2012 14th Symposium on Virtual and Augmented Reality最新文献_第2页

From VR to AR: Adding AR Functionality to an Existing VR Software Framework 从VR到AR:将AR功能添加到现有的VR软件框架

2012 14th Symposium on Virtual and Augmented Reality Pub Date : 2012-05-28 DOI: 10.1109/SVR.2012.18

F. Mannuß, André Hinkenjann

引用次数: 0

Realistic Shadows for Mobile Augmented Reality 逼真的阴影移动增强现实

2012 14th Symposium on Virtual and Augmented Reality Pub Date : 2012-05-28 DOI: 10.1109/SVR.2012.9

Tássio Knop de Castro, L. H. Figueiredo, L. Velho

引用次数: 15

Human Body Motion and Gestures Recognition Based on Checkpoints 基于检查点的人体运动和手势识别

2012 14th Symposium on Virtual and Augmented Reality Pub Date : 2012-05-28 DOI: 10.1109/SVR.2012.16

T. Chaves, L. Figueiredo, A. D. Gama, C. Araújo, V. Teichrieb

{"title":"Human Body Motion and Gestures Recognition Based on Checkpoints","authors":"T. Chaves, L. Figueiredo, A. D. Gama, C. Araújo, V. Teichrieb","doi":"10.1109/SVR.2012.16","DOIUrl":"https://doi.org/10.1109/SVR.2012.16","url":null,"abstract":"The computational implementation of human body gestures recognition has been a challenge for several years. Nowadays, thanks to the development of RGB-D cameras it is possible to acquire a set of data that represents a human position in time. Despite that, these cameras provide raw data, still being a problem to identify in real-time a specific pre-defined user movement without relying on offline training. However, in several cases the real-time requisite is critical, especially when it is necessary to detect and analyze a movement continuously, as in the tracking of physiotherapeutic movements or exercises. This paper presents a simple and fast technique to recognize human movements using the set of data provided by a RGB-D camera. Moreover, it describes a way to identify not only if the performed motion is valid, i.e. belongs to a set of pre-defined gestures, but also the identification of at which point the motion is (beginning, end or somewhere in the middle of it). The precision of the proposed technique can be set to suit the needs of the application and has a simple and fast way of gesture registration, thus, being easy to set new motions if necessary. The proposed technique has been validated through a set of tests focused on analyzing its robustness considering a series of variations during the interaction like fast and complex gestures.","PeriodicalId":319713,"journal":{"name":"2012 14th Symposium on Virtual and Augmented Reality","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114878256","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: 18

A VR Framework for Desktop Applications 桌面应用的VR框架

2012 14th Symposium on Virtual and Augmented Reality Pub Date : 2012-05-28 DOI: 10.1109/SVR.2012.27

Lucas Teixeira, D. Trindade, Manuel E. Loaiza, F. Carvalho, A. Raposo, I. Santos

引用次数: 6

Open/Closed Hand Classification Using Kinect Data 使用Kinect数据进行开/闭手分类

2012 14th Symposium on Virtual and Augmented Reality Pub Date : 2012-05-28 DOI: 10.1109/SVR.2012.20

J. M. Teixeira, Bernardo Reis, Samuel Macêdo, J. Kelner

引用次数: 12

Combining Augmented Reality and Speech Technologies to Help Deaf and Hard of Hearing People 结合增强现实和语音技术帮助聋人和重听人

2012 14th Symposium on Virtual and Augmented Reality Pub Date : 2012-05-28 DOI: 10.1109/SVR.2012.10

M. Mirzaei, S. Ghorshi, Mohammad Mortazavi

引用次数: 23

The Use of Virtual Reality for Simulation and Training of Bovine Artificial Insemination with Haptic Devices 用触觉装置模拟和训练牛人工授精的虚拟现实技术

2012 14th Symposium on Virtual and Augmented Reality Pub Date : 2012-05-28 DOI: 10.1109/SVR.2012.23

Alexandre Cardoso, E. Lamounier, A. D. M. Faro

引用次数: 4

Challenges in 3D Reconstruction from Images for Difficult Large-Scale Objects: A Study on the Modeling of Electrical Substations 高难度大尺度物体图像三维重建的挑战:变电站建模研究

2012 14th Symposium on Virtual and Augmented Reality Pub Date : 2012-05-28 DOI: 10.1109/SVR.2012.5

Francisco Simões, Mozart W. S. Almeida, Mariana Pinheiro, Ronaldo Dos Anjos, A. Santos, R. Roberto, V. Teichrieb, Clarice Suetsugo, Alexandre Pelinson

{"title":"Challenges in 3D Reconstruction from Images for Difficult Large-Scale Objects: A Study on the Modeling of Electrical Substations","authors":"Francisco Simões, Mozart W. S. Almeida, Mariana Pinheiro, Ronaldo Dos Anjos, A. Santos, R. Roberto, V. Teichrieb, Clarice Suetsugo, Alexandre Pelinson","doi":"10.1109/SVR.2012.5","DOIUrl":"https://doi.org/10.1109/SVR.2012.5","url":null,"abstract":"In recent years, 3D reconstruction from images has played a major role in computer vision with a lot of improvements regarding both quality and performance. One of its main uses is the generation of 3D models of objects that are difficult to modeling. In the electrical sector, 3D reconstruction from images shows itself as a candidate to be used in specific scenarios with the advantage of its low price compared to laser scanning techniques. In fact, there are many industrial applications that can use the power of 3D reconstruction from images but no work has focused more deeply on their requirements yet. This paper analyzes the advantages and drawbacks in using 3D reconstruction from image techniques and tools in the uncontrolled environment of an electrical substation from the scenario characteristics and tools limitations points of view. Some representative available tools (commercial and academic) where evaluated and the relationship between scenario/object characteristics and reconstructed model quality could be pointed out for further improvements of the techniques in future work. This results can be used to create industrial applications with large scale difficult objects.","PeriodicalId":319713,"journal":{"name":"2012 14th Symposium on Virtual and Augmented Reality","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114548149","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: 17

Guidance and Movement Correction Based on Therapeutics Movements for Motor Rehabilitation Support Systems 运动康复支持系统中基于治疗运动的指导和运动矫正

2012 14th Symposium on Virtual and Augmented Reality Pub Date : 2012-05-28 DOI: 10.1109/SVR.2012.15

A. D. Gama, T. Chaves, L. Figueiredo, V. Teichrieb

{"title":"Guidance and Movement Correction Based on Therapeutics Movements for Motor Rehabilitation Support Systems","authors":"A. D. Gama, T. Chaves, L. Figueiredo, V. Teichrieb","doi":"10.1109/SVR.2012.15","DOIUrl":"https://doi.org/10.1109/SVR.2012.15","url":null,"abstract":"The use of Virtual and Augmented Reality systems for motor rehabilitation is increasing mainly due to the new interaction tools which enable interaction through body movements. To improve these systems it is important to provide movement guidance and correction according to the therapeutic description of it. The use of natural interaction can help due the understanding of user's intentions, e.g. analyzing their body movements allows the application to provide information and encouragement to them in real time, improving the interaction and the treatment process as a whole. Thus, the aim of this research is to provide guidance and correction to performed movements based on the therapeutic definition of them. This is applied on motor rehabilitation through the use of the Kinect sensor as interaction support tool for rehabilitation systems. The Kinect sensor gives three-dimensional information about the user body, recognizing skeleton and joint positions, however, it does not provide detection of body specific movements. This way, the correct description of therapeutic movement (upper limbs, for instance) was implemented in a prototype. A scoring mechanism was also developed in order to measure the patient performance, as well as to encourage him/her to improve it by displaying a positive feedback whenever he does a correct movement.","PeriodicalId":319713,"journal":{"name":"2012 14th Symposium on Virtual and Augmented Reality","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121118253","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: 79

Local Quadrics Surface Approximation for Real-Time Tracking of Textureless 3D Rigid Curved Objects 无纹理三维刚体曲面实时跟踪的局部二次曲面逼近

2012 14th Symposium on Virtual and Augmented Reality Pub Date : 2012-05-28 DOI: 10.1109/SVR.2012.3

Marina Atsumi Oikawa, Takafumi Taketomi, Goshiro Yamamoto, Makoto Fujisawa, Toshiyuki Amano, Jun Miyazaki, H. Kato

{"title":"Local Quadrics Surface Approximation for Real-Time Tracking of Textureless 3D Rigid Curved Objects","authors":"Marina Atsumi Oikawa, Takafumi Taketomi, Goshiro Yamamoto, Makoto Fujisawa, Toshiyuki Amano, Jun Miyazaki, H. Kato","doi":"10.1109/SVR.2012.3","DOIUrl":"https://doi.org/10.1109/SVR.2012.3","url":null,"abstract":"This paper addresses the problem of tracking textureless rigid curved objects. A common approach uses polygonal meshes to represent curved objects and use them inside an edge-based tracking system. However, in order to accurately recover their shape, high quality meshes are required, creating a trade-off between computational efficiency and tracking accuracy. To solve this issue, we suggest the use of quadrics for each patch in the mesh to give local approximations of the object shape. The novelty of our research lies in using curves that represent the quadrics projection in the current viewpoint for distance evaluation instead of using the standard method which compares edges from mesh and detected edges in the video image. This representation allows to considerably reduce the level of detail of the polygonal mesh and led us to the development of a novel method for evaluating the distance between projected and detected features. The experiments results show the comparison between our approach and the traditional method using sparse and dense meshes. They are presented using both synthetic and real image data.","PeriodicalId":319713,"journal":{"name":"2012 14th Symposium on Virtual and Augmented Reality","volume":"166 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131697005","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