scholarly journals Smart Localization Using a New Sensor Association Framework for Outdoor Augmented Reality Systems

2012 ◽  
Vol 2012 ◽  
pp. 1-15
Author(s):  
F. Ababsa ◽  
I. Zendjebil ◽  
J.-Y. Didier ◽  
M. Mallem
Keyword(s):  
Augmented Reality ◽  
Pose Estimation ◽  
Inertial Sensor ◽  
Heterogeneous Sensors ◽  
The Real ◽  
Virtual Objects ◽  
Camera Pose Estimation ◽  
Markerless Tracking ◽  
3D Camera

Augmented Reality (AR) aims at enhancing our the real world, by adding fictitious elements that are not perceptible naturally such as: computer-generated images, virtual objects, texts, symbols, graphics, sounds, and smells. The quality of the real/virtual registration depends mainly on the accuracy of the 3D camera pose estimation. In this paper, we present an original real-time localization system for outdoor AR which combines three heterogeneous sensors: a camera, a GPS, and an inertial sensor. The proposed system is subdivided into two modules: the main module is vision based; it estimates the user’s location using a markerless tracking method. When the visual tracking fails, the system switches automatically to the secondary localization module composed of the GPS and the inertial sensor.

Augmented Reality Berbasis Android Sebagai Media Pembelajaran Sistem Tata Surya

2021 ◽  
Vol 2 (1) ◽  
pp. 53-59
Author(s):  
Yulia Fatma ◽  
Armen Salim ◽  
Regiolina Hayami
Keyword(s):  
Augmented Reality ◽  
Solar System ◽  
Real Time ◽  
Real World ◽  
Virtual World ◽  
The Real ◽  
Virtual Objects ◽  
Augmented Reality Technology ◽  
The Revolution

Along with the development, the application can be used as a medium for learning. Augmented Reality is a technology that combines two-dimensional’s virtual objects and three-dimensional’s virtual objects into a real three-dimensional’s  then projecting the virtual objects in real time and simultaneously. The introduction of Solar System’s material, students are invited to get to know the planets which are directly encourage students to imagine circumtances in the Solar System. Explenational of planets form and how the planets make the revolution and rotation in books are considered less material’s explanation because its only display objects in 2D. In addition, students can not practice directly in preparing the layout of the planets in the Solar System. By applying Augmented Reality Technology, information’s learning delivery can be clarified, because in these applications are combined the real world and the virtual world. Not only display the material, the application also display images of planets in 3D animation’s objects with audio.

scholarly journals Ensino das Ciências Imerso em Ambientes Virtuais Multiusuários

2019 ◽  
Vol 20 ◽  
pp. 345-351
Author(s):  
Marisa Pascarelli Agrello ◽  
Marianina Impagliazzo ◽  
Joaquim José Escola
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Science Teaching ◽  
Present Article ◽  
Learning Objects ◽  
Educational Technologies ◽  
Virtual Objects ◽  
The World ◽  
Practical Experiences

ResumoNo presente artigo apresentamos a experiência realizada com o uso dos softwares de realidade aumentada (RA) e a realidade virtual (RV) em cenários para o Ensino das Ciências objetivando atender a Era da Educação 4 por meio de manipulação de objetos virtuais.Com aplicações distintas, as duas tecnologias são complementares e se configuram como ferramentas adicionais aos docentes com a proposta de elevar a qualidade das aulas e a geração de uma aprendizagem significativa representando uma ponte entre a educação e a tecnologia. Como objetos virtuais de aprendizagem (OVA), deverão ser usados em sala de aula como forma de enriquecimento das experiências práticas por meio da representação virtual de temas e contextos tornando mais ativa, contextualizada e efetiva o processo de apreensão do mundo. Palavras-chave: realidade virtual, realidade aumentada, ensino das ciências, tecnologias educacionais. Abstract In the present article we present the experience with the use of software of augmented reality (RA) and virtual reality (VR) in scenarios for the Teaching of Sciences in order to attend the Age 4 of Education through manipulation of virtual objects, the two technologies are complementary and are configured as additional tools for teachers with the proposal of raising the quality of lessons and generating meaningful learning as a bridge between education and technology. As virtuais learning objects, they should be used in the classroom as a way to enrich practical experiences through virtual representation of themes and contexts, making the process of apprehension of the world more active, contextualized and effective. Keywords: virtual reality, augmented reality, science teaching, educational technologies.

3D Camera Tracking for Mixed Reality using Multi-Sensors Technology

2013 ◽  
pp. 2164-2175
Author(s):  
Fakhreddine Ababsa ◽  
Iman Maissa Zendjebil ◽  
Jean-Yves Didier
Keyword(s):  
Mixed Reality ◽  
Research Field ◽  
Sensor Technology ◽  
Camera Tracking ◽  
Open Problems ◽  
The Real ◽  
New Directions ◽  
3D Camera ◽  
Real Objects

The concept of Mixed Reality (MR) aims at completing our perception of the real world, by adding fictitious elements that are not perceptible naturally such as: computer generated images, virtual objects, texts, symbols, graphics, sounds, smells, et cetera. One of the major challenges for efficient Mixed Reality system is to ensure the spatiotemporal coherence of the augmented scene between the virtual and the real objects. The quality of the Real/Virtual registration depends mainly on the accuracy of the 3D camera pose estimation. The goal of this chapter is to provide an overview on the recent multi-sensor fusion approaches used in Mixed Reality systems for the 3D camera tracking. We describe the main sensors used in those approaches and we detail the issues surrounding their use (calibration process, fusion strategies, etc.). We include the description of some Mixed Reality techniques developed these last years and which use multi-sensor technology. Finally, we highlight new directions and open problems in this research field.

scholarly journals Virtual Object Replacement Based on Real Environments: Potential Application in Augmented Reality Systems

2019 ◽  
Vol 9 (9) ◽  
pp. 1797
Author(s):  
Chen ◽  
Lin
Keyword(s):  
Augmented Reality ◽  
Virtual Environments ◽  
Real World ◽  
Point Clouds ◽  
Virtual Object ◽  
Movement Trajectory ◽  
The Real ◽  
Virtual Objects ◽  
Real Environment ◽  
Localization And Mapping

Augmented reality (AR) is an emerging technology that allows users to interact with simulated environments, including those emulating scenes in the real world. Most current AR technologies involve the placement of virtual objects within these scenes. However, difficulties in modeling real-world objects greatly limit the scope of the simulation, and thus the depth of the user experience. In this study, we developed a process by which to realize virtual environments that are based entirely on scenes in the real world. In modeling the real world, the proposed scheme divides scenes into discrete objects, which are then replaced with virtual objects. This enables users to interact in and with virtual environments without limitations. An RGB-D camera is used in conjunction with simultaneous localization and mapping (SLAM) to obtain the movement trajectory of the user and derive information related to the real environment. In modeling the environment, graph-based segmentation is used to segment point clouds and perform object segmentation to enable the subsequent replacement of objects with equivalent virtual entities. Superquadrics are used to derive shape parameters and location information from the segmentation results in order to ensure that the scale of the virtual objects matches the original objects in the real world. Only after the objects have been replaced with their virtual counterparts in the real environment converted into a virtual scene. Experiments involving the emulation of real-world locations demonstrated the feasibility of the proposed rendering scheme. A rock-climbing application scenario is finally presented to illustrate the potential use of the proposed system in AR applications.

scholarly journals Augmented Reality Research and Applications in Education

2021 ◽  
Author(s):  
Ezgi Pelin Yildiz
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Real Time ◽  
Virtual Environment ◽  
Real World ◽  
The Real ◽  
Virtual Objects ◽  
Physical Environments ◽  
Real Objects ◽  
As If

Augmented reality is defined as the technology in which virtual objects are blended with the real world and also interact with each other. Although augmented reality applications are used in many areas, the most important of these areas is the field of education. AR technology allows the combination of real objects and virtual information in order to increase students’ interaction with physical environments and facilitate their learning. Developing technology enables students to learn complex topics in a fun and easy way through virtual reality devices. Students interact with objects in the virtual environment and can learn more about it. For example; by organizing digital tours to a museum or zoo in a completely different country, lessons can be taught in the company of a teacher as if they were there at that moment. In the light of all these, this study is a compilation study. In this context, augmented reality technologies were introduced and attention was drawn to their use in different fields of education with their examples. As a suggestion at the end of the study, it was emphasized that the prepared sections should be carefully read by the educators and put into practice in their lessons. In addition it was also pointed out that it should be preferred in order to communicate effectively with students by interacting in real time, especially during the pandemic process.

scholarly journals 3D Object Detection and Scene Optimization for Tangible Augmented Reality

2018 ◽  
Vol 62 (2) ◽  
pp. 25-37
Author(s):  
Márton Szemenyei ◽  
Ferenc Vajda
Keyword(s):  
Augmented Reality ◽  
Shape Recognition ◽  
Genetic Operators ◽  
Graph Node ◽  
Virtual Objects ◽  
Augmented Reality System ◽  
Real Objects ◽  
Primitive Shape ◽  
3D Object Detection

Object recognition in 3D scenes is one of the fundamental tasks in computer vision. It is used frequently in robotics or augmented reality applications [1]. In our work we intend to apply 3D shape recognition to create a Tangible Augmented Reality system that is able to pair virtual and real objects in natural indoors scenes. In this paper we present a method for arranging virtual objects in a real-world scene based on primitive shape graphs. For our scheme, we propose a graph node embedding algorithm for graphs with vectorial nodes and edges, and genetic operators designed to improve the quality of the global setup of virtual objects. We show that our methods improve the quality of the arrangement significantly.

scholarly journals Estimating Illumination Direction for Augmented Reality in Real-Time by using Low-Cost Sensors

2017 ◽  
Vol 17 (02) ◽  
pp. e20 ◽  
Author(s):  
Kevin E. Soulier ◽  
Matías Nicolás Selzer ◽  
Martín Leonardo Larrea
Keyword(s):  
Augmented Reality ◽  
Real Time ◽  
Low Cost ◽  
Time Estimation ◽  
The Real ◽  
Virtual Objects ◽  
Illumination Direction ◽  
Real Objects ◽  
Real Time Estimation ◽  
Commercial Field

In recent years, Augmented Reality has become a very popular topic, both as a research and commercial field. This trend has originated with the use of mobile devices as computational core and display. The appearance of virtual objects and their interaction with the real world is a key element in the success of an Augmented Reality software. A common issue in this type of software is the visual inconsistency between the virtual and real objects due to wrong illumination. Although illumination is a common research topic in Computer Graphics, few studies have been made about real time estimation of illumination direction. In this work we present a low-cost approach to detect the direction of the environment illumination, allowing the illumination of virtual objects according to the real light of the ambient, improving the integration of the scene. Our solution is open-source, based on Arduino hardware and the presented system was developed on Android.

Sixth Sense Technology

2017 ◽  
Vol 1 (2) ◽  
pp. 18-41
Author(s):  
Zeenat AlKassim ◽  
Nader Mohamed
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Human Computer Interaction ◽  
Real World ◽  
The Real ◽  
Virtual Objects ◽  
Unique Manner ◽  
Software And Hardware ◽  
Hardware Designs ◽  
Computer Interaction

This paper discusses recent and unique inventions in Human Computer Interaction (HCI). To that end, firstly the authors discuss the Sixth Sense Technology. This technology allows users to interact with virtual objects in the real world in a unique manner. It has a number of applications which are further discussed. Then the opportunities and challenges are discussed. Most importantly, a list of inventions in fields of Augmented Reality (AR) and Virtual Reality (VR) in the recent years are discussed, grouped and compared. These include the smart eye glasses, VR headsets, smart watches, and more. Future implications of all those technologies are brought into light considering the new advancements in software and hardware designs. Recommendations are highlighted for future inventions.

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