Catching Virtual Throws. An Immersive Virtual Reality Setup to Evaluate Human Predictive Skills

Maselli A, Cesqui B, Tommasino P, Dhawan A, Lacquaniti F, d’Avella A. Catching Virtual Throws. An Immersive Virtual Reality Setup to Evaluate Human Predictive Skills. In: De Paolis LT, Bourdot P, eds. Augmented Reality, Virtual Reality, and Computer Graphics. 5th International Conference, AVR 2018, Otranto, Italy, June 24–27, 2018, Proceedings, Part I. Lecture Notes in Computer Science. Vol 10850. Cham: Springer International Publishing; 2018: 235-242

Використання доповненої реальності для візуалізації артефактів архітектури

Nowadays one of the most popular trends in software development is Augmented Reality (AR). AR applications offer an interactive user experience and engagement through a real-world environment. AR application areas include archaeology, architecture, business, entertainment, medicine, education and etc. In the paper we compared the main SDKs for the development of a marker-based AR apps and 3D modeling freeware computer programs used for developing 3D-objects. We presented a concept, design and development of AR application “Art-Heritage’’ with historical monuments and buildings of Crimean Tatars architecture (XIII-XX centuries). It uses a smartphone or tablet to alter the existing picture, via an app. Using “Art-Heritage’’ users stand in front of an area where the monuments used to be and hold up mobile device in order to see an altered version of reality.Нині однією з найпопулярніших тенденцій у розробці програмного забезпечення є доповнена реальність (AR). Додатки AR пропонують інтерактивний досвід користувача та взаємодію через середовище реального світу. Області застосування AR включають археологію, архітектуру, бізнес, розваги, медицину, освіту тощо. У статті ми порівняли основні SDK для розробки AR-додатків на основі маркерів та безкоштовних комп’ютерних програм для 3D-моделювання, що використовуються для розробки 3D-об’єктів. Ми презентували концепцію, дизайн та розвиток додатка AR «Мистецтво-спадщина» з історичними пам’ятками та будівлями архітектури кримських татар (XIII-XX століття). Він використовує смартфон або планшет для зміни існуючого зображення за допомогою програми. Користувачі “Мистецької спадщини” стають перед областю, де раніше були пам’ятники, і тримають мобільний пристрій, щоб побачити змінену версію реальності

Development and Evaluation of a Collaborative Stock Trading Environment in Virtual Reality

Due to the proliferation of Virtual Reality (VR) technology, VR is finding new applications in various domains, such as stock trading. Here, traders invest in stocks intending to increase their profit. For this purpose, in conventional stock trading, traders usually make use of 2D applications on desktop or laptop devices. This leads to many drawbacks such as poor visibility due to limited 2D representation, complex interaction due to indirect interaction via mouse and keyboard, or restricted support for collaboration between traders. To overcome these issues, we have developed a novel collaborative, virtual environment for stock trading, which enables stock traders to view financial information and trade stocks with other collaborators. The main results of a usability study indicate that the VR environment, compared to conventional stock trading, shows no significant advantages concerning efficiency and effectiveness, however, we could observe an increased user satisfaction and better collaboration

DESIGNING AN EXTENDED REALITY MOBILE GUIDE APPLICATION TO COMMUNICATE AND INTERPRET SERIAL WORLD HERITAGE SITES: A CASE STUDY OF KOREA’S SEOWON UNESCO WORLD HERITAGE SITE

Extended reality (XR) mobile guide applications offer unprecedented potential for immersive visitor experiences and in-depth knowledge retention to promote cultural learning at large-scale heritage sites, but, despite their significant development, the literature underexplores these applications for World Heritage sites, especially the serial properties that are spatially dispersed in various locations but configured as a single property. This paper describes a framework (blueprint) for the development of an XR mobile guide application focused on serial properties. By incorporating interactive XR and edutainment features, it explores a way to comprehensively reveal the interconnections between the heritage attributes of the subcomponent of the serial properties and their larger, cross-cultural context vis-à-vis the Outstanding Universal Values. To this end, at the Seowon, the UNESCO World Heritage site in Korea, we analyzed user interactions with a prototype of the XR application to identify user preferences and areas for improving the framework

EVD Surgical Guidance with Retro-Reflective Tool Tracking and Spatial Reconstruction using Head-Mounted Augmented Reality Device

Augmented Reality (AR) has been used to facilitate surgical guidance during External Ventricular Drain (EVD) surgery, reducing the risks of misplacement in manual operations. During this procedure, the pivotal challenge is the accurate estimation of spatial relationship between pre-operative images and actual patient anatomy in AR environment. In this research, we propose a novel framework utilizing Time of Flight (ToF) depth sensors integrated in commercially available AR Head Mounted Devices (HMD) for precise EVD surgical guidance. As previous studies have proven depth errors for ToF sensors, we first conducted a comprehensive assessment for the properties of this error on AR-HMDs. Subsequently, a depth error model and patient-specific model parameter identification method, is introduced for accurate surface information. After that, a tracking procedure combining retro-reflective markers and point clouds is proposed for accurate head tracking, where head surface is reconstructed using ToF sensor data for spatial registration, avoiding fixing tracking targets rigidly on the patient's cranium. Firstly, $7.580\pm 1.488 mm$ ToF sensor depth value error was revealed on human skin, indicating the significance of depth correction. Our results showed that the ToF sensor depth error was reduced by over $85\%$ using proposed depth correction method on head phantoms in different materials. Meanwhile, the head surface reconstructed with corrected depth data achieved sub-millimeter accuracy. Experiment on a sheep head revealed $0.79 mm$ reconstruction error. Furthermore, a user study was conducted for the performance of proposed framework in simulated EVD surgery, where 5 surgeons performed 9 k-wire injections on a head phantom with virtual guidance. Results of this study revealed $2.09 \pm 0.16 mm$ translational accuracy and $2.97\pm 0.91 ^\circ$ orientational accuracy

Augmented Reality, Virtual Reality, and Computer Graphics - 5th International Conference, AVR 2018, Otranto, Italy, June 24-27, 2018, Proceedings, Part I

International audienc

Serious Games and Mixed Reality Applications for Healthcare

Virtual reality (VR) and augmented reality (AR) have long histories in the healthcare sector, offering the opportunity to develop a wide range of tools and applications aimed at improving the quality of care and efficiency of services for professionals and patients alike. The best-known examples of VR–AR applications in the healthcare domain include surgical planning and medical training by means of simulation technologies. Techniques used in surgical simulation have also been applied to cognitive and motor rehabilitation, pain management, and patient and professional education. Serious games are ones in which the main goal is not entertainment, but a crucial purpose, ranging from the acquisition of knowledge to interactive training.These games are attracting growing attention in healthcare because of their several benefits: motivation, interactivity, adaptation to user competence level, flexibility in time, repeatability, and continuous feedback. Recently, healthcare has also become one of the biggest adopters of mixed reality (MR), which merges real and virtual content to generate novel environments, where physical and digital objects not only coexist, but are also capable of interacting with each other in real time, encompassing both VR and AR applications.This Special Issue aims to gather and publish original scientific contributions exploring opportunities and addressing challenges in both the theoretical and applied aspects of VR–AR and MR applications in healthcare

Матеріали 4-го Міжнародного семінару з доповненої реальності в освіті (AREdu 2021). Кривий Ріг, Україна. 11 травня 2021 року

Proceedings of the 4th International Workshop on Augmented Reality in Education (AREdu 2021). Kryvyi Rih, Ukraine. May 11, 2021.Матеріали 4-го Міжнародного семінару з доповненої реальності в освіті (AREdu 2021). Кривий Ріг, Україна. 11 травня 2021 рок