Ezequiel Roberto Zorzal

Federal University of São Paulo | UNIFESP · Departamento de Ciência e Tecnologia (DCT)

Augmented and Mixed Reality (AR/MR) technologies enhance the human perception of the world by combining virtual and real environments. With the increase of mobile devices and the advent of 5G, this technology has the potential to become part of people’s life. This article aims to evaluate the impact of 5G and beyond mobile networks in the future of...

To test and evaluate the second installment of DENTIFY, a virtual reality haptic simulator for Operative Dentistry (OD), on preclinical dental students, by focusing on user performance and self-assessment. Twenty voluntary unpaid preclinical dental students, with different background experience, were enrolled for this study. After the completion of...

Diabetic Foot is one of the most common complications of Diabetes Mellitus and the leading non-traumatic cause of lower-limb amputations worldwide. These complications are preventable with early diagnosis and timely care. However, even in the context of expanding primary health care, this problem continues to increase, which suggests a gap in the t...

Background: Dental education and training have been centered on traditional verbal instructions and subsequent execution on training models, however these have limitations. Virtual Reality (VR) and simulators have been proposed with promising initial results and advantages and have showed promising results in the pre-clinical training environment....

Laparoscopic surgery has the advantage of avoiding large open incisions and thereby decreasing blood loss, pain, and discomfort to patients. However, on the other side, it is hampered by restricted workspace, ambiguous communication, and surgeon fatigue caused by non-ergonomic head positioning. We aimed to identify critical problems and suggest des...

The pandemic brought about an unprecedented number of virtual conferences, given the heavy restrictions on travel to in-person meetings. Despite all the advances in technology, people still complain about virtual events. There is Zoom fatigue, confinement malaise, and a longing for personal social interactions. This paper discusses our experience o...

It is noticeable that more and more medical professionals have been searching for strategies to keep people engaged both in the recovery processes (cognitive or physical) and in the teaching part. It is possible to observe that the insertion of Serious Games has been offering this innovative possibility, which allows the development of new possibil...

A Realidade Aumentada pode ser aplicada de muitas formas em diversas áreas do conhecimento. Cabe ressaltar sua utilização no ensino. Devido à sua alta capacidade de interação, a Realidade Aumentada pode prover aplicações mais intuitivas e melhorar a interação humano-computador. Concomitantemente, os modos de ensinar vêm sendo beneficiados com diver...

This paper presents a Systematic Literature Review (RSL) on the use of Gamification and Augmented Reality applied in Education. RSL enabled mapping and knowledge of the current state of related studies. Thirty articles related to the state of the art were analyzed. From the analysis, it was found that there is no specific learning assessment method...

Resumo. Este trabalho apresenta uma Revisão Sistemática da Literatura (RSL) sobre o uso da Gamificação e da Realidade Aumentada aplicadas na Educação. A RSL possibilitou o mapeamento e o conhecimento do estado atual dos estudos correlatos. Foram analisados 30 artigos relacionados ao estado da arte. A partir da análise, verificou-se que não há uma m...

PurposeThe incidence of diabetes mellitus (DM) is a significant and growing health problem for all countries, regardless of their development level. Providing mobile computing solutions that assist the patients in their daily treatment routine can be an excellent ally.Objective This systematic review aims to assess how mobile apps for DM treatment...

3D reconstruction from anatomical slices permits anatomists to create three-dimensional depictions of real structures by tracing organs from sequences of cryosections. A wide variety of tools for 3D reconstruction from anatomical slices are becoming available for use in training and study. In this chapter, we present Anatomy Studio, a collaborative...

Corporate training relates to employees acquiring essential skills to operate equipment or effectively performing required tasks both competently and safely. Unlike formal education, training can be incorporated into the task workflow and performed during working hours. Increasingly, organizations adopt different technologies to develop both indivi...

Studies indicate that Augmented Reality (AR) is quickly becoming an effective technology for training programs. This systematic literature review (SLR) aims to screen works published on AR for corporate training. We describe AR training applications, discuss current challenges, literature gaps, opportunities, and tendencies of corporate AR solution...

Background Tools for training and education of dental students can improve their ability to perform technical procedures such as dental implant placement. Shortage of training can negatively affect dental implantologists’ performance during intraoperative procedures, resulting in lack of surgical precision and, consequently, inadequate implant plac...

One major manufacturing challenge of the fourth industrial revolution is the quality of product development information used in the assembly line. One of the most studied information visualization technologies is Augmented Reality (AR), whose deployment via mobile devices is currently being promoted. However, the industrial sector still has doubts...

Background, a avaliação de cores é usada na indústria para garantir que as cores de uma imagem ou material sejam idênticas àquelas aprovadas durante o desenvolvimento e que a variação da cor final devido ao processo não seja perceptível para o consumidor. Este estudo teve como objetivo a investigação de abordagens e métodos para identificação e ava...

This article aims to evaluate the impact of Augmented Reality (AR) applicability and usefulness on real industrial processes by employing a systematic literature review (SLR). The SLR was performed in five digital libraries to identify articles and reviews concerning the AR applicability from 2012 to 2018. A patent search in Google’s patents databa...

3D reconstruction from anatomical slices allows anatomists to create three dimensional depictions of real structures by tracing organs from sequences of cryosections. However, conventional user interfaces rely on single-user experiences and mouse-based input to create content for education or training purposes. In this work, we present Anatomy Stud...

A Realidade Aumentada móvel pode ser aplicada em diversas áreas do conhecimento, dentre elas, podemos destacar o uso da tecnologia na educação. O objetivo deste artigo é apresentar uma análise das aplicações de Realidade Aumentada móvel para educação, considerando as áreas da educação que têm sido beneficiadas e o levantamento dos desafios da área....

Este trabalho apresenta uma aplicação de Realidade Aumentada voltada paraapoiar o ensino de conteúdos relacionados ao Sistema Solar, principalmente emsituações onde a visualização da diferença de tamanho entre os corpos celestes éimportante. A aplicação possui três experimentos para apoiar o ensino: escala doscorpos celestes do Sistema Solar; anima...

A Realidade Aumentada é apresentada como uma opção para a implementação de jogos inovadores, envolvendo maior flexibilização e exploração das características espaciais para o desenvolvimento cognitivo das pessoas. Este trabalho descreve a implementação de um jogo colaborativo com Realidade Aumentada e discute sua utilização, mostrando suas restriçõ...

A microblogging, such as the Twitter, is a Social Networking Service that allows the publication of short messages. Currently, Twitter has more than 270 million monthly active users, and it is widely used to discuss the most variety of topics. Due to the large amount of information circulating on Twitter, and the facility to publish and read messag...

Augmented reality combined with adaptive hypermedia plays an important role on providing effective information visualization systems. In this paper, we propose a comprehensive architecture model in order to provide adaptive information visualization systems with augmented reality. We also provide a novel visual metaphor for real-valued, low-dimensi...

Este artigo apresenta um jogo de Realidade Aumentada, no qual ojogador atraves da orientacao do marcador movimenta uma esfera, passandoem cima de todas as letras em uma determinada ordem, com o intuito deformar a palavra certa. O jogo foi escrito em linguagem C, com o auxilio doOpenGL e ARToolKit, utilizando o Visual Studio para implementacao.

One important feature observed in several complex networks is the structure of communities, or modular structure. Detecting communities is still a big challenge for researchers, specially the development of models to deal with dynamic networks. Here, we propose a new method for detecting communities by using a dynamical model. The first step consis...

This short paper proposes the development of three different applications for health education with the aid of Augmented Reality. Some figures of current development prototipes are also show and future works are proposed. We expect these applications will help extend health education to students' homes from all educational stages and expect to mini...

This paper applies Information Visualization and Adaptive Hypermedia techniques to the development of a computational tool to adjust elements of hypermedia, based on the user profile.

Algumas pessoas têm dificuldade em assimilar o conteúdo de livros didáticos e de literatura. Elementos gráficos e sonoros podem auxiliar na compreensão do conteúdo. A utilização de recursos multimídia para a transmissão da informação é umaestratégia cada vez mais utilizada. Essa estratégia prevê a abordagem de um conteúdo a partir de textos, gráfic...

A Realidade Aumentada é apresentada como uma opção para a implementação de jogos inovadores, envolvendo maior flexibilização e exploração das características espaciais para o desenvolvimento cognitivo das pessoas. Este trabalho descreve a implementação de um jogo colaborativo com Realidade Aumentada e discute sua utilização, mostrando suas restriçõ...

Novas realidades no ensino de física. Neste trabalho, discutem-se três possibilidades de inovação no Ensino de Física, baseadas em tecnologias e em estratégias disponíveis. Inicialmente, abordase uma experiência de inverter a tendência dos estudantes de, meramente, copiarem e colarem o material, que está pronto na Internet (download), durante a pro...

Game is a great tool for learning, as it proposes stimulating interest in the student. However, the resources related to games are limited depending on the complexity imposed by certain tasks. This article presents a set of educational games developed with Augmented Reality technologies, allowing more realism and interactivity in the learning proce...

This paper presents several experiments designed to trigger different events of interaction in Augmented Reality systems. Different types of behaviors and actions were considered, including the positions of the markers with respect to video projection, collisions of virtual objects, distances between different markers, occlusion, spatial orientatio...

Este artigo descreve um sistema computacional elaborado para ser ferramenta de ensino de Física do Ensino Médio, com uso de técnicas de Realidade Virtual. Por meio de estratégias psico pedagógicas, fundamentadas no paradigma de Mapas Conceituais, o sistema simula um laboratório virtual que permite ao estudante construir seu conhecimento através da...

A aprendizagem colaborativa presencial e remota vem sendo usada cada vez mais como uma abordagem educacional eficiente. A evolução tecnológica permite, atualmente, replicar e, até mesmo, amplificar características da comunicação interpessoal, mas o problema da manipulação remota de objetos continua sendo difícil de ser resolvido. No entanto, a Real...

O jogo é uma ótima ferramenta de aprendizagem, na medida em que propõe estímulo e interesse ao aluno. Porém, recursos de jogos são limitados devido à complexidade imposta por determinadas tarefas. Este artigo propõe uma série de jogos educacionais desenvolvidos em ambiente de Realidade Aumentada, possibilitando um maior realismo e interatividade, v...

The face-to-face and remote collaborative learning has been successfully used in the educational area. Nowadays, the technological evolution allows the implementation and the improvement of interpersonal communication in networked computer environments, involving chat, audio and video conferencing, but the remote manipulation of objects remains a p...

Games have fascinated people in activities related to entertainment, education, health care, etc. The augmented reality technology, using computational support, brings the game from the computer to the user space, making the interaction friendlier. This paper introduces augmented reality and makes considerations on the ARToolKit software, pointing...

Resumo – Este trabalho apresenta uma solução para visualização de informações relacionadas à tráfego de informações em redes locais e da Internet utilizando a tecnologia de Realidade Aumentada. Abstract – This paper presents a solution for visualization of information related to the traffic of information in local nets and the Internet using the te...

The jigsaw puzzles always fascinated the persons and were used in the cognitive development. Using augmented reality, it is possible to have virtual libraries of three-dimensional jigsaw puzzles, working in the user environment. This paper discusses the use of the augmented reality technology in the development of three-dimensional jigsaw puzzles,...

The face-to-face and remote collaborative learning has been used more and more as an efficient educational approach. The technological evolution allows, now, to replicate and, even, to amplify characteristics of the interpersonal communication, but the remote manipulation of objects remains a problem to be solved. However, the virtual reality and a...

Resumo. Este artigo apresenta a criação de um protótipo que possui como objetivo auxiliar profissionais da área de logística. Para tanto, optou-se por focar no problema de carregamento de veículos e utilizar o algoritmo da Busca Tabu para encontrar a sua solução. Com intuito de facilitar a abstração e compreensão da situação problema e de seus resu...

Games have fascinated people in activities related to entertainment, education, health care, etc. The use of Augmented Reality technology, allows the computer game to be presented in the user space, in a more natural and efficient way. This paper discusses the use Augmented Reality in the development of educational games is illustrated and also pre...

Resumo. Recentemente, estudos têm mostrado que a visualização tridimensional de informações pode ser eficientemente realizada utilizando ambientes de Realidade Virtual e Aumentada. Assim, este trabalho apresenta duas soluções para visualização de informações em Redes de Computadores utilizando estas tecnologias, ressaltando suas características e m...

This paper proposes a computational architecture

This paper describes a system of conduction of vehicles based on images from a wireless camera. It was used Computational Visional to find signals spread on the road. When a signal is found, the system detects it and emits the appropriated command to the car. It was used a toy car to develop a prototype. 1. Introdução A Realidade Aumentada permite...

Resumo -Este artigo apresenta um sistema para visualização de informações em ambiente de Realidade Virtual e Aumentada, denominado InfoVis-VAR (Information Visualization with Virtual and Augmented Reality). Este sistema oferece suporte a diferentes tipos de dados e possibilita a personalização do seu modo de representação. No protótipo desenvolvido...

This work presents a discussion about traditional games for use in entertainment and learning, showing its restrictions and potentialities of evolution in the three-dimensional space. The Augmented Reality is presented as an option for the implementation of innovative games, giving flexibility and exploration for the cognitive development. This wor...

Recently, studies have shown that the three-dimensional information visualization can efficiently be carried through using surrounding of Virtual and Augmented Reality. Thus, this paper presents two solutions for visualization of information in Computer Networks using these technologies, standing out its characteristics and methodologies of develop...

This paper presents a system of conduction and monitoring of vehicles without motorists. The system attached a wireless camera to a car. When the car found a signal, this system detects it and emits the appropriated command to the car. It was used a toy car to develop a prototype. The Augmented Reality was added in the system to provide information...

This paper describes the use of Virtual and Augmented Reality in the Visualization and Simulation of Industrial Automation Systems, discussing the related techniques and showing examples of simulation supported by Virtual Reality and Augmented Reality. The paper presents results and discusses those technologies applied to education and training Res...

This paper presents the creation of a prototype which aims to improve the skills of professional of the logistics area. The research focused in the vehicles shipment problem using Tabu Search algorithm to find the solution. Searching for ways to make easier the abstraction and understanding of the situation problem and their results, techniques of...

Resumo – Este artigo apresenta a criação de um protótipo que possui como objetivo auxiliar profissionais da área de logística. Para tanto, optou-se por focar no problema de carregamento de veículos e utilizar o algoritmo da Busca Tabu para encontrar a sua solução. Com intuito de facilitar a abstração e compreensão da situação problema e de seus res...

This paper discusses the use of the technology of Augmented Reality in educational games, showing that it is possible to create games in local environments as in remote environments, extending pedagogical possibilities and generating more pleasant, motivate and enriched games environments.

Resumo – Este artigo faz uso da tecnologia de Realidade Aumentada na criação de jogos em primeira pessoa, mostrando que é possível, através de um software específico, criar ambientes com interações naturais, proporcionando uma experiência motivadora com o jogador. Palavras-Chave – Jogos, Realidade Aumentada. Abstract – This paper makes use of the t...