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Tangible 3D: hand gesture interaction for immersive 3D modeling 有形3D:手势交互沉浸式3D建模
International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments Pub Date : 2005-10-06 DOI: 10.2312/EGVE/IPT_EGVE2005/191-199
Hyosun Kim, Georgia Albuquerque, Sven Havemann, D. Fellner
{"title":"Tangible 3D: hand gesture interaction for immersive 3D modeling","authors":"Hyosun Kim, Georgia Albuquerque, Sven Havemann, D. Fellner","doi":"10.2312/EGVE/IPT_EGVE2005/191-199","DOIUrl":"https://doi.org/10.2312/EGVE/IPT_EGVE2005/191-199","url":null,"abstract":"Most of all interaction tasks relevant for a general three-dimensional virtual environment can be supported by 6DOF control and grab/select input. Obviously a very efficient method is direct manipulation with bare hands, like in real environment. This paper shows the possibility to perform non-trivial tasks using only a few well-known hand gestures, so that almost no training is necessary to interact with 3D-softwares. Using this gesture interaction we have built an immersive 3D modeling system with 3D model representation based on a mesh library, which is optimized not only for real-time rendering but also accommodates for changes of both vertex positions and mesh connectivity in real-time. For performing the gesture interaction, the user's hand is marked with just four fingertipthimbles made of inexpensive material as simple as white paper. Within our scenario, the recognized hand gestures are used to select, create, manipulate and deform the meshes in a spontaneous and intuitive way. All modeling tasks are performed wirelessly through a camera/vision tracking method for the head and hand interaction.","PeriodicalId":210571,"journal":{"name":"International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115791981","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}
引用次数: 41
Real-time deformation of detailed geometry based on mappings to a less detailed physical simulation on the GPU 基于映射到GPU上不太详细的物理模拟的详细几何的实时变形
International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments Pub Date : 2005-10-06 DOI: 10.2312/EGVE/IPT_EGVE2005/105-111
Jesper Mosegaard, T. Sørensen
{"title":"Real-time deformation of detailed geometry based on mappings to a less detailed physical simulation on the GPU","authors":"Jesper Mosegaard, T. Sørensen","doi":"10.2312/EGVE/IPT_EGVE2005/105-111","DOIUrl":"https://doi.org/10.2312/EGVE/IPT_EGVE2005/105-111","url":null,"abstract":"Modern graphics processing units (GPUs) can be effectively used to solve physical systems. To use the GPU optimally, the discretization of the physical system is often restricted to a regular grid. When grid values represent spatial positions, a direct visualization can result in a jagged appearance. In this paper we propose to decouple computation and visualization of such systems. We define mappings that enable the deformation of a high-resolution surface based on a physical simulation on a lower resolution uniform grid. More specifically we investigate new approaches for the visualization of a GPU based spring-mass simulation.","PeriodicalId":210571,"journal":{"name":"International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116089698","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}
引用次数: 35
Reducing fragmentation in telecollaboration by using IPT interfaces 通过使用IPT接口减少远程协作中的碎片
International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments Pub Date : 2005-10-06 DOI: 10.2312/EGVE/IPT_EGVE2005/211-216
D. Roberts, Majda Al-Liabi, R. Wolff, Oliver Otto, A. Al-khalifah
{"title":"Reducing fragmentation in telecollaboration by using IPT interfaces","authors":"D. Roberts, Majda Al-Liabi, R. Wolff, Oliver Otto, A. Al-khalifah","doi":"10.2312/EGVE/IPT_EGVE2005/211-216","DOIUrl":"https://doi.org/10.2312/EGVE/IPT_EGVE2005/211-216","url":null,"abstract":"Telecommunication systems, such as AccessGrid, allow collaboration across a distributed team. However, these systems typically introduce fragmentation into the view of the shared environment. Many have found that IPT systems offer several important advantages above other display technologies in supporting distance working. This study focuses on fragmentation, which has previously been shown to induce problems in efficient object referencing within a shared virtual environment accessed through desktop displays. We have attempted to repeat the experiment while varying the display type. The results reinforce previous studies by showing a significant improvement in task performance when the entire team uses IPT displays. We further show that the improvement is unlikely to come in this case from more natural interaction or navigation and thus postulate that it arises from more efficient mutual orientation towards objects of interest, arising from a reduction in fragmentation.","PeriodicalId":210571,"journal":{"name":"International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116532894","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}
引用次数: 5
Low-cost, portable, multi-wall virtual reality 低成本，便携，多墙虚拟现实
International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments Pub Date : 2005-10-06 DOI: 10.2312/EGVE/IPT_EGVE2005/009-014
S. A. Miller, Noah J. Misch, Aaron Dalton
{"title":"Low-cost, portable, multi-wall virtual reality","authors":"S. A. Miller, Noah J. Misch, Aaron Dalton","doi":"10.2312/EGVE/IPT_EGVE2005/009-014","DOIUrl":"https://doi.org/10.2312/EGVE/IPT_EGVE2005/009-014","url":null,"abstract":"Virtual reality systems make compelling outreach displays, but some systems highly suitable for outreach, notably the CAVE, have design features that make using them for that purpose inconvenient. In the case of the CAVE, the equipment is difficult to disassemble, transport, and reassemble, and typically only large-budget research facilities can afford such a system.\u0000 We implemented a system like the CAVE that costs less than $30,000, weighs about 500 pounds, and fits into a fifteen-passenger van. A team of six people have unpacked, assembled, and calibrated the system in less than two hours.\u0000 This cost reduction versus similar virtual reality systems stems from the unique approach we took to stereoscopic projection. We used an assembly of optical chopper wheels and commodity LCD projectors to create true active stereo at less than a fifth of the cost of comparable active stereo technologies.\u0000 The screen and frame design also harbor portability optimizations; the frame assembles in minutes with only two fasteners, and both pack into small bundles for easy and secure shipment.","PeriodicalId":210571,"journal":{"name":"International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132533992","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}
引用次数: 10
Näprä: affordable fingertip tracking with ultrasound Näprä:价格实惠的指尖超声跟踪
International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments Pub Date : 2005-10-06 DOI: 10.2312/EGVE/IPT_EGVE2005/051-058
M. Reunanen, K. Palovuori, T. Ilmonen, Wille Mäkelä
{"title":"Näprä: affordable fingertip tracking with ultrasound","authors":"M. Reunanen, K. Palovuori, T. Ilmonen, Wille Mäkelä","doi":"10.2312/EGVE/IPT_EGVE2005/051-058","DOIUrl":"https://doi.org/10.2312/EGVE/IPT_EGVE2005/051-058","url":null,"abstract":"In this paper we present Näprä, a novel tracking device suitable for fine motor interaction. The motivation for building the device was the need to track users' fingertips in an immersive free-hand drawing environment. Such tracking offers significant benefits for fine-grained artwork. Out of the numerous tracking methods ultrasound was chosen because of its affordability and low computational requirements. The design and implementation of both the hardware and software are discussed in detail in their respective sections. The device was evaluated in practice by two user tests, the first involving ten professional artists and the latter seven ordinary users. The results obtained in the tests are presented to reader as well as some directions for future work.","PeriodicalId":210571,"journal":{"name":"International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117334768","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}
引用次数: 7
Augmented reality interaction for semiautomatic volume classification 用于半自动卷分类的增强现实交互
International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments Pub Date : 2005-10-06 DOI: 10.2312/EGVE/IPT_EGVE2005/113-120
Á. Río, J. Fischer, M. Köbele, D. Bartz, W. Straßer
{"title":"Augmented reality interaction for semiautomatic volume classification","authors":"Á. Río, J. Fischer, M. Köbele, D. Bartz, W. Straßer","doi":"10.2312/EGVE/IPT_EGVE2005/113-120","DOIUrl":"https://doi.org/10.2312/EGVE/IPT_EGVE2005/113-120","url":null,"abstract":"In the visualization of 3D medical data, the appropriateness of the achieved result is highly dependent on the application. Therefore, an intuitive interaction with the user is of utter importance in order to determine the particular aim of the visualization. In this paper, we present a novel approach for the visualization of 3D medical data with volume rendering combined with AR-based user interaction. The utilization of augmented reality (AR), with the assistance of a set of simple tools, allows the direct manipulation in 3D of the rendered data. The proposed method takes into account regions of interest defined by the user and employs this information to automatically generate an adequate transfer function. Machine learning techniques are utilized for the automatic creation of transfer functions, which are to be used during the classification stage of the rendering pipeline. The validity of the proposed approach for medical applications is illustrated.","PeriodicalId":210571,"journal":{"name":"International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122760460","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}
引用次数: 9
Feature tracking in VR for cumulus cloud life-cycle studies 在VR特征跟踪的积云生命周期研究
International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments Pub Date : 2005-10-06 DOI: 10.2312/EGVE/IPT_EGVE2005/121-128
E. J. Griffith, F. Post, M. Koutek, T. Heus, H. Jonker
{"title":"Feature tracking in VR for cumulus cloud life-cycle studies","authors":"E. J. Griffith, F. Post, M. Koutek, T. Heus, H. Jonker","doi":"10.2312/EGVE/IPT_EGVE2005/121-128","DOIUrl":"https://doi.org/10.2312/EGVE/IPT_EGVE2005/121-128","url":null,"abstract":"Feature tracking in large data sets is traditionally an off-line, batch processing operation while virtual reality typically focuses on highly interactive tasks and applications. This paper presents an approach that uses a combination of off-line preprocessing and interactive visualization in VR to simplify and speed up the identification of interesting features for further study. We couch the discussion in terms of our collaborative research on using virtual reality for cumulus cloud life-cycle studies, where selecting suitable clouds for study is simple for the skilled observer but difficult to formalize. The preprocessing involves identifying individual clouds within the data set through a 4D connected components algorithm, and then saving isosurface, bounding box, and volume information. This information is then interactively visualized in our VR Cloud Explorer with various tools and information displays to identify the most interesting clouds. In a small pilot study, reasonable performance, both in the preprocessing phase and the visualization phase, has been measured.","PeriodicalId":210571,"journal":{"name":"International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114808047","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}
引用次数: 12
Optical tracking and calibration of tangible interaction devices 有形交互装置的光学跟踪与校准
International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments Pub Date : 2005-10-06 DOI: 10.2312/EGVE/IPT_EGVE2005/041-050
A. V. Rhijn, J. D. Mulder
{"title":"Optical tracking and calibration of tangible interaction devices","authors":"A. V. Rhijn, J. D. Mulder","doi":"10.2312/EGVE/IPT_EGVE2005/041-050","DOIUrl":"https://doi.org/10.2312/EGVE/IPT_EGVE2005/041-050","url":null,"abstract":"In this paper, a novel optical tracking and object calibration system is presented for the recognition and pose estimation of tangible interaction devices for virtual and augmented reality systems. The calibration system allows a user to automatically generate models of the relative positions of point-shaped markers attached to interaction devices, simply by moving them in front of the cameras. There are virtually no constraints on the shape of interaction devices. The tracking method takes the calibrated models as input, and recognizes devices by subgraph matching. Both the calibration and tracking methods can handle partial occlusion. Results show the proposed techniques are efficient, accurate, and robust.","PeriodicalId":210571,"journal":{"name":"International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122529301","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}
引用次数: 24
Language learning in virtual environments: 'bobo and apples' 虚拟环境中的语言学习:“波波和苹果”
International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments Pub Date : 2005-10-06 DOI: 10.2312/EGVE/IPT_EGVE2005/141-145
H. Holmen, F. Nielsen
{"title":"Language learning in virtual environments: 'bobo and apples'","authors":"H. Holmen, F. Nielsen","doi":"10.2312/EGVE/IPT_EGVE2005/141-145","DOIUrl":"https://doi.org/10.2312/EGVE/IPT_EGVE2005/141-145","url":null,"abstract":"'Bobo and Apples' is one of the prototype games within SAME4KIDS (Speech-based,Animated, Multilingual,Educational games for Kids, http://same4kids.sourceforge.net/), a multi-language and multi-purpose games project for young kids of age 3-5 years. The main goal of SAME4KIDS is to expose young learners to multi-module games in various available platforms. In the prototype of 'Bobo and Apples', the game is designed to teach multiple languages and simple math within a frame of virtual environment, using mainly visual images, animation and sound. In this paper we introduce the main design concept and architecture for the prototype, as well as the envisioned VR conversion of the game, based on the Animarium system.","PeriodicalId":210571,"journal":{"name":"International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122810290","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}
引用次数: 0
Towards better quality in virtual environments 在虚拟环境中实现更好的质量
International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments Pub Date : 2005-10-06 DOI: 10.2312/EGVE/IPT_EGVE2005/223-224
F. Mannuß, André Hinkenjann
{"title":"Towards better quality in virtual environments","authors":"F. Mannuß, André Hinkenjann","doi":"10.2312/EGVE/IPT_EGVE2005/223-224","DOIUrl":"https://doi.org/10.2312/EGVE/IPT_EGVE2005/223-224","url":null,"abstract":"This paper describes the work done at our Lab to improve visual and other quality of Virtual Environments. To be able to achieve better quality we built a new Virtual Environments framework called basho. basho is a renderer independent VE framework. Although renderers are not limited to graphics renderers we first concentrated on improving visual quality. Independence is gained from designing basho to have a small kernel and several plugins.","PeriodicalId":210571,"journal":{"name":"International Conference on Artificial Reality and Telexistence and Eurographics Symposium on Virtual Environments","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121261845","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}
引用次数: 7
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