scholarly journals Augmented reality in the dynamic world of virtual tourism

2021 ◽  
Vol 942 (1) ◽  
pp. 012031
Author(s):  
Š Mudička ◽  
J Kello
Keyword(s):  
Augmented Reality ◽  
Mobile Devices ◽  
Laser Scanning ◽  
Mixed Reality ◽  
3D Models ◽  
Museum Visitors ◽  
Virtual Tourism ◽  
Potential Benefits ◽  
Visual Properties

Abstract The issue of virtual tourism penetrates the consciousness of many current explorers and visitors to interesting sites and local attractions. Is it really necessary to physically travel to the chosen location, sacrifice time, money and increase your carbon footprint? The article deals with the issue of creating an application using augmented reality for the presentation of 3D models of cultural monuments. The application is designed for mobile devices, on which museum visitors can view digital copies of selected objects of interest. They can also take a virtual tour of the museum through their mobile devices from the comfort of their home. The introductory part of the article describes surveying of shape and visual properties in situ using photogrammetry and laser scanning. The sequent chapters are an analysis of the creation of 3D models in real scale with photorealistic textures and their presentation in a mixed reality environment. In our case, we will specifically focus on the augmented reality application and its development in the Unity multiplatform game engine. The article aims to describe the development of a mobile marker-based AR application briefly, to demonstrate the possibilities of augmented reality and to indicate the potential benefits resulting from the integration of X-reality into our lives. Specifically, we will focus on the application of AR to cartographic works and the enrichment of the content of classical 2D map works and plans with virtually designed 3D models on their surface.

scholarly journals POSSIBILITIES OF SPATIAL CORRELATION OF 3D MODELS IN AN ARCHAEOLOGICAL AUGMENTED REALITY APPLICATION

2021 ◽  
Vol XLVI-M-1-2021 ◽  
pp. 355-359
Author(s):  
D. Kaimaris ◽  
T. Roustanis ◽  
K. Klimantakis ◽  
I. A. Karolos ◽  
P. Patias
Keyword(s):  
Augmented Reality ◽  
Mobile Devices ◽  
3D Models ◽  
Archaeological Sites ◽  
Detection And Tracking ◽  
Augmented Reality Application ◽  
Building Walls ◽  
First Time ◽  
Made In

Abstract. The use of Augmented Reality (AR) technology is widespread in countless archaeological sites and a variety of applications. Archaeological excavations lead to archaeological finds, some of which are transported for preservation and then for exhibition in museums (jewelry, vases, etc.), while another part of them is documented in detail and remains in situ (eg building walls), roads, grave covers, etc.). However, after the registration of the archaeological finds, it is impossible to observe them. As part of our research project, we will develop for the first time AR methodology and procedures for the observation of covered archaeological finds on mobile devices (smart phones, tablets), which were registered after their documentation. AR technology in recent years has seen great growth in terms of implementation platforms and available software, as well as the tools developed to support it. These tools either make their appearance in the form of frameworks, extending the capabilities of an existing engine, or function as independent services. At the same time, progress has been made in the field of sensors of mobile devices, which makes the compatibility of hardware and software another issue to be researched. As part of the development of the above application for mobile devices, an evaluation is made of the most widespread AR Frameworks that support the Unity3d Game Engine and the compatibility / interoperability with the sensors of different categories of mobile devices. The frameworks were checked and evaluated for placement and tracking of the positions of the 3D covered objects. In this paper also, methodologies and techniques used in space detection and tracking are presented and evaluated.

scholarly journals An Augmented Reality Tool for Teaching Application in the Agronomy Domain

2020 ◽  
Vol 10 (10) ◽  
pp. 3632 ◽  
Author(s):  
Dolores Parras-Burgos ◽  
Daniel G. Fernández-Pacheco ◽  
Thomas Polhmann Barbosa ◽  
Manuel Soler-Méndez ◽  
José Miguel Molina-Martínez
Keyword(s):  
Augmented Reality ◽  
Mobile Devices ◽  
Learning Strategies ◽  
New Technologies ◽  
3D Models ◽  
Free Access ◽  
Teaching Innovation ◽  
Agricultural Engineering ◽  
Graphic Representations ◽  
Teaching Learning

Nowadays, the combination of new technologies and the use of mobile devices opens up a new range of teaching–learning strategies in different agricultural engineering degrees. This article presents an augmented reality tool that allows for improved spatial viewing for students who have certain difficulties with viewing graphic representations of agronomic systems and devices. This tool is known as ARTID (Augmented Reality for Teaching, Innovation and Design) and consists in a free-access mobile application for devices using the Android operating system. The proposed method provides each exploded drawing or overall drawing with a QR code that can be used by students to view their 3D models by augmented reality in their own mobile devices. An evaluation experience was carried out to assess the validity of the tool on different devices and the acceptance and satisfaction level of this kind of resources in subjects of graphic expression in engineering. Finally, an example of application in the agronomic domain is provided by the 3D virtual model of portable ferticontrol equipment that comprises the different structures and tanks, which, if viewed by conventional graphical representations, may entail a certain level of difficulty. Thanks to this tool, reality can be merged with the virtual world to help favour the understanding of certain concepts and to increase student motivation in agronomy studies.

scholarly journals Reconstructive Archaeology: In Situ Visualisation of Previously Excavated Finds and Features through an Ongoing Mixed Reality Process

2020 ◽  
Vol 10 (21) ◽  
pp. 7803
Author(s):  
Miguel Angel Dilena ◽  
Marie Soressi
Keyword(s):  
Mixed Reality ◽  
Archaeological Site ◽  
3D Models ◽  
Research Area ◽  
Archaeological Excavation ◽  
Precise Location ◽  
3D Geometry ◽  
Different Types ◽  
Freely Moving

Archaeological excavation is a demolishing process. Rather few elements outlast extractive operations. Therefore, it is hard to visualise the precise location of unearthed finds at a previously excavated research area. Here, we present a mixed reality environment that displays in situ 3D models of features that were formerly extracted and recorded with 3D coordinates during unearthing operations. We created a tablet application that allows the user to view the position, orientation and dimensions of every recorded find while freely moving around the archaeological site with the device. To anchor the model, we used physical landmarks left at the excavation. A series of customised forms were created to show (onscreen) the different types of features by superimposing them over the terrain as perceived by the tablet camera. The application permits zooming-in, zooming-out, querying for specific artefacts and reading metadata associated with the archaeological elements. When at the office, our environment enables accurate visualisations of the 3D geometry concerning previously unearthed features and their spatial relationships. The application operates using the Swift programming language, Python scripts and ARKit technology. We present here an example of its use at Les Cottés, France, a palaeolithic site where thousands of artefacts are excavated out of six superimposed layers with a complex conformation.

scholarly journals 3D Visualization For Augmented Reality In ‘Jajanan Pasar’ Puzzles

2019 ◽  
Vol 11 (2) ◽  
Author(s):  
Jessica Carlina
Keyword(s):  
Augmented Reality ◽  
Mobile Devices ◽  
3D Model ◽  
3D Visualization ◽  
Three Dimensional ◽  
3D Models ◽  
Young Generation ◽  
3D Animation ◽  
Digital World

Jajanan Pasar is a term for Indonesian traditional snacks, a part of Indonesian culture that has been forgotten by the young generation. Three-dimensional (3D) animation and Augmented Reality (AR) can be used as a medium for introducing this culture to children aged 4 to 6. Because, in AR, visual between real and digital world can be altered, so the visual of 3D models can be enjoyed from various sides. This study focuses on 3D visualization for AR that packaged in 5 set of puzzles. Each piece has an illustration of the ingredients for making 5 kinds of Jajanan Pasar, after all, puzzle pieces of each set get arranged, a new 3D model of traditional snacks will be appeared. The data was collected using literature and existing studies method. The purpose of this study is to create an optimal 3D visualization for AR that will be applicated for mobile devices. Conclusion from this project are the polygon count and target marker’s quality, affect the appearance of the 3D model in AR form.

scholarly journals 3D URBAN GEOVISUALIZATION: IN SITU AUGMENTED AND MIXED REALITY EXPERIMENTS

2018 ◽  
Vol IV-4 ◽  
pp. 41-48 ◽  
Author(s):  
A. Devaux ◽  
C. Hoarau ◽  
M. Brédif ◽  
S. Christophe
Keyword(s):  
Augmented Reality ◽  
Pose Estimation ◽  
Mixed Reality ◽  
Urban Spaces ◽  
Ex Situ ◽  
Use Case ◽  
Interaction Techniques ◽  
Occlusion Handling ◽  
Urban Project

<p><strong>Abstract.</strong> In this paper, we assume that augmented reality (AR) and mixed reality (MR) are relevant contexts for 3D urban geovisualization, especially in order to support the design of the urban spaces. We propose to design an in situ MR application, that could be helpful for urban designers, providing tools to interactively remove or replace buildings in situ. This use case requires advances regarding existing geovisualization methods. We highlight the need to adapt and extend existing 3D geovisualization pipelines, in order to adjust the specific requirements for AR/MR applications, in particular for data rendering and interaction. In order to reach this goal, we focus on and implement four elementary in situ and ex situ AR/MR experiments: each type of these AR/MR experiments helps to consider and specify a specific subproblem, i.e. scale modification, pose estimation, matching between scene and urban project realism, and the mix of real and virtual elements through portals, while proposing occlusion handling, rendering and interaction techniques to solve them.</p>

3-D imaging of cells using a confocal laser scanning microscope and digital image processing

1988 ◽  
Vol 46 ◽  
pp. 96-97
Author(s):  
Thomas M. Jovin ◽  
Michel Robert-Nicoud ◽  
Donna J. Arndt-Jovin ◽  
Thorsten Schormann
Keyword(s):  
Laser Scanning ◽  
Confocal Laser Scanning Microscope ◽  
Laser Scanning Microscopy ◽  
Confocal Laser Scanning ◽  
Confocal Laser ◽  
Scanning Microscope ◽  
Laser Scanning Microscope ◽  
Biochemical Processes ◽  
Adjacent Structures

Light microscopic techniques for visualizing biomolecules and biochemical processes in situ have become indispensable in studies concerning the structural organization of supramolecular assemblies in cells and of processes during the cell cycle, transformation, differentiation, and development. Confocal laser scanning microscopy offers a number of advantages for the in situ localization and quantitation of fluorescence labeled targets and probes: (i) rejection of interfering signals emanating from out-of-focus and adjacent structures, allowing the “optical sectioning” of the specimen and 3-D reconstruction without time consuming deconvolution; (ii) increased spatial resolution; (iii) electronic control of contrast and magnification; (iv) simultanous imaging of the specimen by optical phenomena based on incident, scattered, emitted, and transmitted light; and (v) simultanous use of different fluorescent probes and types of detectors.We currently use a confocal laser scanning microscope CLSM (Zeiss, Oberkochen) equipped with 3-laser excitation (u.v - visible) and confocal optics in the fluorescence mode, as well as a computer-controlled X-Y-Z scanning stage with 0.1 μ resolution.

Real-world environment affects the color appearance of virtual stimuli produced by augmented reality

2019 ◽  
Vol 2019 (1) ◽  
pp. 237-242
Author(s):  
Siyuan Chen ◽  
Minchen Wei
Keyword(s):  
Augmented Reality ◽  
Real World ◽  
Mixed Reality ◽  
Rapid Development ◽  
Light Level ◽  
Color Appearance ◽  
Chromatic Adaptation ◽  
Lighting Condition ◽  
The Real ◽  
World Environment

Color appearance models have been extensively studied for characterizing and predicting the perceived color appearance of physical color stimuli under different viewing conditions. These stimuli are either surface colors reflecting illumination or self-luminous emitting radiations. With the rapid development of augmented reality (AR) and mixed reality (MR), it is critically important to understand how the color appearance of the objects that are produced by AR and MR are perceived, especially when these objects are overlaid on the real world. In this study, nine lighting conditions, with different correlated color temperature (CCT) levels and light levels, were created in a real-world environment. Under each lighting condition, human observers adjusted the color appearance of a virtual stimulus, which was overlaid on a real-world luminous environment, until it appeared the whitest. It was found that the CCT and light level of the real-world environment significantly affected the color appearance of the white stimulus, especially when the light level was high. Moreover, a lower degree of chromatic adaptation was found for viewing the virtual stimulus that was overlaid on the real world.

Volumetric Video in Augmented Reality Applications for Museological Narratives

2021 ◽  
Vol 14 (2) ◽  
pp. 1-20
Author(s):  
Néill O’dwyer ◽  
Emin Zerman ◽  
Gareth W. Young ◽  
Aljosa Smolic ◽  
Siobhán Dunne ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Cultural Heritage ◽  
Applied Research ◽  
Ease Of Use ◽  
Museum Visitors ◽  
The Public ◽  
Research Article ◽  
Nature Of Information ◽  
Live Action ◽  
Capture Technique

Cross-reality technologies are quickly establishing themselves as commonplace platforms for presenting objects of historical, scientific, artistic, and cultural interest to the public. In this space, augmented reality (AR) is notably successful in delivering cultural heritage applications, including architectural and environmental heritage reconstruction, exhibition data management and representation, storytelling, and exhibition curation. Generally, it has been observed that the nature of information delivery in applications created for narrating exhibitions tends to be informative and formal. Here we report on the assessment of a pilot scene for a prototype AR application that attempts to break this mold by employing a humorous and playful mode of communication. This bespoke AR experience harnessed the cutting-edge live-action capture technique of volumetric video to create a digital tour guide that playfully embellished the museological experience of the museum visitors. This applied research article consists of measuring, presenting, and discussing the appeal, interest, and ease of use of this ludic AR storytelling strategy mediated via AR technology in a cultural heritage context.

scholarly journals Augmented Reality, Mixed Reality, and Hybrid Approach in Healthcare Simulation: A Systematic Review

2021 ◽  
Vol 11 (5) ◽  
pp. 2338
Author(s):  
Rosanna Maria Viglialoro ◽  
Sara Condino ◽  
Giuseppe Turini ◽  
Marina Carbone ◽  
Vincenzo Ferrari ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Mixed Reality ◽  
Ethical Issues ◽  
Medical Training ◽  
Hybrid Approach ◽  
Dental Surgery ◽  
Feasibility Assessment ◽  
Hybrid Approaches ◽  
Custom Made ◽  
Improved Performance

Simulation-based medical training is considered an effective tool to acquire/refine technical skills, mitigating the ethical issues of Halsted’s model. This review aims at evaluating the literature on medical simulation techniques based on augmented reality (AR), mixed reality (MR), and hybrid approaches. The research identified 23 articles that meet the inclusion criteria: 43% combine two approaches (MR and hybrid), 22% combine all three, 26% employ only the hybrid approach, and 9% apply only the MR approach. Among the studies reviewed, 22% use commercial simulators, whereas 78% describe custom-made simulators. Each simulator is classified according to its target clinical application: training of surgical tasks (e.g., specific tasks for training in neurosurgery, abdominal surgery, orthopedic surgery, dental surgery, otorhinolaryngological surgery, or also generic tasks such as palpation) and education in medicine (e.g., anatomy learning). Additionally, the review assesses the complexity, reusability, and realism of the physical replicas, as well as the portability of the simulators. Finally, we describe whether and how the simulators have been validated. The review highlights that most of the studies do not have a significant sample size and that they include only a feasibility assessment and preliminary validation; thus, further research is needed to validate existing simulators and to verify whether improvements in performance on a simulated scenario translate into improved performance on real patients.

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