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ITE review 2015 series (5);research trend on broadcasting systems, radio and optical fiber transmission systems and broadcasting facilities and operations

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Kyokai Joho Imeji Zasshi/Journal of the Institute of Image information and Television Engineers 2015年第9期69卷 733-751页

作者： Iai, Naohiko Onishi, Masayoshi Murata, Hidekazu Ishida, Hidenori Iwamoto, Masanobu Morizumi, Toshiharu Ishida, Toshihiro Saito, Kazuyuki Oota, Junichi Hattori, Masanori Okada, Minoru Takesue, Hiroyuki Yanagisawa, Hitoshi Nishizawa, Shinichi Fukazawa, Tomomi Koike, Yukihiro Kai, Tsukuru Science and Technology Research Laboratories NHK Tokyo Japan Graduate School of Informatics Kyoto University Kyoto Japan TV TOKYO Corp. Tokyo Japan Media Strategy Office Tokyo Broadcasting System Television Inc. Tokyo Japan NTT Service Evolution Laboratories Yokosuka Japan Toshiba Corp. Fuchu Japan Center for Frontier Medical Engineering Chiba University Chiba Japan Sumitomo Electric Industries LTD. Yokohama Japan Japan Graduate School of Information Science Nara Institute of Science and Technology Ikoma Japan Hitachi Kokusai Electric Inc. Kodaira Japan Broadcast Engineering Department NHK Tokyo Japan Fuji television Network Inc. Tokyo Japan Tokyo Broadcasting System Television Inc. Tokyo Japan TV Asahi Corp. Tokyo Japan Nippon Television Network Corp. Tokyo Japan

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Inspection of the motion artifact removal method from the EEG by using accelerometer

Transactions of Japanese Society for Medical and Biological ...

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Transactions of Japanese Society for Medical and Biological engineering 2014年 52卷 O-359-O-360页

作者： Onikura, Kazuki Iramina, Keiji Graduate School of Information Science and Electrical Engineering Kyushu University Japan Graduate School of System Life Science Kyushu University Japan Kyushu University Japan

Artifact often mingles with the EEG (electroencephalogram). It makes difficult to make out the intrinsic signal. The aim of this study is removal of the motion artifact causing subjects constrained. First, head movements are measured by an accelerometer and EEG is decomposed by ICA (independent component analysis). Next, the correlation coefficient between ICs (independent components) and value of accelerometer is calculated, and ICs correlated closely with each value of three-axis acceleration and angular velocity remove. Number of removed ICs are changed automatically by the condition of artifact contamination. Last, the non-artifact EEG is reconstructed by the remainder ICs. The removal method used for 5 seconds EEG divided from 30 seconds. Subjects were imposed task that moving head with closed eyes to inspect alpha band. As a result, motion power decreased and alpha band increased relatively. So this method effects on reduction of artifact influence. © 2014, Japan Soc. of Med. Electronics and Biol. engineering. All rights reserved.

关键词： Accelerometers

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A novel approach to determine upper tolerance limit of non-stationary vibrations during rocket launch

A novel approach to determine upper tolerance limit of non-s...

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作者： Yuan, Hongjie Huang, Qian Wang, Fei School of Reliability and System Engineering Beihang University Beijing100083 China Department of Computer Science and Engineering Wright State University DaytonOH45324 United States Department of Electronics and Information Engineering Harbin Institute of Technology Shenzhen Graduate School Harbin518085 China

This paper firstly introduces a locally stationary model to analyze non-stationary environmental vibrations during a rocket launch. Then based on this model, a novel method is proposed to estimate the upper tolerance limit of expected non-stationary environmental vibrations, which can be used to evaluate whether equipments on rocket can experience environmental vibrations in safe. Compared with available method, the proposed method can characterize non-stationary vibration better. © JVE INTERNATIONAL LTD.

关键词： Wavelet transforms

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Towards a location-based service for early mental health interventions in disaster response using minimalistic tele-operated android robots technology

Towards a location-based service for early mental health int...

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ISPRS Technical Commission IV Symposium 2014

作者： Vahidi, H. Mobasheri, A. Alimardani, M. Guan, Q. Bakillah, M. Faculty of Information Engineering China University of Geosciences Wuhan China GIScience Research Group University of Heidelberg Heidelberg Germany Department of System Innovation Graduate School of Engineering Science Osaka University Osaka Japan Center for Advanced Land Management Information Technologies School of Natural Resources University of Nebraska-Lincoln Lincoln United States Department of Geomatics Engineering University of Calgary AB Canada

ISBN: (纸本)9781629935201

Providing early mental health services during disaster is a great challenge in the disaster response phase. Lack of access to adequate mental-health professionals in the early stages of large-scale disasters dramatically influences the trend of a successful mental health aid. In this paper, a conceptual framework has been suggested for adopting cellphone-type tele-operated android robots in the early stages of disasters for providing the early mental health services for disaster survivors by developing a location-based and participatory approach. The techniques of enabling GI-services in a Peer-to-Peer (P2P) environment were studied to overcome the limitations of current centralized services. Therefore, the aim of this research study is to add more flexibility and autonomy to GI web services (WMS, WFS, WPS, etc.) and alleviate to some degree the inherent limitations of these centralized systems. A P2P system Architecture is presented for the location-based service using minimalistic tele-operated android robots, and some key techniques of implementing this service using BestPeer were studied for developing this framework.

关键词： Location based services

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Estimation of Lumbar Load by 2D Reconstruction of Spine Line Using Wearable Sensor system

Estimation of Lumbar Load by 2D Reconstruction of Spine Line...

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IEEE International Conference on systems, Man, and Cybernetics

作者： Yoshio TSUCHIYA Yoshikazu MATSUO Takayuki TANAKA Hokkaido University Graduate School of Information Science and Technology Hakodate National College of Technology Department of Production System Engineering Hokkaido University Graduate School of Information Science and technology

ISBN: (纸本)9781479938414

Anteflexion is essential for many physical activities ranging from carrying objects through snow shoveling to farm work. However, lumbago is a common cause of anteflexion, in which lumbar disks are under a heavy load due to changes in lumbar spine shape. With the aim to reduce lumbago risk, in this study we developed a motion sensor system that can estimate the shape, posture and load on the lumbar spine from measuring the lumbar in the lumbar region when the lumbar spine shape changes and the pelvis posture angle changes. We present a wearable version of this sensor system, and propose an estimation method of the lumbar shape using the pelvis posture angle and lumbar region skin curvature from this system. In addition, we measure the anteflexion using this system and study the change in load of the lumbar spine caused by changes in posture.

关键词： Atmospheric measurements Particle measurements Shape measurement Accelerometers Equations

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Routing Method Based on Relationships between Neighboring Nodes in Wireless Mesh Networks

Routing Method Based on Relationships between Neighboring No...

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International Conference on Advanced information Networking and Applications Workshops (AINAW)

作者： Wataru Kobayashi Yuta Maruoka Kazunori Ueda School of Information Kochi University of Technology Kochi Kami Tosayamada Miyanokuchi Energia Communications Inc Graduate School of Electronic and Photonics System Engineering Course Kochi University of Technology

Wireless mesh networks (WMN) enable easy construction and management of wireless network environments. In WMNs, access points communicate wirelessly and establish routes to other access points autonomously. This technology is useful in serious situations, such as natural disasters, because access points do not require wired connections to establish appropriate communication routes. However, the communication of routing information consumes significant network bandwidth. We propose a new routing method for WMNs that is based on the relationships between access points. Simulation results show that the proposed routing method reduces the number of communication control packets generated by each access point.

关键词： Routing Wireless mesh networks Routing protocols Ad hoc networks Wireless communication Mobile nodes

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Fast regular expression matching based on Dual Glushkov NFA 18

Fast regular expression matching based on Dual Glushkov NFA

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18th Prague Stringology Conference, PSC 2014

作者： Kurai, Ryutaro Yasuda, Norihito Arimura, Hiroki Nagayama, Shinobu Minato, Shin-Ichi JST ERATO MINATO Discrete Structure Manipulation System Project Sapporo060-0814 Japan Graduate School of Information Science and Technology Hokkaido University Sapporo060-0814 Japan Department of Computer and Network Engineering Hiroshima City University Hiroshima731-3194 Japan

ISBN: (纸本)9788001055472

This paper presents a new regular expression matching method by using Dual Glushkov NFA. Dual Glushkov NFA is the variant of Glushkov NFA, and it has the strong property that all the outgoing transitions to a state of it have the same labels. We propose the new matching method Look Ahead Matching that suited to Dual Glushkov NFA structure. This method executes NFA simulation with reading two input symbols at the one time. We use information of next symbol to narrow down the active states on NFA simulation. It costs additional working memory to apply Look Ahead Matching to ordinal Thompson NFA. However, we can use this method with no additional memory space if use it with Dual Glushkov NFA. Experiments also indicate that the combination of Dual Glushkov NFA with Look Ahead Matching outperforms the other methods on NFAs converted from practical regular expressions. © Czech Technical University in Prague, Czech Republic.

关键词： Finite automata

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An integrated framework for energy optimization of embedded real-time applications

An integrated framework for energy optimization of embedded ...

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作者： Takase, Hideki Zeng, Gang Gauthier, Lovic Kawashima, Hirotaka Atsumi, Noritoshi Tatematsu, Tomohiro Kobayashi, Yoshitake Koshiro, Takenori Ishihara, Tohru Tomiyama, Hiroyuki Takada, Hiroaki Graduate School of Information Science Nagoya University Nagoya-shi464-8601 Japan System LSI Research Center Kyushu University Fukuoka-shi814-0001 Japan Toshiba Corporation Kawasaki-shi212-8582 Japan College of Science and Engineering Ritsumeikan University Kusatsu-shi525-8577 Japan

This paper presents a framework for reducing the energy consumption of embedded real-time systems. We implemented the presented framework as both an optimization toolchain and an energy-aware real-time operating system. The framework consists of the integration of multiple techniques to optimize the energy consumption. The main idea behind our approach is to utilize trade-offs between the energy consumption and the performance of different processor configurations during task checkpoints, and to maintain memory allocation during task context switches. In our framework, a target application is statically analyzed at both intra-task and inter-task levels. Based on these analyzed results, runtime optimization is performed in response to the behavior of the application. A case study shows that our toolchain and real-time operating systems have achieved energy reduction while satisfying the real-time performance. The toolchain has also been successfully applied to a practical application. Copyright © 2014 The Institute of Electronics, information and Communication Engineers.

关键词： Energy utilization

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Fuzzy-rule-embedded reduction image construction method for image enlargement with high magnification

Fuzzy-rule-embedded reduction image construction method for ...

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International Conference on Computer Vision Theory and Applications (VISAPP)

作者： Hakaru Tamukoh Noriaki Suetake Hideaki Kawano Ryosuke Kubota Byungki Cha Takashi Aso Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology Kyushu Japan Graduate School of Science and Engineering Yamaguchi Universitv Yamaguchi Japan Graduate School of Engineering Kyushu Institute of Technology Kyushu Japan Department of Intelligent System Engineering Ube National College of Technology Ube Japan Faculty of Management and Information Sciences Kyushu Institute of Information Sciences Kyushu Japan

ISBN: (纸本)9781479976867

This paper proposes a fuzzy-rule-embedded reduction image construction method for image enlargement. A fuzzy rule is generated by considering distribution of pixel value around a target pixel. The generated rule is embedded into the target pixel in a reduction image. The embedded fuzzy rule is used in a fuzzy inference to generate a highly magnified image from the reduction image. Experimental results, which scale factors are three and four, show that the proposed method realizes high-quality image enlargement in terms of both objective and subjective evaluations in comparison with conventional methods.

关键词： Interpolation Fuzzy logic Measurement uncertainty Image edge detection Image color analysis Image resolution TV

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Adaptative motion control system of a snake-like robot using a neural oscillator netowork

Adaptative motion control system of a snake-like robot using...

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International Symposium on Soft Computing and Intelligent systems (SCIS)

作者： Takayuki Matsuo Kazuo Ishii Dept. of Information Systems Engineering NCT Kitakyushu College Kitakyushu Fukuoka Japan Dept. of Human Intelligence System Graduate School of Life Science and System Engineering Kitakyushu Fukuoka Japan

This paper presents a design method for a phase lag adjustment system using neural oscillators for a snake-like robot. The neural oscillator or central pattern generator (CPG), one of biomimetic behavior control system has attract attentions as we can see the similar rhythmical system in the natural creatures like fish swimming, bird flapping, etc, and these behaviors are considered to be optimized to their working environments. We found that the neural oscillator group had the possibility to adjust the robot behavior into working environment by using physical feedback signals from the working environment. The neural oscillator network adjusts their phase lag between neural oscillators to adapt their motor torques and trajectory to the working environment. In this paper, we present an phase lag auto-adjustment system using neural oscillator and its application into motion control of a snake-like robot, and the efficiency is evaluated through simulations and experiments using a 8-links snake robot.

关键词： Oscillators Robots Joints Trajectory Neurons Force Adaptive control

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