著者

吉田 圭佑 小川 剛史

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.23, no.3, pp.189-196, 2018 (Released:2018-09-30)

参考文献数

36

---

In this paper, we propose a novel method to virtually simulate the sensation of spiciness by applying thermal grill illusion to the human tongue. We describe our tongue stimulator equipped with interlaced warm and cool bars. To evaluate the effectiveness of this method, the system was experimentally tested in two studies. The first experimental results show that spicy taste was perceived by causing thermal grill illusion on the tongue. The second experimental results show that the strength of spicy perception is affected by both of average temperature and difference in temperature between warm and cool stimuli.

著者

宮地 英生

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誌 (ISSN:13426680)

巻号頁・発行日

vol.27, no.1, pp.12-13, 2022-03-31 (Released:2022-05-10)

参考文献数

3

著者

上田 祥代 吉田 成朗 渡邊 淳司 池田 まさみ 茅原 拓朗 北崎 充晃

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.1, pp.3-12, 2019 (Released:2019-03-31)

参考文献数

30

被引用文献数

1

---

The human primary somatosensory cortex corresponds to an organized topological map of all body parts (somatotopy). However, the representative proportion of body parts in the brain differs from that of the physical body. This distorted representation is called the cortical homunculus. Body parts with extensive cortical representation have a greater sensitivity in spatial resolution. We have developed the software, Face Homunculus Viewer, that can modify any facial images to homunculus-like faces with sensitivity parameters. The software was employed to support children and adults in understanding the cortical homunculus and the sensitivity differences of various body parts. Several workshops were held in which participants measured two-point discrimination thresholds at the forearm, lip and forehead to create a personalized homunculus. The software may contribute to user knowledge on the mechanisms of somatosensory perception in the brain of humans through their own embodied experience.

著者

宮本 道人 青山 一真

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誌 (ISSN:13426680)

巻号頁・発行日

vol.25, no.2, pp.50-51, 2020-06-30 (Released:2021-03-04)

著者

渡邊 淳司 川口 ゆい 坂倉 杏介 安藤 英由樹

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.16, no.3, pp.303-306, 2011-09-30 (Released:2017-02-01)

参考文献数

11

被引用文献数

3

---

You don't usually care about your own heartbeats, unless you are in a specific situation such as when getting nervous or injured. In the workshop your heartbeats are externalized with a concise system, which is composed of a vibration speaker and stethoscope. Heartbeat sounds taken by the stethoscope are sent to the vibration speaker via information processing circuit, and the system enables you to hear and touch states of your own heartbeats, and to exchange them with others. This workshop is aimed to provide a gut feeling of living self. The current paper describes the concept of workshop, and reports the participants' comments.

著者

三武 裕玄

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誌 (ISSN:13426680)

巻号頁・発行日

vol.25, no.4, pp.46, 2020-12-31 (Released:2021-02-03)

著者

大山 英明 前田 太郎 舘 [ススム]

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.7, no.1, pp.59-68, 2002

参考文献数

78

被引用文献数

2

---

Telexistence, tele-existence, or telepresence, is an advanced form of teleoperation, which enables a human operator to remotely perform tasks with dexterity, providing the user with the feeling that he or she is present in the remote location. Although tele-existence/telepresence as an engineering concept was proposed in 1979-1981, a comic titled " Jumborg A " proposed and illustrated a primitive tele-existence robot control system in 1970. As a matter of fact, some fictitious robot control systems in novels, comics, animations, and movies precede real robot control systems. In this paper, we will introduce the history of telexistence robots, both in terms of current technology and science fiction

著者

伊藤 雄一 石原 好貴 白井 僚 藤田 和之 高嶋 和毅 尾上 孝雄

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.4, pp.384-393, 2020-12-25 (Released:2020-12-25)

参考文献数

29

---

We propose StickyTouch, a novel tactile display that represents an adhesive information. This adhesive surface is capable of manipulating the degree of adhesion, enabling new kinds of interactions such as attaching and detaching the user’s fingers. Adhesion control is achieved with a temperature sensitive adhesive sheet whose temperature is locally controlled by Peltier devices arranged in a grid. In this paper, we describe the details of principle and system design of StickyTouch, and discuss the implementation of a proof-of-concept prototype with 64 Peltier devices with an adhesive size of 150×150 mm. We conduct several experiments on adhesion perception when touching and swiping on the display surface to evaluate the performance of StickyTouch. Finally, we discuss the applications for touch and swipe and our future prospects.

著者

上田 祐也 清水 祐一郎 坂口 明 坂本 真樹

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.4, pp.455-463, 2013-12-31 (Released:2017-02-01)

被引用文献数

4

---

In medical interviews, Japanese patients often use onomatopoeia such as "zuki-zuki" and "gan-gan" to express their pains or medical conditions. Using onomatopoeia when expressing pain enables simpler and more direct expressions than normal language as well as expresses the quantity (level/intensity) and quality (location/depth) of the pain. However, the subtle differences in characteristics of pain (such as quality), for example between "zeh-zeh" and "zero-zero", are difficult to grasp accurately. Although grasping these differences accurately is said to be critical, it depend on the level of skill of a doctor. So in this study, we constructed a system which supports communication between patients and doctors by evaluating meanings expressed by onomatopoeia. When a user inputs Japanese onomatopoeia, our system estimates quantities and qualities of pains using the relationships between the sounds used in the onomatopoeia and meanings expressed by 35 rating scales such as "sharp - dull", "strong - weak", and "deep - shallow". Visualizing of pains will help to compare between conventional onomatopoeic words such as "zeh-zeh" and novel words such as "zero-zero".

著者

盛川 浩志 太田 文也 金 相賢 河合 隆史

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.4, pp.617-625, 2016 (Released:2017-02-01)

参考文献数

12

---

This paper reports on the effect of the physical state of the body on touch sensations caused by collisions with virtual objects. The collision of a virtual object with a user's body in a virtual environment may cause an illusory touch, or haptic, sensation. We hypothesize that a real-world touch sensation of moving air on skin may augment an illusory touch sensation created by the visual representation of a collision with an object in a virtual scene. To assess this hypothesis, we performed experiments evaluating touch sensation in three conditions: with the user's body covered, with the user's body uncovered, and when blowing air onto the user. Our results showed that a touch sensation was strongly induced in the condition where the user's body was uncovered. Furthermore, the effect of blowing air onto the user differed depending on the body part that was stimulated and the representation of the virtual object. These results suggest that the top-down and bottom-up information for illusory touch sensation such as the user's physical state and the touch sensation of the air on skin had affected each other.

著者

神谷 知樹 梶本 裕之 佐藤 克成 柳田 康幸

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.359-368, 2017 (Released:2017-09-30)

参考文献数

15

---

It has been reported that haptic perception ability is diminished by wearing gloves and other clothing. To resolve this problem, we propose a transmission system of haptic information that consists of a haptic sensor on the surface of the clothing and a haptic display between the clothing and the skin. Using this system, haptic information is transmitted as if it penetrated the clothing. We named this concept “Haptic-Through”, and the system having this function “Haptic-Through Systems” collectively. In this paper, as an example of Haptic-Through Systems, we implemented and evaluate a finger-mounted Haptic-Through System.

著者

鳴海 拓志 赤川 智洋 ソン ヨンア 谷川 智洋 桐山 孝司 廣瀬 通孝

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.347-356, 2010-09-30 (Released:2017-02-01)

参考文献数

30

---

In this paper, we proposed the concept to control human behavior implicitly by presenting environmental information and developed the method to control the position of people by presenting thermal sensation personally through wearable devices depending on their location. We made an artwork "Thermotaxis: defined" by using the method. In this artwork, the space is characterized as being cool or warm. Users experience the difference in temperatures while they walk in the space. We proved that the presented thermal sensation influences standing position in a space and walk trajectory based on monitoring behavior of users. Moreover we made an artwork "Thermotaxis: society" based on the knowledge obtained from the user behavior analysis. "Thermotaxis: society" is a system that creates thermal sensory spots around people. Thermal sensory spots are generated based on the knowledge of proxemics and it encourage people to gather together and come in personal distance to increase the potential for social interactions. We suggested that the presented thermal sensation has a potential to control not only standing position but also psychological aspect such as psychological resistance.

著者

金子 拓史 ヤェム ヴィボル 池井 寧

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.2, pp.143-152, 2019 (Released:2019-06-30)

参考文献数

24

---

We aimed to generate a walking sensation for a person who just sits on a chair. We considered that, such a virtual walking method allows a local person to experience the performances of other person or a robot who being at the remote area. In this study, we proposed a method of using tendon electrical stimulation combined with kinesthetic sensation on the lower limbs for providing high realistic sensation of walking. We developed a system that can present multisensory stimuli of visual image, kinesthetic and electrical pulses. Electrodes were placed on both the Achilles tendons and the tibialis anterior tendons of the lower limbs. We preliminarily investigated the placement of the electrodes at the lower limbs in terms of sensation of tension to select the appropriate location. We also investigated the sensation of translational motion and the sensation of walking when visual stimulation and electrical/kinesthetic stimulation were presented to the lower limbs. The result of the subjective rating indicated that kinesthetic stimulation could generate the sensations of translational motion and walking. Furthermore, tendon electrical stimulation could enhance these sensations to create more realistic experience.

著者

多田隈 理一郎 多田隈 建二郎 横井 一仁

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.13, no.4, pp.429-438, 2008

---

In this research, we propose the analysis method of visual and haptic information flow in human central nervous system by using a wearable haptic display for hairy skin of human arm. This display can produce haptic stimulation on the hairy skin of human arm by using DC motors. In the evaluation experiment, we used the virtual reality system with physical mass-spring-damper calculation, and controlled virtual arm with mechanical haptic display and motion capture system.

著者

鈴木 克洋 中村 文彦 大塚 慈雨 正井 克俊 伊藤 勇太 杉浦 裕太 杉本 麻樹

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.379-389, 2017 (Released:2017-09-30)

参考文献数

17

---

The head-mounted displays (HMD) allow people to enjoy immersive VR experience. A virtual avatar can be the representative of a user in the virtual environment. However, the expression of the virtual avatar with a HMD user is constrained. A major problem of wearing an HMD is that a large portion of one's face is occluded, making facial recognition difficult in an HMD-based virtual environment. To overcome this problem, we propose a facial expression mapping technology using retro-reflective photoelectric sensors. The sensors attached inside the HMD measures the distance between sensors and a face. The distance values of five basic facial expressions (Neutral, Happy, Angry, Surprised, and Sad) are used for training the neural network to estimate the facial expression of a user. Our system can also reproduce facial expression change in real-time through an existing avatar by using regression.

著者

仲野 潤一 大澤 壮平 鳴海 拓志 谷川 智洋 廣瀬 通孝

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.2, pp.241-250, 2017 (Released:2017-06-30)

参考文献数

11

---

Examining an old photograph at the exact location where it was captured helps understanding the photograph deeply. We developed an AR application for mobile devices designed to provide a virtual experience of past scenery by superimposing old photographs on current landscapes. We introduced the application to a walking guided tour. Designing a route of walking guided tour and authoring AR contents shown on the tour was done collaboratively with us and tour guides. The tour titled ” Travel around Fukagawa at the time of last olympic, 1964” took place in Koto city, Tokyo with 12 participants. The tour was planned for 1.5 hour tour and it had 13 old photographs. This paper describes implementation of the application, design process of a walking guided tour, and feedback of the tour from both participants and guides.

著者

佐野 祐士 佐藤 晃矢 白石 僚一郎 大槻 麻衣

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.493-502, 2017 (Released:2017-12-31)

参考文献数

35

---

We focused on the effect that applying visual and haptic stimuli reduce the task load of situation awareness during a ball game, and we hypothesized that as a result, they also reduce the number of misplays. We developed the system which can provide the visual and haptic stimuli for supporting 3-on-3 soccer game in real-time; for visual stimuli, the position relationship of opponent players are shown, and for haptic stimuli, the position of opponent player who are in the out of view angle. Through the experiment we evaluated whether the visual and haptic stimuli can reduce the task load in a ball game. As a result, the proposed visual or haptic stimuli itself reduced the player's task load and improved the ball handling skill. On the other hand, we found that the combination of visual and haptic stimuli did not reduce the task load of player, and did not contribute to the reduction of misplay.

著者

檜山 敦 登嶋 健太 下河原 忠道 大武 美保子 関根 千佳

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

第22回日本バーチャルリアリティ学会大会

巻号頁・発行日

2017-08-21

著者

松嵜 直幸 原澤 賢充 繁桝 博昭 森田 寿哉 伊藤 崇之 齊藤 隆弘 佐藤 隆夫 相澤 清晴 北崎 充晃

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.1, pp.41-44, 2010-03-31 (Released:2017-02-01)

参考文献数

5

---

This paper investigated the effects of active/passive viewing on the visually induced motion sickness. Participants wearing a Head-Mount-Display (HMD) searched a target character in random dots and other characters projected on a screen using a video camera moved by them (active viewing). They could see a part of the screen and the movies displayed via the HMD were recorded. When they saw the recorded movie later (passive viewing) through the HMD, they felt motion sickness worth than before. This suggests that passive viewing induced severer motion sickness than active viewing.

著者

渡邉 英徳 原田 真喜子 遠藤 秀一

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.307-314, 2010

被引用文献数

2

---

"Tuvalu Visualization Project" is a net art work on digital globe that tells the realities of remote place. This work has both the function as a photograph archive and as a communications platform. Our purpose was to create the chance for users of overlapping the event in remote place with daily life of users and re-interpreting it globally. To achieve such purposes, we made a visualization of the real state of affairs in Tuvalu with a digital globe, and added the pseudoand synchronous communications function to it. We think It will have the possibility of supporting the international contribution activity by the individual and nonprofit organization etc.