Virtual Reality (VR) training games have many potential benefits for autism spectrum disorder (ASD) therapy, such as increasing motivation and improving the abilities of performing daily living activities. Persons with ASD often have deficits in hand-eye coordination, which makes many activities of daily living difficult. A VR game that trains hand-eye coordination could help users with ASD improve their quality of life. Moreover, incorporating users' interests into the game could be a good way to build a motivating game for users with ASD. We propose a Customizable Virtual Human (CVH) which enables users with ASD to easily customize a virtual human and then interact with the CVH in a 3D task. Specifically, we investigated the effects of CVHs with a VR hand-eye coordination training game - Imagination Soccer - and conducted a user study on adolescents with high functioning ASD. We compared the differences of participants' 3D interaction performances, game performances and user experiences (i.e. presence, involvement, and flow) under CVH and Non-customizable Virtual Human (NCVH) conditions. The results indicate that CVHs could effectively improve performance in 3D interaction tasks (i.e., blocking a soccer ball) for users with ASD, motivate them to play the game more, and offer a better user experience.
{"title":"\"I Built It!\" — Exploring the effects of customizable virtual humans on adolescents with ASD","authors":"Chao Mei, L. Mason, J. Quarles","doi":"10.1109/VR.2015.7223382","DOIUrl":"https://doi.org/10.1109/VR.2015.7223382","url":null,"abstract":"Virtual Reality (VR) training games have many potential benefits for autism spectrum disorder (ASD) therapy, such as increasing motivation and improving the abilities of performing daily living activities. Persons with ASD often have deficits in hand-eye coordination, which makes many activities of daily living difficult. A VR game that trains hand-eye coordination could help users with ASD improve their quality of life. Moreover, incorporating users' interests into the game could be a good way to build a motivating game for users with ASD. We propose a Customizable Virtual Human (CVH) which enables users with ASD to easily customize a virtual human and then interact with the CVH in a 3D task. Specifically, we investigated the effects of CVHs with a VR hand-eye coordination training game - Imagination Soccer - and conducted a user study on adolescents with high functioning ASD. We compared the differences of participants' 3D interaction performances, game performances and user experiences (i.e. presence, involvement, and flow) under CVH and Non-customizable Virtual Human (NCVH) conditions. The results indicate that CVHs could effectively improve performance in 3D interaction tasks (i.e., blocking a soccer ball) for users with ASD, motivate them to play the game more, and offer a better user experience.","PeriodicalId":231501,"journal":{"name":"2015 IEEE Virtual Reality (VR)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131920358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wesley Griffin, Danny Catacora, S. Satterfield, J. Bullard, J. Terrill
We have created an integrated interactive visualization and analysis environment that can be used immersively or on the desktop to study a simulation of microstructure development during hydration or degradation of cement pastes and concrete. Our environment combines traditional 3D scientific data visualization with 2D information visualization using D3.js running in a web browser. By incorporating D3.js, our visualization allowed the scientist to quickly diagnose and debug errors in the parallel implementation of the simulation.
{"title":"Incorporating D3.js information visualization into immersive virtual environments","authors":"Wesley Griffin, Danny Catacora, S. Satterfield, J. Bullard, J. Terrill","doi":"10.1109/VR.2015.7223358","DOIUrl":"https://doi.org/10.1109/VR.2015.7223358","url":null,"abstract":"We have created an integrated interactive visualization and analysis environment that can be used immersively or on the desktop to study a simulation of microstructure development during hydration or degradation of cement pastes and concrete. Our environment combines traditional 3D scientific data visualization with 2D information visualization using D3.js running in a web browser. By incorporating D3.js, our visualization allowed the scientist to quickly diagnose and debug errors in the parallel implementation of the simulation.","PeriodicalId":231501,"journal":{"name":"2015 IEEE Virtual Reality (VR)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133923967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Özacar, Takuma Hagiwara, Jiawei Huang, Kazuki Takashima, Y. Kitamura
We propose Coupled-clay, a bi-directional 3D collaborative interactive environment that supports the 3D modeling work between groups of users at remote locations. Coupled-clay consists of two network-connected workspaces, the Physical Interaction Space and the Virtual Interaction Space. The physical interaction space allows a user to directly manipulate a physical object whose shape and position are precisely tracked. This tracked 3D information is transferred to the virtual interaction space in real time. The virtual interaction space is made of an interactive multi-user stereoscopic 3D tabletop, or other 3D displays with adequate interaction device. The users at the virtual interaction space observe the virtual 3D object which corresponds to the physical object and manipulate its geometrical attributes (e.g., translation, rotation and scaling). Additionally, they can control the graphical attributes of the virtual object such as color and texture. Information about changes in geometrical and graphical attributes are sent back to the physical interaction space in real time and reflected to the object in the physical interaction space by a robotic arm and a top-mounted projector. Coupled-clay can be used to remotely collaborate on 3D modeling tasks such as between a skilled designer and novice learners. This paper details our Coupled-clay implementation and presents its interaction capabilities.
{"title":"Coupled-clay: Physical-virtual 3D collaborative interaction environment","authors":"K. Özacar, Takuma Hagiwara, Jiawei Huang, Kazuki Takashima, Y. Kitamura","doi":"10.1109/VR.2015.7223392","DOIUrl":"https://doi.org/10.1109/VR.2015.7223392","url":null,"abstract":"We propose Coupled-clay, a bi-directional 3D collaborative interactive environment that supports the 3D modeling work between groups of users at remote locations. Coupled-clay consists of two network-connected workspaces, the Physical Interaction Space and the Virtual Interaction Space. The physical interaction space allows a user to directly manipulate a physical object whose shape and position are precisely tracked. This tracked 3D information is transferred to the virtual interaction space in real time. The virtual interaction space is made of an interactive multi-user stereoscopic 3D tabletop, or other 3D displays with adequate interaction device. The users at the virtual interaction space observe the virtual 3D object which corresponds to the physical object and manipulate its geometrical attributes (e.g., translation, rotation and scaling). Additionally, they can control the graphical attributes of the virtual object such as color and texture. Information about changes in geometrical and graphical attributes are sent back to the physical interaction space in real time and reflected to the object in the physical interaction space by a robotic arm and a top-mounted projector. Coupled-clay can be used to remotely collaborate on 3D modeling tasks such as between a skilled designer and novice learners. This paper details our Coupled-clay implementation and presents its interaction capabilities.","PeriodicalId":231501,"journal":{"name":"2015 IEEE Virtual Reality (VR)","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131558055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Individuals tend to find realistic walking speeds too slow when relying on treadmill walking or Walking-In-Place (WIP) techniques for virtual travel. This paper details three studies investigating the effects of visual display properties and gain presentation mode on the perceived naturalness of virtual walking speeds: The first study compared three different degrees of peripheral occlusion; the second study compared three different degrees of perceptual distortion produced by varying the geometric field of view (GFOV); and the third study compared three different ways of presenting visual gains. All three studies compared treadmill walking and WIP locomotion. The first study revealed no significant main effects of peripheral occlusion. The second study revealed a significant main effect of GFOV, suggesting that the GFOV size may be inversely proportional to the degree of underestimation of the visual speed. The third study found a significant main effect of gain presentation mode. Allowing participants to interactively adjust the gain led to a smaller range of perceptually natural gains and this approach was significantly faster. However, the efficiency may come at the expense of confidence. Generally the lower and upper bounds of the perceptually natural speeds were higher for treadmill walking than WIP. However, not all differences were statistically significant.
{"title":"The effect of visual display properties and gain presentation mode on the perceived naturalness of virtual walking speeds","authors":"N. C. Nilsson, S. Serafin, R. Nordahl","doi":"10.1109/VR.2015.7223328","DOIUrl":"https://doi.org/10.1109/VR.2015.7223328","url":null,"abstract":"Individuals tend to find realistic walking speeds too slow when relying on treadmill walking or Walking-In-Place (WIP) techniques for virtual travel. This paper details three studies investigating the effects of visual display properties and gain presentation mode on the perceived naturalness of virtual walking speeds: The first study compared three different degrees of peripheral occlusion; the second study compared three different degrees of perceptual distortion produced by varying the geometric field of view (GFOV); and the third study compared three different ways of presenting visual gains. All three studies compared treadmill walking and WIP locomotion. The first study revealed no significant main effects of peripheral occlusion. The second study revealed a significant main effect of GFOV, suggesting that the GFOV size may be inversely proportional to the degree of underestimation of the visual speed. The third study found a significant main effect of gain presentation mode. Allowing participants to interactively adjust the gain led to a smaller range of perceptually natural gains and this approach was significantly faster. However, the efficiency may come at the expense of confidence. Generally the lower and upper bounds of the perceptually natural speeds were higher for treadmill walking than WIP. However, not all differences were statistically significant.","PeriodicalId":231501,"journal":{"name":"2015 IEEE Virtual Reality (VR)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134191844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Desktop haptic device has been developed in the field of rehabilitation and entertainment. However, the desktop type restrains human's movement. Therefore, it is difficult to receive force sense information, moving to wide range position and posture. In this study, we developed a 1-DOF wearable haptic device with pneumatic artificial muscles and a MR brake. These smart actuators have high power density and change its output force structurally. Therefore, this haptic device can render various force sense such as elasticity, friction and viscosity. In this abstract, we describe two experiments rendering elasticity and friction to evaluate the performance of the device.
{"title":"Development of a wearable haptic device with pneumatic artificial muscles and MR brake","authors":"Masakazu Egawa, Takumi Watanabe, Taro Nakamura","doi":"10.1109/VR.2015.7223351","DOIUrl":"https://doi.org/10.1109/VR.2015.7223351","url":null,"abstract":"Desktop haptic device has been developed in the field of rehabilitation and entertainment. However, the desktop type restrains human's movement. Therefore, it is difficult to receive force sense information, moving to wide range position and posture. In this study, we developed a 1-DOF wearable haptic device with pneumatic artificial muscles and a MR brake. These smart actuators have high power density and change its output force structurally. Therefore, this haptic device can render various force sense such as elasticity, friction and viscosity. In this abstract, we describe two experiments rendering elasticity and friction to evaluate the performance of the device.","PeriodicalId":231501,"journal":{"name":"2015 IEEE Virtual Reality (VR)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134373304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jean-Luc Lugrin, Maximilian Landeck, Marc Erich Latoschik
In this paper we present a preliminary study of the impact of avatar realism on illusion of virtual body ownership (IVBO), when using a full body virtual mirror for fitness training. We evaluated three main types of user representation: realistic and non-realistic avatars as well as no avatar at all. Our results revealed that same-gender realistic human avatar elicited a slightly higher level of illusion and performance. However qualitative analysis of open questions revealed that the feeling of power was higher with non-realistic strong-looking avatars.
{"title":"Avatar embodiment realism and virtual fitness training","authors":"Jean-Luc Lugrin, Maximilian Landeck, Marc Erich Latoschik","doi":"10.1109/VR.2015.7223377","DOIUrl":"https://doi.org/10.1109/VR.2015.7223377","url":null,"abstract":"In this paper we present a preliminary study of the impact of avatar realism on illusion of virtual body ownership (IVBO), when using a full body virtual mirror for fitness training. We evaluated three main types of user representation: realistic and non-realistic avatars as well as no avatar at all. Our results revealed that same-gender realistic human avatar elicited a slightly higher level of illusion and performance. However qualitative analysis of open questions revealed that the feeling of power was higher with non-realistic strong-looking avatars.","PeriodicalId":231501,"journal":{"name":"2015 IEEE Virtual Reality (VR)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133236302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Noriyuki Uda, Yoshitaka Kamiya, M. Endo, T. Yasuda
AR (Augmented Reality) technology, which uses actual landscape photography captured with a camera on-site as a base and then overlays virtual objects on that landscape image, is valid for landscape simulation. In this study, we generate nightscape images by superimposing high-luminance segments (virtual objects) over darkening landscape i ages. They are adjusted due to dark adaption modification. We found that the nightscape was evaluated more highly than the daytime landscape, and we were able to quantitatively confirm that evaluations were high for landscape in twilight after sundown.
{"title":"Landscape change from daytime to nighttime under augmented reality environment","authors":"Noriyuki Uda, Yoshitaka Kamiya, M. Endo, T. Yasuda","doi":"10.1109/VR.2015.7223414","DOIUrl":"https://doi.org/10.1109/VR.2015.7223414","url":null,"abstract":"AR (Augmented Reality) technology, which uses actual landscape photography captured with a camera on-site as a base and then overlays virtual objects on that landscape image, is valid for landscape simulation. In this study, we generate nightscape images by superimposing high-luminance segments (virtual objects) over darkening landscape i ages. They are adjusted due to dark adaption modification. We found that the nightscape was evaluated more highly than the daytime landscape, and we were able to quantitatively confirm that evaluations were high for landscape in twilight after sundown.","PeriodicalId":231501,"journal":{"name":"2015 IEEE Virtual Reality (VR)","volume":"54 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114121034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hyejin Kim, Elisabeth Adelia Widjojo, Jae-In Hwang
This paper presents a novel bare-hand interaction method for wearable AR (augmented reality). The suggested method is using hierarchical virtual buttons which are placed on the image target. Therefore, we can provide precise hand interaction on the image target surface (while using wearable AR). The method operates on a wearable AR system and uses an image target tracker to make occlusion-based interaction button. We introduce the hierarchical virtual button method which is adequate for more precise and faster interaction with augmented objects.
{"title":"Dynamic hierarchical virtual button-based hand interaction for wearable AR","authors":"Hyejin Kim, Elisabeth Adelia Widjojo, Jae-In Hwang","doi":"10.1109/VR.2015.7223368","DOIUrl":"https://doi.org/10.1109/VR.2015.7223368","url":null,"abstract":"This paper presents a novel bare-hand interaction method for wearable AR (augmented reality). The suggested method is using hierarchical virtual buttons which are placed on the image target. Therefore, we can provide precise hand interaction on the image target surface (while using wearable AR). The method operates on a wearable AR system and uses an image target tracker to make occlusion-based interaction button. We introduce the hierarchical virtual button method which is adequate for more precise and faster interaction with augmented objects.","PeriodicalId":231501,"journal":{"name":"2015 IEEE Virtual Reality (VR)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123895071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper we developed the free-viewpoint curved surface shape display, using the effect of visuo-haptic interaction. In our research, we aim to realize the simple mechanic visuo-haptic system with which we can touch various objects with our real hands. We proposed the free-viewpoint shape display system in which users can touch a virtual object with various shape through the tablet device, while walking around the object. The system figured the difference of shape between the real object and the virtual one from the current viewpoint, and calculates the amount of displacement of the touching hand image to fit to the virtual object, in real time. This modification of the movement of a hand image evokes the effect of the visuo-haptic interaction, and enable users to feel touching various shapes from various viewpoints, although actually users touch a physically static object.
{"title":"MagicPot360: Free viewpoint shape display modifying the perception of shape","authors":"Yuki Ban, Takuji Narumi, T. Tanikawa, M. Hirose","doi":"10.1109/VR.2015.7223425","DOIUrl":"https://doi.org/10.1109/VR.2015.7223425","url":null,"abstract":"In this paper we developed the free-viewpoint curved surface shape display, using the effect of visuo-haptic interaction. In our research, we aim to realize the simple mechanic visuo-haptic system with which we can touch various objects with our real hands. We proposed the free-viewpoint shape display system in which users can touch a virtual object with various shape through the tablet device, while walking around the object. The system figured the difference of shape between the real object and the virtual one from the current viewpoint, and calculates the amount of displacement of the touching hand image to fit to the virtual object, in real time. This modification of the movement of a hand image evokes the effect of the visuo-haptic interaction, and enable users to feel touching various shapes from various viewpoints, although actually users touch a physically static object.","PeriodicalId":231501,"journal":{"name":"2015 IEEE Virtual Reality (VR)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120953553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
TechViz has been a supporter of Formula Student at KIT for several years reflecting the companys long-term commitment to enhance engineering and education by providing students with powerful VR system software to connect curriculum to real-world applications. Incorporating immersive visualisation and interaction environment into Formula Student vehicle design is proven to deliver race day success, by helping to detect faults and optimise product life cycle. The TechViz LESC system helps to improve the car design despites the short limit of time, thanks to the direct visualisation in the VR system of the CAD mockup and the ease of usage for non-VR experts.
TechViz多年来一直是KIT Formula Student的支持者，这反映了该公司通过为学生提供强大的VR系统软件来将课程与现实世界的应用联系起来，从而提高工程和教育水平的长期承诺。将沉浸式可视化和交互环境整合到学生方程式赛车设计中，有助于检测故障并优化产品生命周期，从而在比赛日取得成功。尽管时间有限，但TechViz LESC系统有助于改进汽车设计，这要归功于CAD模型在VR系统中的直接可视化以及非VR专家的易用性。
{"title":"TechViz XL helps KITs Formula Student car “become alive”","authors":"B. Bayart, A. Vartanian, P. Häfner, J. Ovtcharova","doi":"10.1109/VR.2015.7223462","DOIUrl":"https://doi.org/10.1109/VR.2015.7223462","url":null,"abstract":"TechViz has been a supporter of Formula Student at KIT for several years reflecting the companys long-term commitment to enhance engineering and education by providing students with powerful VR system software to connect curriculum to real-world applications. Incorporating immersive visualisation and interaction environment into Formula Student vehicle design is proven to deliver race day success, by helping to detect faults and optimise product life cycle. The TechViz LESC system helps to improve the car design despites the short limit of time, thanks to the direct visualisation in the VR system of the CAD mockup and the ease of usage for non-VR experts.","PeriodicalId":231501,"journal":{"name":"2015 IEEE Virtual Reality (VR)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125276444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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