著者

本多 明生 神田 敬幸 柴田 寛 浅井 暢子 寺本 渉 坂本 修一 岩谷 幸雄 行場 次朗 鈴木 陽一

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.18, no.1, pp.93-101, 2013

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Senses of presence and verisimilitude are affected differently by temporal asynchrony between audio-visual components of audio-visual content. To investigate whether this result is valid more generally, we conducted an experiment using a clip of western orchestral music. Results revealed that the sense of verisimilitude is more sensitive to audiovisual synchronicity than to the display size, whereas the sense of presence is more sensitive to the spatial size than the temporal property. These findings corresponded well with those of the previous study, which indicated that the sense of verisimilitude is distinguishable from the sense of presence. Furthermore, we discussed important considerations related to measurement for Kansei information such as the sense of presence and verisimilitude.

著者

寺本 渉 吉田 和博 日高 聡太 浅井 暢子 行場 次朗 坂本 修一 岩谷 幸雄 鈴木 陽一

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.15, no.3, pp.483-486, 2010

被引用文献数

8

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For virtual reality systems, the enhancement of a sense of presence (a subjective experience of being in one place even when one is physically situated in another) has been the most important issue. Both theoretically and empirically, the sense of presence has been found to relate dominantly to background components contained in a scene. In contrast, the reality or virtuality which can be assumed to link essentially to foreground components in a scene has not been investigated in detail. The present study defined the latter type of sense as vraisemblance (verisimilitude), and made an exploratory investigation into spatio-temporal characteristics responsible for the higher vraisemblance by using a scene containing Shishi-odoshi (a traditional Japanese fountain made of bamboos) in a Japanese garden as audio-visual stimuli. In Experiment 1, the effects of the field size of view and the sound pressure level of the background were investigated. Higher vraisemblance was observed with the middle field size of view with the original sound pressure level of the background, whereas higher sense of presence was observed with the larger field size of view with the larger background sound. In Experiment 2, the effect of temporal asynchrony between the foreground audio-visual stimuli produced by Shishi-odoshi was investigated. The results show that the range of temporal-window for the audio-visual stimuli necessary for high vraisemblance was different from those for high presence. These findings suggest that the sense of vraisemblance can be distinguishable from the sense of presence, and deeply involved to the foreground-based aesthetic impression in a scene.

著者

西塔 宏二 岩谷 幸雄 鈴木 陽一

出版者

FIT(電子情報通信学会・情報処理学会)運営委員会

雑誌

情報科学技術フォーラム一般講演論文集

巻号頁・発行日

vol.4, no.3, pp.381-383, 2005-08-22

著者

西塔 宏二 岩谷 幸雄 鈴木 陽一

出版者

一般社団法人電子情報通信学会

雑誌

電子情報通信学会技術研究報告. EA, 応用音響 (ISSN:09135685)

巻号頁・発行日

vol.104, no.247, pp.1-6, 2004-08-13

被引用文献数

4

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ヘッドホンを用いた頭部伝達関数(HRTF)合成型の聴覚ディスプレイは,ヘッドホン特性を打ち消し利用者本人のHRTFをただみ込むことで個人化され,優れた定位感を得ることができる.しかし,ヘッドホンの特性とHRTFの測定は,一般に大がかりな測定系を必要とするため厳密な個人化は非常に困難である.そこで本報告では,さまざまなHRTFをただみ込んだ移動音像の定位感を勝抜き戦方式によって評価し,聴覚ディスプレイシステムを個人化する手法について実験を行い,その選択傾向等を考察した.