scholarly journals 3D Interaction Assistance in Virtual Reality: A Semantic Reasoning Engine for Context-Awareness

2013 ◽  
pp. 30-40 ◽  
Author(s):  
Yannick Dennemont ◽  
Guillaume Bouyer ◽  
Samir Otmane ◽  
Malik Mallem
Keyword(s):  
Virtual Reality ◽  
Context Awareness ◽  
3D Interaction ◽  
Semantic Reasoning ◽  
Reasoning Engine

scholarly journals Virtual Valcamonica: Collaborative Exploration of Prehistoric Petroglyphs and Their Surrounding Environment in Multi-User Virtual Reality

2018 ◽  
Vol 26 (3) ◽  
pp. 297-321 ◽  
Author(s):  
Alexander Kulik ◽  
André Kunert ◽  
Stephan Beck ◽  
Carl-Feofan Matthes ◽  
Andre Schollmeyer ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Visual Analysis ◽  
Rock Art ◽  
Aggregate Size ◽  
Point Clouds ◽  
Added Value ◽  
3D Analysis ◽  
Interaction Techniques ◽  
3D Interaction ◽  
3D Point Clouds

In this article, we present a novel, multi-user, virtual reality environment for the interactive, collaborative 3D analysis of large 3D scans and the technical advancements that were necessary to build it: a multi-view rendering system for large 3D point clouds, a suitable display infrastructure, and a suite of collaborative 3D interaction techniques. The cultural heritage site of Valcamonica in Italy with its large collection of prehistoric rock-art served as an exemplary use case for evaluation. The results show that our output-sensitive level-of-detail rendering system is capable of visualizing a 3D dataset with an aggregate size of more than 14 billion points at interactive frame rates. The system design in this exemplar application results from close exchange with a small group of potential users: archaeologists with expertise in rockart. The system allows them to explore the prehistoric art and its spatial context with highly realistic appearance. A set of dedicated interaction techniques was developed to facilitate collaborative visual analysis. A multi-display workspace supports the immediate comparison of geographically distributed artifacts. An expert review of the final demonstrator confirmed the potential for added value in rock-art research and the usability of our collaborative interaction techniques.

Editorial - Special Issue on VR and HCI Labs

2011 ◽  
Vol 2 (2) ◽  
pp. 1
Author(s):  
Fátima L.S. Nunes ◽  
Carla Dal Sasso Freitas
Keyword(s):  
Virtual Reality ◽  
Multimodal Interaction ◽  
Interactive Systems ◽  
Special Issue ◽  
Prospective Students ◽  
3D Interaction ◽  
Single Issue ◽  
Whole Process ◽  
Editorial Special Issue ◽  
First Time

This special issue of the SBC Journal on 3D Interactive Systems is dedicated to the dissemination of the activities of several groups working on virtual reality, 3D graphics, 3D interaction, multimodal interaction and related themes in Brazil and other countries. Through this initiative the SBC Journal on 3D Interactive Systems is innovating: it is the first time that a Brazilian journal publishes, in a single issue, information regarding different laboratories for prospective students and potential collaborators.The papers selected for this issue introduce Virtual Reality, Graphics and Human Computer Interaction laboratories, their mission and goals, as well as interesting results from their recent projects. This will benefit the scientific community as a whole. It is a special opportunity for the different research groups to introduce themselves, describe their interests and areas of activity, as well as their research directions, thus enabling contacts and potential cooperation.We received 30 manuscripts and, after a peer review phase, we selected 26 technical communications. Most of the VR and CG research laboratories in Brazil are represented; some are more dedicated to virtual reality and graphics applications, others also work with image processing for improving interaction. We also received interesting contributions from laboratories in other countries like Czech Republic, Denmark, Germany, New Zealand, Spain, Switzerland and United Kingdom, as well as from a trans-national group involving Belgium, France, Italy, Germany, Georgia, Hungary, Netherlands, Poland, Spain and United Kingdom.In a general way, readers will find information about research on interaction devices, gesture recognition-based interaction, collaborative interaction, and innovative ways of interaction with tablets and walls. Also several 3D interactive visualization and rendering techniques are well explored by VR and CG researchers. Applications related to health care, chemistry, arts, among others, are some of the topics that the labs are pursuing in their projects. All the groups are interested in receiving students and establishing collaboration for new projects. Thus, we hope the content of the papers here presented can help researchers in finding partners and, in this way, improving their contribution to the fields of VR, CG and HCI.We would like to express our thanks to the editor-in-chief, Luciana Nedel, for inviting us to be guest editors, but mainly for shaping the idea of this special issue. We also thank the reviewers for their help with insightful revisions, and the authors for their interesting contributions as well as for the willingness in the whole process of preparing this issue.

scholarly journals First steps towards Live-action Virtual Reality Games

2016 ◽  
Vol 7 (1) ◽  
pp. 1
Author(s):  
Alexandre Silva Ribeiro Junior ◽  
Esteban Clua Walter Gonzales ◽  
Luis Valente ◽  
Bruno Feijó
Keyword(s):  
Virtual Reality ◽  
Context Awareness ◽  
Virtual World ◽  
Indoor Navigation ◽  
Fiducial Markers ◽  
Embodied Interaction ◽  
Optical Noise ◽  
Infrared Spectral ◽  
Physical Elements ◽  
Live Action

In this paper we describe the main concepts of a new game genre (live-action virtual reality game) made possible by the advances of virtual reality technologies and context-awareness. This set of games requires that players wear HMD devices, from where they see a complete virtual world that is built using part of the physical configuration as the basic geometry and context information. games keep both the virtual and real-worlds superimposed, requiring players to physically move in the environment and to use different interaction paradigms (such as tangible & embodied interaction) to complete game activities. As tracking physical elements is a key issue in the implementation of games, in this paper we also describe an architecture that addresses indoor navigation and tracking in live-action virtual reality games. The system we propose is based on infrared markers, working on the infrared spectral region that provides low optical noise and better precision when compared to traditional solutions based on fiducial markers. Furthermore, this paper describes our system and presents two case studies based on our architecture.

scholarly journals Interaksi 3D Sensor Leap Motion untuk Menggenggam Benda Virtual

CYCLOTRON ◽  
2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Lukman Hakim ◽  
Surya Sumpeno ◽  
Supeno Mardi Susiki Nugroho
Keyword(s):  
Virtual Reality ◽  
Hand Movement ◽  
Fine Motor ◽  
Motion Sensor ◽  
Motion Sensors ◽  
Leap Motion ◽  
3D Interaction ◽  
Virtual Objects ◽  
Accuracy And Precision ◽  
Fine Motor Performance

Abstrak - Penelitian ini membahas tentang interaksi 3D sensor Leap Motion untuk simulasi menggenggam Benda virtual Plastis. Sebuah interaksi 3D sensor Leap Motion yang digunakan sebagai simulasi untuk menggenggam benda virtual Plastis dengan menggunakan media objek telur virtual secara presisi dan akurasi yang tepat. Pada dasarnya menggenggam merupakan suatu kegiatan yang menerapkan kinerja motorik halus pada tangan untuk melakukan gerakan. Penggunaan sensor Leap Motion sebagai interaksi 3D dipakai untuk menggenggam objek maya dalam hal ini bentuk 3D telur virtual sebagai media praktiknya. Telur sendiri merupakan benda yang gampang distimulasi dan memiliki sifat texture yang halus untuk merespon segala bentuk gerakan pada genggaman tangan. Dalam penelitian Interaksi 3D Sensor Leap Motion untuk simulasi untuk menggenggam benda Virtual Plastis dengan menggunakan media objek telur virtual, ini di peruntukkan untuk mengetahui akurasi dan presisi dari pola gerakan tangan secara imersif. Pengembangan dari metode ini bertujuan untuk simulasi menggenggam benda atau objek maya dengan adanya interaksi pola gerakan tangan.Kata kunci: leapmotion, 3d, virtual reality, benda, telurAbstract - This study discusses about the 3D interaction of the Leap Motion sensor for the simulation of holding virtual plastic objects. A 3D interaction of the Leap Motion sensor that is used as a simulation to hold Plastis virtual objects by using virtual egg object media with precise and right accuracy. Basically, holding is an activity that applies fine motor performance on the hands to make movements. The use of the Leap Motion sensor as a 3D interaction is used to hold virtual objects in this case a 3D form of virtual eggs as practice media. Eggs are objects that are easily stimulated and have subtle texture to respond to all forms of movement in the hands. In the 3D interaction Leap Motion Sensors for virtual plastic objects holding simulation by using virtual egg object media, it is intended to find out the accuracy and precision of immersive hand movement patterns. The development of this method aims to simulate holding virtual objects or objects with the interaction of hand movement patterns.Keywords: leap motion, 3d, virtual reality, object, egg

scholarly journals A multimodal virtual reality interface for 3D interaction with VTK

2007 ◽  
Vol 13 (2) ◽  
pp. 197-219 ◽  
Author(s):  
Arjan J. F. Kok ◽  
Robert van Liere
Keyword(s):  
Virtual Reality ◽  
3D Interaction

scholarly journals Editorial

2012 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Luciana Nedel
Keyword(s):  
Virtual Reality ◽  
Virtual Learning ◽  
Visual Programming ◽  
Lessons Learned ◽  
Virtual Learning Environment ◽  
Interactive Systems ◽  
Programming Environment ◽  
3D Interaction ◽  
Medical Simulator ◽  
And Training

It is my pleasure to introduce you the first issue of the SBC Journal on 3D Interactive Systems (JIS) in 2012. This issue contains three original papers, which surprisingly cover the same research topic, the development of virtual reality systems. The conception of fully interactive virtual reality systems is still a challenge. To choose the best interaction techniques and devices to each application task, to combine different technologies in a single system, to quickly prototype these systems, and to fulfill the expectations of the final user are just some few examples of problems that need to be faced by developers. The use of virtual reality and 3D interaction is yet new and there is not sufficient standards to follow in order to succeed. The first paper of this issue, “Visual Programming for Virtual Reality Applications Based on InTml”, was written by Pablo Figueroa, Santiago Gil, Raul Oses, Juan Toro, Catalina Rodriguez, Christian Benavides and Esteban Correa, from Colombia. The paper presents VPE, a visual programming environment developed to help in the development of portable virtual reality applications. More than this, the authors report advantages and drawbacks of their approach and share with us the lessons learned with this work. The paper “Assessment Systems for Training Based on Virtual Reality: A Comparison Study” authored by Ronei M. Moraes and Liliane S. Machado, from Brazil, discusses some of the challenges to construct a medical simulator based on virtual reality. An important question concerning the use of virtual reality based training is how to know when the user will be ready to practice in real situations. In this paper, the authors compared four methodologies for online assessment. The goal is to identify methods that could be used to reconfigure the simulation according to users’ performance in real time. I invite you to read the paper and make your own choices. The third and last paper, “Experiences with Virtual Learning Using 3D Interactive Systems for Education and Training”, was written by Damian Schofield, from USA, and is also related to virtual reality simulators. The author presents a virtual learning environment (ViRILE) developed by his group and uses it to highlight the complex operational problems that have been encountered during the process. In this paper, the lessons learned with the experience are extrapolated into general guidelines that are here shared with the readers. We hope this issue will fulfill your expectations. Enjoy it!

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