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Evaluating fuzzy voice commands by user guided visual attention for controlling a robot manipulator

Evaluating fuzzy voice commands by user guided visual attent...

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ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009

作者： Buddhika, A.G. Jayasekara, P. Watanabe, Keigo Izumi, Kiyotaka Department of Advanced Systems Control Engineering Graduate School of Science and Engineering Saga University 1-Honjomachi Saga 840-8502 Japan

ISBN: (纸本)9784907764296

This paper proposes a method for evaluating fuzzy voice commands (FVCs) by user guided visual attention. FVCs inherit fuzzy linguistic information due to the inclusion of fuzzy linguistic terms such as "very little." The contextual meaning of such information depends on the environmental arrangement. Therefore, visual attention system (VAS) is utilized to evaluate the fuzzy linguistic information based on the environmental conditions. It is implemented by assuming that the corresponding distance value for a particular FVC depends on the spatial arrangement of the surrounding objects in the environment. A fuzzy logic based voice command evaluation system (VCES) is proposed to assess the fuzzy linguistic information in user commands. In addition, the user has been given the freedom to adjust command evaluation process by changing the attention level. It is achieved by using attentive voice commands such as "move carefully." A situation of object manipulation by navigating the tip of a robot manipulator through the user's working space is demonstrated to illustrate the system where a PA-10 robot manipulator is used. © 2009 SICE.

关键词： Fuzzy logic

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Voice-based control of a robotic forceps by using displayed image and auxiliary information

Voice-based control of a robotic forceps by using displayed ...

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作者： Watanabe, Keigo Tokunaga, Takuya Izumi, Kiyotaka Department of Advanced Systems Control Engineering Graduate School of Science and Engineering Saga University 1-Honjomachi Saga 840-8502 Japan

ISBN: (纸本)9784990288037

A method of using an image related to three-dimensional movement and of auxiliary information is proposed for controlling a robotic forceps with voice instructions, where information on the tip-position in three-dimension and on the distance of the previous movement is viewed as the auxiliary one. A degree-related adverb included in the voice instruction is quantified by using fuzzy reasoning, in which such auxiliary information is also applied to update the membership functions so as to realize a user-friendly interface. ©ISAROB 2009.

关键词： Membership functions

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Automatic detection of apnea and EEG arousals for sleep apnea syndrome

Automatic detection of apnea and EEG arousals for sleep apne...

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ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009

作者： Matsuoka, Genya Sugi, Takenao Kawana, Fusae Nakamura, Masatoshi Department of Advanced Systems Control Engineering Saga University Saga Japan Department of Electrical and Electric Engineering Saga University Saga Japan Department of Clinical Physiology Toranomon Hospital Tokyo Japan

ISBN: (纸本)9784907764296

Sleep apnea/hypopnea syndrome (SAHS) is one of serious sleep disorders. EEG arousals due to the apnea hypopnea are frequently appeared in polysomnographic (PSG) record in patients with SAHS. Tn this study, the method for detecting EEG arousals and apnea interval in PSG record was proposed for supporting visual inspection to classify respiratory levels and EEG arousals. Two threshold values were established for classi fying the sleep apnea conditions and threshold values for detecting EEG arousals were then determined according to the results of apnea interval detection. Proposed automatic detection method will be an effective for diagnosis support system. © 2009 SICE.

关键词： Sleep research

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Construction of simulation model for OTEC plant using Uehara cycle

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IEEJ Transactions on Power and Energy 2009年第2期129卷 272-282+3页

作者： Goto, Satoru Motoshima, Yoshiki Sugi, Takenao Yasunaga, Takeshi Ikegami, Yasuyuki Nakamura, Masatoshi Department of Advanced Systems Control Engineering Saga University 1 Honjomachi Saga 840-8502 Japan Institute of Ocean Energy Saga University 1 Honjomachi Saga 840-8502 Japan

Ocean Thermal Energy Conversion (OTEC) converts heat energy into electricity using 20-27 [°C] temperature difference between warm seawater at surface and cold seawater in depth. In this paper, a simulation model for an OTEC plant, which uses the Uehara cycle with an ammonia-water mixture as working fluid, is constructed based on the mass balance and the heat balance. Moreover, a method of the initial value determination for numerical simulation is developed. Accuracy of the simulation model was evaluated by comparing with the experimental results of a pilot OTEC plant. © 2009 The Institute of Electrical Engineers of Japan.

关键词： Binary mixtures

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Finite state machine with adaptive electromyogram (EMG) feature extraction to drive meal assistance robot

IEEJ Transactions on Electronics, Information and Systems

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IEEJ Transactions on Electronics, Information and systems 2009年第2期129卷 308-313+17页

作者： Zhang, Xiu Wang, Xingyu Wang, Bei Sugi, Takenao Nakamura, Masatoshi Department of Automation East China University of Science and Technology 130 Meilong St. Shanghai 200237 China Department of Electrical and Electronic Engineering Faculty of Science and Engineering Saga University 1 Honjomachi Saga 840-8502 Japan Department of Advanced Systems Control Engineering Graduate School of Science and Engineering Saga University 1 Honjomachi Saga 840-8502 Japan

Surface electromyogram (EMG) from elbow, wrist and hand has been widely used as an input of multifunction prostheses for many years. However, for patients with high-level limb deficiencies, muscle activities in upper-limbs are not strong enough to be used as control signals. In this paper, EMG from lower-limbs is acquired and applied to drive a meal assistance robot. An onset detection method with adaptive threshold based on EMG power is proposed to recognize different muscle contractions. Predefined control commands are output by finite state machine (FSM), and applied to operate the robot. The performance of EMG control is compared with joystick control by both objective and subjective indices. The results show that FSM provides the user with an easy-performing control strategy, which successfully operates robots with complicated control commands by limited muscle motions. The high accuracy and comfortableness of the EMG-control meal assistance robot make it feasible for users with upper limbs motor disabilities. © 2009 The Institute of Electrical Engineers of Japan.

关键词： Robots

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Implemantation and evaluation of the gesture interface for object based e-learning system

Implemantation and evaluation of the gesture interface for o...

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2009 4th International Conference on Innovative Computing, Information and control, ICICIC 2009

作者： Nagata, Kazuo Dounoue, Satoshi Koshi, Kazuhiro Miyoshi, Masazumi Kiyota, Kimiyasu Depertment of Information Communication and Electronic Engineering Kumamoto National College of Technology Kumamoto Japan Advanced Course of Electronics and Information Systems Engineering Kumamoto National College of Technology Kumamoto Japan Department of Human-Oriented Information Systems Engineering Kumamoto National College of Technology Kumamoto Japan

ISBN: (纸本)9780769538730

The basis of the e-learning system used in most educational institutions is a character representation by a web browser. This has caused a decrease in usability. It's user interface is not easy for beginners. Therefore, the user comes to have to study the manner of operation of the system before original study. This paper proposes the GI (Gesture Interface) as an operation method for e-learning system. Users can operate e-learning system viscerally by using GI. We have implemented and evaluated some gestures for object based e-learning system that has made on Adobe Flash. This system recognizes two positions and motions of user's fingers from an USB web camera. This allows users to give the system several gestures. © 2009 IEEE.

关键词： User interfaces

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