著者

平澤 宏祐 白松 直樹 山本 知仁 原田 久 三宅 美博

出版者

公益社団法人 日本生体医工学会

雑誌

生体医工学 (ISSN:1347443X)

巻号頁・発行日

vol.41, no.4, pp.466-474, 2003-12-10 (Released:2011-09-05)

参考文献数

13

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In radiotherapy, it is essential to focus the radiation on the affected parts of the internal organs, like lung, liveretc., while minimizing the exposure to healthy tissues. Although methods that apply the beam to affected parts in synchronization with the patients' breathing have been used extensively, irradiation accuracy is not sufficient when the respiratory status of the patient is unstable. In this paper, we propose a new irradiation system that features (1) stabilizing the patients' respiration by synchronizing the rhythm of his/her breathing with that of music being played, and (2) controlling the timing of the irradiation based on the predicted respiratory phase instead of the measured phase that has been used widely. From experimental results using 12 subjects, it is possible to clarify that deviation of the beam irradiation position from the targeted point has been decreased to one-third as compared to conventionalmethods, resulting in a dramatic improvement in the accuracy of the irradiation system.

著者

山本 知仁 阿部 浩幸 武藤 ゆみ子 三宅 美博

出版者

The Society of Instrument and Control Engineers

雑誌

計測自動制御学会論文集 (ISSN:04534654)

巻号頁・発行日

vol.45, no.10, pp.522-529, 2009 (Released:2011-11-03)

参考文献数

18

被引用文献数

2 2

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In this research, we analyzed the dialogue that consisted of an instruction and a response utterance to clarify the relation between cognitive process and timing structure of utterance. The results showed that correlation coefficient between duration of instruction utterance and switching pause had diverse values when fluctuation of instruction utterance duration was too small to be recognized. However, the correlation coefficient between them had positive and high value when fluctuation of instruction utterance was explicitly big. From these results, we discussed that there are two types of utterance structure in human dialogue.

著者

高杉 將司 山本 知仁 武藤 ゆみ子 阿部 浩幸 三宅 美博

出版者

公益社団法人 計測自動制御学会

雑誌

計測自動制御学会論文集 (ISSN:04534654)

巻号頁・発行日

vol.45, no.4, pp.215-223, 2009 (Released:2011-11-03)

参考文献数

37

被引用文献数

3 3

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The purpose of this study is to clarify the effects of timing control of utterance and body motion in human-robot interaction. Our previous study has already revealed the correlation of timing of utterance and body motion in human-human communication. Here we proposed a timing control model based on our previous research and estimated its influence to realize human-like communication using a questionnaire method. The results showed that the difference of effectiveness between the communication with the timing control model and that without it was observed. In addition, elderly people evaluated the communication with timing control much higher than younger people. These results show not only the importance of timing control of utterance and body motion in human communication but also its effectiveness for realizing human-like human-robot interaction.

著者

小林 弘幸 大村 卓矢 山本 知仁

出版者

公益社団法人 計測自動制御学会

雑誌

計測自動制御学会論文集 (ISSN:04534654)

巻号頁・発行日

vol.51, no.4, pp.233-239, 2015 (Released:2015-04-15)

参考文献数

17

被引用文献数

4

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Speech dialogue systems, such as Apple's “Siri,” have gradually become more widespread, and in the near future, a greater number of general users will have the opportunity to communicate with such systems. To facilitate this, it is necessary for the system to communicate more naturally with users, and to realize that both verbal and nonverbal information must be taken into consideration. In this research, using an available speech recognition platform, we have developed simple dialogue system that consider utterance timing and evaluated it. As a result, it is clarified that the mean error of generated pause duration is controlled within 20msec, and the proper fixed pause duration is turned to be 600msec in this system. Moreover, the evaluation of generative models of pause duration showed that the model that synchronized the utterance duration weakly or fixed pause duration (600msec) model tended to get best results.

著者

高杉 將司 吉田 祥平 沖津 健吾 横山 正典 山本 知仁 三宅 美博

出版者

公益社団法人 計測自動制御学会

雑誌

計測自動制御学会論文集 (ISSN:04534654)

巻号頁・発行日

vol.46, no.1, pp.72-81, 2010 (Released:2011-11-03)

参考文献数

42

被引用文献数

4 5

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The purpose of this study is to clarify the influence from timing of utterance and body motion in dialogue between human and robot. We controlled pause duration and nod response timing in robot-side, and analyzed impression of communication in human-side by using Scheffe's Paired Comparison method. The results revealed that the impression of communication significantly modified by changing the pause duration and nod response timing. And, timing pattern of the impression altered diversely in elderly people than in younger, indicating that elderly generation uses various timing control mechanisms. From these results, it was suggested that timing control and impression of communication are mutually influenced, and this mechanism is thought to be useful to realize human-robot communication system for elderly generation.