著者

服部 正典 大須賀 昭彦 関 俊文 一色 正男 本位田 真一

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.123, no.11, pp.2010-2019, 2003-11-01

参考文献数

12

被引用文献数

1

---

This paper describes a “Ubiquitous Personalize Agent” and it’s application: “Shopping assistance service” for ubiquitous environments. Ubiquitous personalize agent is realized based on context reasoning technology. It can determine contexts of users by referring a lot of data which can be retrieved from devices in ubiquitous environments. We also have had an experimental trial of this service. In this paper, we state the technology, service, and evaluation on the experimental trial.

著者

大西 正輝 小田島 正 羅 志偉

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.125, no.6, pp.856-862, 2005-06-01

参考文献数

13

被引用文献数

10 4

---

Recently, active researches have been performed to increase a robot's intelligence so as to realize the dexterous tasks in complex environment such as in the street or homes. However, since the skillful human-like task ability is so difficult to be formulated for the robot, not only the analytical and theoretical control researches but also the direct human motion mimetic approach is necessary. In this paper, we propose that to realize the environmental interactive task, it is insufficient to replay the human motion along. We show a novel motion generation approach to integrate the cognitive information into the mimic of human motions so as to realize the final complex task by the robot. As a detailed example of the task, we consider on how to carry up a human by cooperating two hands.

著者

平澤 宏太郎 大久保 雅文 片桐 広伸 胡 敬炉 村田 純一

出版者

電気学会

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.121, no.6, pp.1001-1009, 2001-06-01

参考文献数

10

被引用文献数

31

著者

椎屋 和久 泉田 喜一郎 デルウィシュ サラハ 外山 太郎

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.123, no.3, pp.511-516, 2003-03-01

参考文献数

11

被引用文献数

2 3

---

This paper is concerned with the calculation of the epipolar line based on the time series images of a moving monocular camera. The purpose of our research is to present a simple method to calculate the epipolar line with sufficient accuracy for matching between the time series images. In this paper we propose an useful method which allows as to calculate the epipolar line by using the compound sensor that combined a monocular camera and an inertial sensor. The inertial sensor gives us the rotation angles and the accelerated velocity vectors of the camera. First, a pair of camera-images is changed into the relation of parallel stereo vision, by the use of the rotation angles. And the baseline between the parallel images is determined by using the rotation data and the acceleration data. Next, the epipolar line of a targeted point is obtained. Moreover, we show the validity of this method which used the combined sensor that can be applied even when a camera carries out movement of 6 degrees of freedom, by the experiment using the camera images and the inertial sensor's data.

著者

竹内 英世 保黒 政大 梅崎 太造

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.130, no.6, pp.1042-1053, 2010-06-01

参考文献数

29

被引用文献数

2

---

KARAOKE is a popular amusement for old and young. Many KARAOKE machines have singing evaluation function. However, it is often said that the scores given by KARAOKE machines do not match human evaluation. In this paper a KARAOKE scoring method strongly correlated with human evaluation is proposed. This paper proposes a way to evaluate songs based on the distance between singing pitch and musical scale, employing a vibrato extraction method based on template matching of spectrum. The results show that correlation coefficients between scores given by the proposed system and human evaluation are -0.76∼-0.89.

著者

佐藤 立博 三橋 龍一 佐鳥 新 佐々木 一正

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.129, no.6, pp.1094-1100, 2009-06-01

参考文献数

11

被引用文献数

4 1

---

In recent years, many universities have already launched small satellite on-orbit. Attitude information is important for satellite operation. However, many nano-satellite communication systems used amateur radio by narrow bandwidth frequency segment. Therefore, down-link of attitude information is expected to require substantial time. In this paper, we propose establishment of the attitude estimation method by means of the received radio power. And, satellite attitude information being estimated from the fluctuation of the received power. Then, comparison of satellite data obtained from on-board sensors with ground experiment. One major problem in this approach is the effect of Earth's ionosphere. As the radio signal passes through the ionosphere, the polarization angle is rotated by the Faraday Effect. The detection of attitude by the radiation pattern has been assumed that inaccurate. However, we are get data the spin satellite of liner polarization antenna. As a result, we can estimate 0.12rad/s accuracy of angular velocity measurement. This method can be applied to the attitude detection of many small satellites.

著者

依田 育士 細谷 大輔 坂上 勝彦

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.124, no.3, pp.805-811, 2004-03-01

被引用文献数

9 11

---

Dozens of people are killed every year when they fall off of train platforms, making this an urgent issue to be addressed by the railroads, especially in the major cities. This concern prompted the present work that is now in progress to develop a Ubiquitous Stereo Vision based system for safety management at the edge of rail station platforms. In this approach, a series of stereo cameras are installed in a row on the ceiling that are pointed downward at the edge of the platform to monitor the disposition of people waiting for the train. The purpose of the system is to determine automatically and in real-time whether anyone or anything is in the danger zone at the very edge of the platform, whether anyone has actually fallen off the platform, or whether there is any sign of these things happening. The system could be configured to automatically switch over to a surveillance monitor or automatically connect to an emergency brake system in the event of trouble.

著者

中谷 多哉子 羽生田 栄一 黒川 利明 直田 繁樹 大須賀 昭彦 児玉 公信 増村 均 中村 正規 田中 立二

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.123, no.4, pp.640-648, 2003-04-01

被引用文献数

1 1

---

Object-oriented technology is used for the software of the large range, and its application fields are increasing. Object-oriented technology is also accepted naturally in the field of Internet application. Consequently, developments of new kinds of object-oriented technologies have been performed. Agent technology has been developed based on an object-oriented concept, and may have a great evolution with applying to applications of Internet field. In this paper, authors introduce the latest trend and the example of application of such object-oriented technology and agent technology.

著者

英 慎平 上保 徹志 土田 悠太 篠原 寿広 中迫 昇

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.129, no.11, pp.2027-2033, 2009-11-01

被引用文献数

3

---

In many engineering fields, distance to target is very important and fundamental information. Acoustical signal often plays an essential role in measurement of distance. Though there are distance measurement methods using a time delay between transmitted and reflected waves, it is difficult to measure short distance because the reflected waves are often buried in the transmitted wave for short distance. Recently, a method for measuring the short distance has been proposed using standing wave. We applied the fundamental principle of this method to the estimation of short distance using audible sound as a transmitted wave. This method enabled us to obtain range spectrum from power spectrum of composite sound, but it required Fourier Transfom twice. This paper introduces the chirp signal, which is a signal such that the frequency changes with lapse of time, as a transmitted wave, and an interference arises due to the superposition of transmitted and reflected waves. Since the period of power fluctuation for the composite sound is inversely proportional to the distance between microphone and target, we propose a new distance estimation method by using chirp signal as a transmitted wave. Finally, we also confirm the validity of the proposed method through computer simulation and by experiment in an actual sound field.

著者

大塚 元太 袖山 和久 吉田 知史 村中 徳明 今西 茂

出版者

電気学会

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.116, no.11, pp.1288-1294, 1996-10-20

被引用文献数

5

著者

辻村 肇 岡崎 浩也 山下 光美 土井 英明 松村 雅史

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.130, no.3, pp.376-382, 2010-03-01

被引用文献数

5 2

---

Disuse atrophy of various organs related to swallowing functions is one of the causes of swallowing disorders. In the present study, a system to measure swallowing frequency in a nonrestrictive manner over a long period of time was developed. In the present method, a throat microphone is attached to the neck region to record oral sounds. The reliability of the method is confirmed by recognizing 86% of swallowing sounds. Since the interval of swallowing in a complete rest is getting longer according to aging, the swallowing function is possibly getting weaker.

著者

田村 望 山本 隆彦 青木 広宙 越地 耕二 本間 章彦 巽 英介 妙中 義之

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.128, no.1, pp.150-151, 2008-01-01

参考文献数

4

被引用文献数

3 3

---

In Totally-Implantable Artificial Heart (TAH) system, Transcutaneous Optical Information Transmission System (TOITS) and Externally Coupled Transcutaneous Energy Transmission System (ECTETS) are effective for driving, controlling and monitoring the TAH. Using these systems, a patient needs to wear an optical coupler and a transcutaneous transformer separately, and then the patient's QOL (Quality of Life) will be deteriorated. Therefore, we research the energy and information transmission by wearing an unified transcutaneous transformer. In this paper, the unified transcutaneous transformer for the energy and information transmission was investigated. As a result, the unified transformer, by which the coupling between the energy and information transmission was reduced, was developed.

著者

桜間 一徳 原 聡司 中野 和司

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.126, no.5, pp.617-623, 2006-05-01

被引用文献数

2 1

---

This paper addresses a swing-up and stabilization problem of a cart-pendulum system using energy control and controlled Lagrangian methods. A common strategy for this problem is to switch two controllers for swing-up and stabilization according to the angle of the pendulum. In most cases, control performance greatly depends on the switching angle, and choice of a bad angle cannot even stand the pendulum upward. Thus, a lot of trial and error is necessary to find effective switching angles. To release us from the difficulty in choosing the switching angle, this paper proposes a robust control method to assist our choice based on controlled Lagrangian and energy control methods. Experimental results demonstrate that the proposed combination methods can effectively swing up and stabilize the pendulum, whereas existing methods cannot.

著者

岩井 儀雄 青木 康洋 石黒 浩

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.130, no.4, pp.546-556, 2010-04-01

被引用文献数

3 1

---

In this paper, we propose a generic framework for detecting suspicious actions with mixture distributions of action primitives, of which collection represents human actions. The framework is based on Bayesian approach and the calculation is performed by Sequential Monte Carlo method, also known as Particle filter. Sequential Monte Carlo is used to approximate the distributions for fast calculation, but it tends to converge one local minimum. We solve that problem by using mixture distributions of action primitives. By this approach, the system can recognize people's actions as whether suspicious actions or not.

著者

川田 明 上田 浩史 林 重雄 松井 靖雄

出版者

電気学会

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.116, no.11, pp.1259-1266, 1996-10-20

著者

寺田 賢治 福原 徹

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.129, no.5, pp.876-884, 2009-05-01

参考文献数

14

被引用文献数

1

---

"AWA ODDRI" dance is one of the traditional dance festival of Tokushima Prefecture in Japan. Basic operation of "AWA ODORI" dance needs harmony of hands and legs, and the rhythm of duple time, but it is not possible that the beginners do these actions completely. We have already developed the method of quantifying evaluation of the skill of "AWA ODORI" dance. But the three dimensional movements are not able to be evaluated by image squences. In this paper, the authors proposed a method of quantifying evaluation of the skill of "AWA ODORI" dance by using the three dimensional data. In this method, the image sequence of dance scenes is obtained by a stereo camera with a simple of structure. The dynamics of motion is detected by three dimensional data calculated by the stereo camera. The input data and model data of excellent dancers are compared. In this paper, we describe the algorithm of quantifying evaluation of the skill using the stereo view and show some experimental results obtained by using a simple experimental system to verify effectiveness of the proposed method.

著者

残間 忠直 福田 純一 道木 慎二 石田 宗秋 大熊 繁 松本 敬史 西森 英二

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.127, no.2, pp.264-273, 2007-02-01

参考文献数

14

被引用文献数

1 2

---

This paper concerns a DC-DC converter control. In DC-DC converters, there exist both continuous components such as inductance, conductance and resistance and discrete ones, IGBT and MOSFET as semiconductor switching elements. Such a system can be regarded as a hybrid dynamical system. Thus, this paper presents a dc-dc control technique based on the model predictive control. Specifically, a case in which the load of the dc-dc converter changes from active to sleep is considered. In the case, a control method which makes the output voltage follow to the reference quickly in transition, and the switching frequency be constant in steady state. In addition, in applying the model predictive control to power electronics circuits, the switching characteristic of the device and the restriction condition for protection are also considered. The effectiveness of the proposed method is illustrated by comparing a conventional method through some simulation results.

著者

小幡 孝太郎 杉岡 幸次 甲野 竜哉 高井 裕司 豊田 浩一 緑川 克美

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.123, no.2, pp.241-245, 2003-02-01

参考文献数

13

---

Dynamics of ablation of fused silica by multiwavelength excitation process using F₂ and KrF excimer laser has been investigated by energy analyzed mass spectrometry of ablated species. The number of generated Si⁺ ion by multiwavelength excitation process corresponds to that by single-F₂ laser ablation and to approximately 2.1 times higher than that by single-KrF excimer laser ablation. In addition, kinetic energy distribution of Si⁺ ablated by multiwavelength excitation process shows almost same as that by single-F₂ laser ablation. We regard that absorption of KrF excimer laser by excited state generated by F₂ laser (excited-state absorption: ESA) causes effective photoionization, resulting in enhancement of Si⁺ with higher kinetic energy and then in high-quality ablation.

著者

山口 智

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.128, no.11, pp.1696-1703, 2008-11-01

被引用文献数

6 8

---

Differential Evolution(DE) is one of the evolutionary algorithms, and has shown excellent ability for solving global optimization problems over continuous spaces. DE has a few control parameters that have to be set by users. The ability of DE is depending on these control parameters, and, in many cases, trial-and-error process are required for finding suitable parameters. This paper proposes a method for tuning the DE control parameters automatically. The proposed method tunes control parameters within DE search process. By using this method, trial-and-error processes for finding appropriate control parameters are not required. To evaluate the performance, the proposed method was applied to 9 benchmark function optimization problems. The results indicate that the proposed method shows 100% feasibility to solving the optimization problems without outstanding increase of generations required for finding the optimum solutions.

著者

平塚 三好

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society (ISSN:03854221)

巻号頁・発行日

vol.131, no.2, pp.278-282, 2011-02-01

---

Assuming that patent trolls would come up in the field of software and the like in Japan in the future, we have proposed countermeasures to apply compulsory license against their exercise of patent right. Specifically, in order to avoid injunctive relief of the patent trolls, we have proposed that the enforcement regulation for Japanese Patent Act Article 83 is overhauled in attempt to broadly construe the provision of "the grant of non-exclusive license where invention is not worked" as "the grant of non-exclusive license where invention will not be worked in the future". Also, we have compared such countermeasures with other countermeasures to apply the principle of abuse of rights to the injunctive relief.