著者

徳永 康祐 小川 将樹 池畑 諭 増田 知尋 妹尾 武治

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.21, no.1, pp.35-47, 2016

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Recently, we can very easily and frequently find vection scenes in Japanese movies and animation films. However there had not been a database for them. Our purpose of this study was to make a database of vection scenes in Japanese movies and animations and provide VR psychologists all over the world with that database. We checked many movies and animations and found 30 vection scenes. We uploaded that information on our web site (senotake.jp). We also conducted a psychological experiment to assess vection strength obtained by those scenes and compared them to perceived vection obtained by a normal and simple vection stimulus (the standard stimulus) that had been used in our previous vection experiments. The results showed that perceived vection induced by those scenes were nearly the same strength as that of vection induced by the standard stimulus. We also revealed some effective and inefficient techniques of scene presentations in this study. Finally we calculated various image statistics and compared them to vection strength. That analysis revealed that a scene that contained more changes could induce stronger vection. We sincerely hope that this study can be the bridge between experimental psychologists and contents creators and developers.

著者

妹尾 武治

出版者

日本認知科学会

雑誌

認知科学 (ISSN:13417924)

巻号頁・発行日

vol.21, no.4, pp.523-530, 2014-12-01 (Released:2015-06-09)

参考文献数

10

著者

東 知宏 伊藤 裕之 須長 正治 妹尾 武治

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.21, no.3, pp.521-524, 2016 (Released:2016-10-31)

参考文献数

7

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Motion lines have been studied as expression of motion in static images. We investigated an effect of motion lines in apparent-motion displays. The smoothness of two-frame apparent motion was enhanced by presentation of a motion line between the frames, and even by simultaneous presentation of a motion line attached to an object in the first or the last frame. We additionally proved that the effect of motion lines becomes highlighted with an extended distance between apparent-motion components. The use of motion lines may contribute to production of various types of movies from the point of smoother motion impression with reduced computational load.

著者

小松 英海 村田 佳代子 妹尾 武治

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.22, no.3, pp.431-434, 2017

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<p>Vection has been studied in various methods. For example, experimental Psychological methods have a long history and brain science also afforded us with the knowledge of vection related brain areas. In this study, we newly introduce Phenomenological approach to vection research. We wanted to reveal the usefulness and importance of this method into vection research. Phenomenological approach will tell us a lot of things in vection. The details and examples of showing the power of Phenomenological approach were clearly presented in the body of this article. We want the readers to enjoy these Phenomenological analyses.</p>

著者

妹尾 武治 小川 将樹 徳永 康祐 金谷 英俊

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.21, no.3, pp.411-414, 2016 (Released:2016-10-31)

参考文献数

16

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We report a new method of facilitating illusory self-motion perception (vection). Participants held either a full glass of water or a half glass of water while experiencing vection, and were instructed not to spill any of the water. Vection strength was indexed by its latency, duration, and magnitude. Results showed that vection was enhanced in the full glass of water condition. We want to name this method of vection facilitation “full-glass-water method”.

著者

小川 将樹 妹尾 武治

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.21, no.1, pp.23-29, 2016

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We compared the strength of self-motion perception (vection) with and without a decoy who reported very strong or very weak vection. When the decoy reported strong vection, participants reported stronger vection than they did when the decoy reported weak vection. To the best of our knowledge, this is the first report demonstrating that vection perception can be altered by conformity to decoys.

著者

小川 将樹 妹尾 武治

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.21, no.1, pp.31-33, 2016

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We measured vection strength induced by six different colors in an optic flow stimulus. Vection strength was measured by using button pressing and via magnitude estimation. Vection strength was inhibited by multiple colored dots but not by uniform grey dots. Even with brighter background, this inhibition effect was obtained. This result might be related to the fact that stimuli that are 'too colorful' are not a realistic representation of the external world.

著者

小川 将樹 妹尾 武治

出版者

一般社団法人映像情報メディア学会

雑誌

映像情報メディア学会技術報告 (ISSN:13426893)

巻号頁・発行日

vol.39, no.43, pp.9-10, 2015-11-06

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他者の言動や行動によって,我々の言動や行動が他者に同調するように変化することが知られている.これは社会心理学において同調効果と呼ばれ,様々な実験によって確かめられている.本研究の目的は,この同調効果がベクションにおいても同様に生じるか否かを確かめることであった.被験者は,強いベクションを報告する他者か,弱いベクションを報告する他者がいる状態,若しくは,他者がいない状態でベクションを誘起する刺激を観察し,ベクション強度を報告した.その結果,被験者は他者の報告に同調するようなベクション強度を報告する傾向が認められた.よって,ベクションに対しても同調効果が生じることが分かった.

著者

妹尾 武治

出版者

一般社団法人 日本音響学会

雑誌

日本音響学会誌 (ISSN:03694232)

巻号頁・発行日

vol.76, no.1, pp.46-52, 2019-12-25 (Released:2020-07-01)

参考文献数

26

著者

青木 卓也 妹尾 武治 中村 信次 藤井 芳孝 石井 達郎 脇山 真治

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.25, no.3, pp.255-265, 2020-09-30 (Released:2020-09-30)

参考文献数

46

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Visually induced illusory self-motion perception is named “Vection”. In this article, we investigated the history of vection. There have been a lot of contents and technology using and relating to vection, e.g. analogue contents, movies, animations, 3D computer graphics (3D CGs), Games, and VR contents. We introduced these things in chronological order. The readers will be able to understand the history of vection very briefly.

著者

妹尾 武治 徳永 康祐 浦底 利千花

出版者

日本視覚学会

雑誌

VISION (ISSN:09171142)

巻号頁・発行日

vol.30, no.3, pp.95-102, 2018-07-20 (Released:2018-09-05)

参考文献数

8

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We interviewed seven professional creators of visual images, on “vection.” Vection is an illusion of a visually induced self-motion perception. In Seno-Lab, previously we conducted three approaches to bridge between scientific psychologists and creators of visual images, i.e., vection-scene-database in Japanese animations, movies of vection stimuli used in the previous scientific articles and the movie of a scientific introduction of vection. Seven professional creators evaluated our approaches. We got a lot of hints for the further developments of our approaches from the results of these interviews. In the seven, three contemporary artists, one movie director, two designers and one photographer were included. They suggested the future tasks for our approaches to bridge the two different business fields.

著者

妹尾 武治 清水 隆哉

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.22, no.4, pp.553-556, 2017 (Released:2017-12-31)

参考文献数

14

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We examined whether vection strength could be modulated by the difference in the conditions of observing eyes, i.e. monocular or binocular observations and also, dominant eye or non-dominant eye observations. The eyepatch was used for making the monocular observation. The dominant eye was determined using the Miles Method. Eleven naïve volunteers and the second author participated in this experiment. Three vection measures (latency, duration and magnitude) were obtained. Obtained vection latency was significantly longer in the non-dominant-eye observing condition, although there were no significant differences in vection duration and magnitude. We can conclude that vection can be affected by the conditions of observing eyes.

著者

有賀 安央衣 坂内 祐一 妹尾 武治

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.24, no.4, pp.361-370, 2019 (Released:2019-12-31)

参考文献数

38

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We conducted an experiment presenting a vection stimulus by HMD and a scent stimulus by olfactory display to investigate the interaction between vection and olfaction. We used two types of motion images with different directions and used two different scents, and measured the subjective strength by changing the strengths of these two stimuli. From the experimental results, we found that the subjective strength of the scent increased as the vection stimulus gets stronger. On the other hand, olfactory stimuli had some effect that makes vection perception irregular, but it was not clear from this experiment what kind of brain mechanism is the cause.

著者

徳永 康祐 小川 将樹 池畑 諭 増田 知尋 妹尾 武治

出版者

特定非営利活動法人 日本バーチャルリアリティ学会

雑誌

日本バーチャルリアリティ学会論文誌 (ISSN:1344011X)

巻号頁・発行日

vol.21, no.1, pp.35-47, 2016-03-31 (Released:2017-02-01)

被引用文献数

1

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Recently, we can very easily and frequently find vection scenes in Japanese movies and animation films. However there had not been a database for them. Our purpose of this study was to make a database of vection scenes in Japanese movies and animations and provide VR psychologists all over the world with that database. We checked many movies and animations and found 30 vection scenes. We uploaded that information on our web site (senotake.jp). We also conducted a psychological experiment to assess vection strength obtained by those scenes and compared them to perceived vection obtained by a normal and simple vection stimulus (the standard stimulus) that had been used in our previous vection experiments. The results showed that perceived vection induced by those scenes were nearly the same strength as that of vection induced by the standard stimulus. We also revealed some effective and inefficient techniques of scene presentations in this study. Finally we calculated various image statistics and compared them to vection strength. That analysis revealed that a scene that contained more changes could induce stronger vection. We sincerely hope that this study can be the bridge between experimental psychologists and contents creators and developers.

著者

山崎 元気 須長 正治 妹尾 武治 小崎 智照

出版者

一般社団法人日本色彩学会

雑誌

日本色彩学会誌 (ISSN:03899357)

巻号頁・発行日

vol.36, pp.144-145, 2012-05-01