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Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology最新文献

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A perspective geometry approach to user-perspective rendering in hand-held video see-through augmented reality 手持视频透视增强现实中用户透视渲染的透视几何方法
Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology Pub Date : 2014-11-11 DOI: 10.1145/2671015.2671127
Ali Samini, K. L. Palmerius
{"title":"A perspective geometry approach to user-perspective rendering in hand-held video see-through augmented reality","authors":"Ali Samini, K. L. Palmerius","doi":"10.1145/2671015.2671127","DOIUrl":"https://doi.org/10.1145/2671015.2671127","url":null,"abstract":"Video see-through Augmented Reality (V-AR) displays a video feed overlaid with information, co-registered with the displayed objects. In this paper we consider the type of V-AR that is based on a hand-held device with a fixed camera. In most of the VA-R applications the view displayed on the screen is completely determined by the orientation of the camera, i.e., the device-perspective rendering; the screen displays what the camera sees. The alternative method is to use the relative pose of the user's view and the camera, i.e., the user-perspective rendering. In this paper we present an approach to the user perspective V-AR using 3D projective geometry. The view is adjusted to the user's perspective and rendered on the screen, making it an augmented window. We created and tested a running prototype based on our method.","PeriodicalId":93673,"journal":{"name":"Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology","volume":"49 2","pages":"207-208"},"PeriodicalIF":0.0,"publicationDate":"2014-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91494092","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: 13
Poxels: polygonal voxel environment rendering 像素:多边形体素环境渲染
Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology Pub Date : 2014-11-11 DOI: 10.1145/2671015.2671125
Mark Miller, Andrew Cumming, K. Chalmers, Benjamin Kenwright, Kenny Mitchell
{"title":"Poxels: polygonal voxel environment rendering","authors":"Mark Miller, Andrew Cumming, K. Chalmers, Benjamin Kenwright, Kenny Mitchell","doi":"10.1145/2671015.2671125","DOIUrl":"https://doi.org/10.1145/2671015.2671125","url":null,"abstract":"We present efficient rendering of opaque, sparse, voxel environments with data amplified in local graphics memory with stream-out from a geomery shader to a cached vertex buffer pool. We show that our Poxel rendering primitive aligns with optimized rasterization hardware and so results in high visual quality over ray casting methods. Lossless run length encoding of occlusion culled voxels and coordinate quantization further reduces host data transfers.","PeriodicalId":93673,"journal":{"name":"Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology","volume":"54 7","pages":"235-236"},"PeriodicalIF":0.0,"publicationDate":"2014-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91501830","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
ExpanD: a stereoscopic expanding technique for compound graphs 展开:复合图的立体展开技术
Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology Pub Date : 2014-11-11 DOI: 10.1145/2671015.2671124
Ragaad Altarawneh, S. Humayoun, A. Ebert
{"title":"ExpanD: a stereoscopic expanding technique for compound graphs","authors":"Ragaad Altarawneh, S. Humayoun, A. Ebert","doi":"10.1145/2671015.2671124","DOIUrl":"https://doi.org/10.1145/2671015.2671124","url":null,"abstract":"In this work, we present a new technique, called ExpanD, for expanding compound nodes in stereoscopic platforms. In this technique, stereoscopic depth is used to encode the structural relationships in compound graphs using the containment representation, while explicit edges are used to represent the adjacency relations between the graph nodes. Further, stereoscopic depth is used to show the parent-child relations in such a manner that the children level is rendered in a plane closer to the viewer than the parent node. The technique provides a novel interactive operation for expanding or contracting nodes in order to align graph nodes in the 3D space with minimum occlusion. Different visual cues are used together to encode other data aspects, e.g., color to encode node status, shape to encode node type, and stereoscopic depth to encode hierarchical relations between nodes.","PeriodicalId":93673,"journal":{"name":"Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology","volume":"1 1","pages":"223-224"},"PeriodicalIF":0.0,"publicationDate":"2014-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87314528","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
Data-driven sequential goal selection model for multi-agent simulation 多智能体仿真的数据驱动顺序目标选择模型
Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology Pub Date : 2014-11-11 DOI: 10.1145/2671015.2671024
Wenxi Liu, Zhe Huang, Rynson W. H. Lau, Dinesh Manocha
{"title":"Data-driven sequential goal selection model for multi-agent simulation","authors":"Wenxi Liu, Zhe Huang, Rynson W. H. Lau, Dinesh Manocha","doi":"10.1145/2671015.2671024","DOIUrl":"https://doi.org/10.1145/2671015.2671024","url":null,"abstract":"With recent advances in distributed virtual worlds, online users have access to larger and more immersive virtual environments. Sometimes the number of users in virtual worlds is not large enough to make the virtual world realistic. In our paper, we present a crowd simulation algorithm that allows a large number of virtual agents to navigate around the virtual world autonomously by sequentially selecting the goals. Our approach is based on our sequential goal selection model (SGS) which can learn goal-selection patterns from synthetic sequences. We demonstrate our algorithm's simulation results in complex scenarios containing more than 20 goals.","PeriodicalId":93673,"journal":{"name":"Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology","volume":"57 1","pages":"107-116"},"PeriodicalIF":0.0,"publicationDate":"2014-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86559347","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: 1
Natural 7DoF navigation & interaction in 3D geovisualisations 自然7DoF导航和交互在三维地理可视化
Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology Pub Date : 2014-11-11 DOI: 10.1145/2671015.2671131
S. Stannus, A. Lucieer, W. Fu
{"title":"Natural 7DoF navigation & interaction in 3D geovisualisations","authors":"S. Stannus, A. Lucieer, W. Fu","doi":"10.1145/2671015.2671131","DOIUrl":"https://doi.org/10.1145/2671015.2671131","url":null,"abstract":"Geospatial data is becoming increasingly important for many uses, from expert scientific domains to social media interaction. A lot of this data is three-dimensional in nature and in recent years virtual globe software like Google Earth has made visualising such data much easier. However there has not been an equivalent improvement in the way in which users interact with the visualisations. Recognising that navigating a virtual world encompassing data at scales across many orders of magnitude requires a 7-dimensional representation of the view state, we have implemented our AeroSpace 7DoF interaction method [Stannus et al. 2014] in a Geovisualisation testbed built around NASA's World Wind virtual globe software. Our approach expands the two-point touch method [Hancock et al.] to 3D with pinches replacing touches. It surpasses previous two-point work [Wang et al. 2011] [Song et al.] [Schultheis et al. 2012] by allowing direct, bimanual, integral, simultaneous navigation with index-finger-moderated roll around the ambiguous axis, though the virtual hands were offset indirectly to mitigate occlusion. Our system was implemented in an immersive environment with 3 large stereo screens for display and an ARTrack3 system for tracking the users head (via retroreflective markers on stereoscopic glasses) and hands. Custom gloves were used to report pinch and pointing gesture contact states via Bluetooth and provide 5DoF tracking via markers on the index fingers.","PeriodicalId":93673,"journal":{"name":"Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology","volume":"1 1","pages":"229-230"},"PeriodicalIF":0.0,"publicationDate":"2014-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88678883","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: 3
Robust 6-DOF immersive navigation using commodity hardware 稳健的六自由度沉浸式导航使用商品硬件
Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology Pub Date : 2014-11-11 DOI: 10.1145/2671015.2671115
L. Carozza, F. Bosché, M. A. Wahab
{"title":"Robust 6-DOF immersive navigation using commodity hardware","authors":"L. Carozza, F. Bosché, M. A. Wahab","doi":"10.1145/2671015.2671115","DOIUrl":"https://doi.org/10.1145/2671015.2671115","url":null,"abstract":"In this paper we present a novel visual-inertial 6-DOF localization approach that can be directly integrated in a wearable immersive system for simulation and training. In this context, while CAVE environments typically require complex and expensive set-up, our approach relies on visual and inertial information provided by commodity hardware, i.e. a consumer monocular camera and an Inertial Measurement Unit (IMU).\u0000 We propose a novel robust pipeline based on state-of-the-art image-based localization and sensor fusion approaches. A loosely-coupled sensor fusion approach, which makes use of robust orientation information from the IMU, is employed to cope with failures in visual tracking (e.g. due to camera fast motion) in order to limit motion jitters. Fast and smooth re-localization is also provided to track position following visual tracking outage and guarantee continued operation. The 6-DOF information is then used to render consistently VR contents on a stereoscopic HMD. The proposed system, demonstrated in the context of Construction, runs at 30 fps on a standard PC and requires a very limited set-up for its intended application.","PeriodicalId":93673,"journal":{"name":"Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology","volume":"22 1","pages":"19-22"},"PeriodicalIF":0.0,"publicationDate":"2014-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84145378","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
Dissection of hybrid soft tissue models using position-based dynamics 基于位置动力学的混合软组织模型解剖
Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology Pub Date : 2014-11-11 DOI: 10.1145/2671015.2671129
Junjun Pan, Junxuan Bai, Xin Zhao, A. Hao, Hong Qin
{"title":"Dissection of hybrid soft tissue models using position-based dynamics","authors":"Junjun Pan, Junxuan Bai, Xin Zhao, A. Hao, Hong Qin","doi":"10.1145/2671015.2671129","DOIUrl":"https://doi.org/10.1145/2671015.2671129","url":null,"abstract":"This paper describes an interactive dissection approach for hybrid soft tissue models governed by position-based dynamics. Our framework makes use of a hybrid geometric model comprising both surface and volumetric meshes. The fine surface triangular mesh is used to represent the exterior structure of soft tissue models. Meanwhile, the interior structure of soft tissues is constructed by coarser tetrahedral meshes, which are also employed as physical models participating in dynamic simulation. The less details of interior structure can effectively reduce the computational cost of deformation and geometric subdivision during dissection. For physical deformation, we design and implement a position-based dynamics approach that supports topology modification and enforces the volume-preserving constraint. Experimental results have shown that, this hybrid dissection method affords real-time and robust cutting simulation without sacrificing realistic visual performance.","PeriodicalId":93673,"journal":{"name":"Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology","volume":"15 1","pages":"219-220"},"PeriodicalIF":0.0,"publicationDate":"2014-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78253898","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: 4
User-perspective augmented reality magic lens from gradients 用户视角增强现实魔法镜头从梯度
Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology Pub Date : 2014-11-11 DOI: 10.1145/2671015.2671027
Domagoj Baričević, Tobias Höllerer, P. Sen, M. Turk
{"title":"User-perspective augmented reality magic lens from gradients","authors":"Domagoj Baričević, Tobias Höllerer, P. Sen, M. Turk","doi":"10.1145/2671015.2671027","DOIUrl":"https://doi.org/10.1145/2671015.2671027","url":null,"abstract":"In this paper we present a new approach to creating a geometrically-correct user-perspective magic lens and a prototype device implementing the approach. Our prototype uses just standard color cameras, with no active depth sensing. We achieve this by pairing a recent gradient domain image-based rendering method with a novel semi-dense stereo matching algorithm inspired by PatchMatch. Our stereo algorithm is simple but fast and accurate within its search area. The resulting system is a real-time magic lens that displays the correct user perspective with a high-quality rendering, despite the lack of a dense disparity map.","PeriodicalId":93673,"journal":{"name":"Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology","volume":"51 1","pages":"87-96"},"PeriodicalIF":0.0,"publicationDate":"2014-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88422294","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: 20
Performance improvement using data tags for handheld spatial augmented reality 使用数据标签改进手持空间增强现实的性能
Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology Pub Date : 2014-11-11 DOI: 10.1145/2671015.2671116
Andrew Irlitti, G. S. Itzstein, Ross T. Smith, B. Thomas
{"title":"Performance improvement using data tags for handheld spatial augmented reality","authors":"Andrew Irlitti, G. S. Itzstein, Ross T. Smith, B. Thomas","doi":"10.1145/2671015.2671116","DOIUrl":"https://doi.org/10.1145/2671015.2671116","url":null,"abstract":"Mobile devices such as some recent phones are now fitted with projection capabilities that support Spatial Augmented Reality (SAR) and require investigation to uncover new interaction possibilities. This paper presents a study measuring user performance in a search and select task using a tracked handheld projector and data tags, a 3D physical cue. This physical cue is used to mark the location of hidden SAR information. The experiment required participants to search for virtual symbols presented on two 5ft, multi-sided control panels. Two methods of presenting AR information were employed, SAR alone and SAR with the inclusion of physical cues to indicate the location of the information. The results showed that attaching data tags, compared to virtual content alone lowered the overall task completion time and reduced handheld projector movement. Subjectively, participants also preferred the combination of virtual data with data tags across both task variations","PeriodicalId":93673,"journal":{"name":"Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology","volume":"3 1","pages":"161-165"},"PeriodicalIF":0.0,"publicationDate":"2014-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86563429","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: 4
Synchronized AR environment for multiple users using animation markers 使用动画标记为多个用户同步AR环境
Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology Pub Date : 2014-11-11 DOI: 10.1145/2671015.2671128
H. Yamazoe, Tomoko Yonezawa
{"title":"Synchronized AR environment for multiple users using animation markers","authors":"H. Yamazoe, Tomoko Yonezawa","doi":"10.1145/2671015.2671128","DOIUrl":"https://doi.org/10.1145/2671015.2671128","url":null,"abstract":"In this paper, we propose an AR environment in which multiple users can synchronously share and see AR contents based on our proposed animation markers with time-sequence information. Many AR systems have been proposed, some of which consider simultaneous use by multiple users. However, these systems require a synchronization mechanism among users (devices) for simultaneous displaying. Such mechanisms complicate the systems. Thus, we propose an animation marker that can transmit temporal (frame) information in a synchronized AR environment among multiple users using our animation markers.","PeriodicalId":93673,"journal":{"name":"Proceedings of the ACM Symposium on Virtual Reality Software and Technology. ACM Symposium on Virtual Reality Software and Technology","volume":"7 1","pages":"237-238"},"PeriodicalIF":0.0,"publicationDate":"2014-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86166805","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: 1
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