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Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry最新文献

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Improved third-person perspective: a solution reducing occlusion of the 3PP? 改进的第三人称视角:减少3PP遮挡的解决方案?
Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry Pub Date : 2008-12-08 DOI: 10.1145/1477862.1477902
Patrick Salamin, D. Thalmann, F. Vexo
{"title":"Improved third-person perspective: a solution reducing occlusion of the 3PP?","authors":"Patrick Salamin, D. Thalmann, F. Vexo","doi":"10.1145/1477862.1477902","DOIUrl":"https://doi.org/10.1145/1477862.1477902","url":null,"abstract":"Pre-existing researches [Salamin et al. 2006] showed that Third-Person Perspective (3PP) enhances user navigation in 3D virtual environments by reducing proprio-perception issues. Nevertheless, this approach has shown drawbacks related to occlusions and adaptation time. The perspective proposed in this paper - our Improved Third-Person Perspective (i-3PP) - does allow the user to see through his/her body in order to fix 3PP limitations like occlusions. As gamers prefer using 3PP for moving actions and the First-Person Perspective (1PP) for fine operations, we verify if this behavior is extensible to simulations in augmented and virtual reality. Finally we check if the i-3PP would be preferred to the other perspectives for any action.","PeriodicalId":182702,"journal":{"name":"Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133525487","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: 21
Vision-based 3D finger interactions for mixed reality games with physics simulation 基于视觉的3D手指交互与物理模拟混合现实游戏
Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry Pub Date : 2008-12-08 DOI: 10.1145/1477862.1477871
Peng Song, Hang Yu, S. Winkler
{"title":"Vision-based 3D finger interactions for mixed reality games with physics simulation","authors":"Peng Song, Hang Yu, S. Winkler","doi":"10.1145/1477862.1477871","DOIUrl":"https://doi.org/10.1145/1477862.1477871","url":null,"abstract":"Mixed reality applications can provide users with enhanced interaction experiences by integrating virtual and real world objects in a mixed environment. Through the mixed reality interface, a more realistic and immersive control style is achieved compared to the traditional keyboard and mouse input devices. The interface proposed in this paper consists of a stereo camera, which tracks the user's hands and fingers robustly and accurately in the 3D space. To enable a physically realistic experience in the interaction, a physics engine is adopted for the simulating the physics of virtual object manipulation. The objects can be picked up and tossed with physical characteristics, such as gravity and collisions which occur in the real world. Detection and interaction in our system is fully computer-vision based, without any markers or additional sensors. We demonstrate this gesture-based interface using two mixed reality game implementations: finger fishing, in which a player can simulate fishing for virtual objects with his/her fingers as in a real environment, and Jenga, which is a simulation of the well-known tower building game. A user study is conducted and reported to demonstrate the accuracy, effectiveness and comfort of using this interactive interface.","PeriodicalId":182702,"journal":{"name":"Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry","volume":"5099 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123526224","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: 47
Dynamic display of 3D objects in real and virtual spaces with computer-generated holography 用计算机生成的全息技术动态显示真实和虚拟空间中的三维物体
Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry Pub Date : 2008-12-08 DOI: 10.1145/1477862.1477864
Xuewu Xu, S. Solanki, Xinan Liang, Shuhong Xu, Ridwan Bin Adrian Tanjung, Yuechao Pan, F. Farbiz, Baoxi Xu, T. Chong
{"title":"Dynamic display of 3D objects in real and virtual spaces with computer-generated holography","authors":"Xuewu Xu, S. Solanki, Xinan Liang, Shuhong Xu, Ridwan Bin Adrian Tanjung, Yuechao Pan, F. Farbiz, Baoxi Xu, T. Chong","doi":"10.1145/1477862.1477864","DOIUrl":"https://doi.org/10.1145/1477862.1477864","url":null,"abstract":"In this paper a new holographic 3D display system based on computer-generated hologram (CGH) is developed for the reconstruction of 3D objects. A new algorithm is also developed to reduce the hologram computation time and memory usage. The dynamic 3D objects are successfully reconstructed at video rates in both real and virtual spaces.","PeriodicalId":182702,"journal":{"name":"Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131310842","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
Generalized hierarchical NURBS for interactive shape modification 交互式形状修改的广义层次NURBS
Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry Pub Date : 2008-12-08 DOI: 10.1145/1477862.1477894
Wenyu Chen, Yiyu Cai, Jianmin Zheng
{"title":"Generalized hierarchical NURBS for interactive shape modification","authors":"Wenyu Chen, Yiyu Cai, Jianmin Zheng","doi":"10.1145/1477862.1477894","DOIUrl":"https://doi.org/10.1145/1477862.1477894","url":null,"abstract":"In a three dimensional (3D) environment, having the capability of local shape refinement and modification is highly desired for interactive free-form shape design. The introduction of hierarchical B-spline has provided a nice mechanism to control the influence of refinement to the locality for tensor-product B-spline surfaces. This paper extends the idea of hierarchical B-splines to non-uniform rational B-spline (NURBS) surface and a generalized hierarchical NURBS (H-NURBS) is proposed. Based on the modification of control points or weights of the H-NURBS surface, we can paste a NURBS surface onto an existing H-NURBS surface. Two approaches with different mechanisms are proposed: the base plus detail mechanism and the replacement mechanism. Different kinds of interactive devices like mouse, stylus and glove can be used to manipulate the H-NURBS.","PeriodicalId":182702,"journal":{"name":"Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134333324","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
Visual immersive haptic rendering on the web 在网络上的视觉沉浸式触觉渲染
Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry Pub Date : 2008-12-08 DOI: 10.1145/1477862.1477890
A. Sourin, Lei Wei
{"title":"Visual immersive haptic rendering on the web","authors":"A. Sourin, Lei Wei","doi":"10.1145/1477862.1477890","DOIUrl":"https://doi.org/10.1145/1477862.1477890","url":null,"abstract":"We propose how to define complex geometry, appearance and tangible physical properties of the X3D and VRML objects using mathematical functions straight in the scene definition code or in loadable libraries. We can also touch and feel surfaces of X3D and VRML objects as well as convert them to solid tangible objects. We can define tangible density and force fields associated with standard and function-defined geometries. Since the function-defined models are small in size, it is possible to perform their collaborative interactive modifications with concurrent synchronous visualization at each client computer with any required level of detail. We illustrate this concept with several application examples based on our plug-in to X3D and VRML browser.","PeriodicalId":182702,"journal":{"name":"Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132541501","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
Free viewpoint image reconstruction from multiple differently focused images and its implementation by CELL-based computing 多幅不同聚焦图像的自由视点图像重建及其基于cell计算的实现
Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry Pub Date : 2008-12-08 DOI: 10.1145/1477862.1477915
Hiroki Yonezawa, T. Hamamoto, K. Kodama
{"title":"Free viewpoint image reconstruction from multiple differently focused images and its implementation by CELL-based computing","authors":"Hiroki Yonezawa, T. Hamamoto, K. Kodama","doi":"10.1145/1477862.1477915","DOIUrl":"https://doi.org/10.1145/1477862.1477915","url":null,"abstract":"This paper deals with the CELL-based distributed processing for generating free viewpoint images by merging multiple differently focused images. We previously proposed the method of generating free viewpoint images without any depth estimation. However, it is not so easy to realize real-time image reconstruction based on our previous method. In this paper, we discuss the method to reduce the processing time by dimension reduction for image filtering and CELL-based distributed processing. Especially, the method of high-speed image reconstruction by the CELL processor on SONY PLAYSTATION3 is described in detail. We show some experimental results by using real images.","PeriodicalId":182702,"journal":{"name":"Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128425772","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
Using pluggable procedures and ontology to realize semantic virtual environments 2.0 使用可插拔程序和本体实现语义虚拟环境2.0
Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry Pub Date : 2008-12-08 DOI: 10.1145/1477862.1477898
Yu-Lin Chu, Tsai-Yen Li
{"title":"Using pluggable procedures and ontology to realize semantic virtual environments 2.0","authors":"Yu-Lin Chu, Tsai-Yen Li","doi":"10.1145/1477862.1477898","DOIUrl":"https://doi.org/10.1145/1477862.1477898","url":null,"abstract":"Allowing users to design animation procedures and share their designs with other users is a crucial function for creating personalized 3D avatar behaviors on multi-user virtual environments (MUVE's). By describing the ontology of the virtual objects in the environment to animation procedures, we allow these procedures to create customized animations for an avatar to interact with the environment or other avatars. In this paper, we attempt to realize a semantic virtual environment (SVE) in our MUVE system (called IMNET) with the concept of web 2.0 through three mechanisms: dynamical installation of animation procedures, ontology design of semantic description for virtual objects and avatars, and interaction-oriented message delivery. Based on our demonstrative applications, we have designed example semantics for the objects in the virtual world by the use of ontology. We have used two application scenarios about automatic generation of navigation path and casual interactions between users to illustrate the potential of creating sharable rich contents in a semantic virtual environment.","PeriodicalId":182702,"journal":{"name":"Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133590562","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
Collaborative design in 3D space 三维空间协同设计
Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry Pub Date : 2008-12-08 DOI: 10.1145/1477862.1477900
Yan Shen, S. Ong, A. Nee
{"title":"Collaborative design in 3D space","authors":"Yan Shen, S. Ong, A. Nee","doi":"10.1145/1477862.1477900","DOIUrl":"https://doi.org/10.1145/1477862.1477900","url":null,"abstract":"This paper presents a collaborative design environment based on Augmented Reality (AR) in supporting design activities among the members of a multi-disciplinary team. With virtual information augmented onto the real scene, an intuitive interface is provided to the distributed users. In the augmented design environment, the users wearing look-around head-mounted devices can move around to view the same spatially aligned part from different perspectives. In addition, manipulations, such as rotating, zooming and translating in one view will not interfere with the manipulations in the other views. While the users have their own personal views, the product models are kept consistent in all the views. To support accurate product design in the augmented design environment, grid-and-snap modes have been developed to facilitate the selection of 3D points and the modifications of features. The user can observe the effects of the design changes in real-time as the modifications are being made in 3D space.","PeriodicalId":182702,"journal":{"name":"Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry","volume":"36 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132738065","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: 14
Lens distortion correction using a checkerboard pattern 镜头畸变校正使用棋盘图案
Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry Pub Date : 2008-12-08 DOI: 10.1145/1477862.1477917
Seok-Han Lee, Jae-Young Lee, Jongsoo Choi
{"title":"Lens distortion correction using a checkerboard pattern","authors":"Seok-Han Lee, Jae-Young Lee, Jongsoo Choi","doi":"10.1145/1477862.1477917","DOIUrl":"https://doi.org/10.1145/1477862.1477917","url":null,"abstract":"In many AR applications, 2D-3D projective mapping is usually modeled with the linear pin-hole camera model. However, the images of real cameras suffer from lens distortion. We present a method to correct the radial distortion caused by camera lens. As the radial distortion correction is achieved via a non-iterative process, the proposed method is computationally efficient and very fast. The accuracy and robustness of the proposed system are verified on the experimental results of several indoor and outdoor images.","PeriodicalId":182702,"journal":{"name":"Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132760609","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
Integration of laptop sudden motion sensor as accelerometric control for virtual environments 集成笔记本电脑突发运动传感器作为虚拟环境的加速度控制
Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry Pub Date : 2008-12-08 DOI: 10.1145/1477862.1477911
Michael Cohen
{"title":"Integration of laptop sudden motion sensor as accelerometric control for virtual environments","authors":"Michael Cohen","doi":"10.1145/1477862.1477911","DOIUrl":"https://doi.org/10.1145/1477862.1477911","url":null,"abstract":"We have developed a gestural controller for a multimodal client suite using a sudden motion sensor (SMS) deployed with many modern laptop computers. Interpreted commands inferred from the SMS accelerometer can be used to adjust position---orientation and location---of egocentric perspectives and exocentric avatars to control panoramic browsing and spatialized sound, adjusting the lateralization, directionalization, and spatialization of musical and audio channels.","PeriodicalId":182702,"journal":{"name":"Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121716212","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: 6
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