Alexandre Cardoso

Federal University of Uberlândia | UFU · Faculty of Electrical Engineering (FEELT)

A evolução da Engenharia de Software, desde sua concepção até o advento das metodologias ágeis, tem impulsionado novas práticas de gerenciamento de projetos, destacando o Agile Short Unified Process (ASUP). Este estudo analisou a aplicação do ASUP em projetos de Pesquisa e Desenvolvimento (P&D) realizados por um grupo de pesquisa em realidade virtu...

O estudo aborda a utilização de software livre, especificamente o Redmine, para gerenciar projetos de Pesquisa e Desenvolvimento (P&D) no contexto da Indústria 4.0. Apresenta-se uma ferramenta de código aberto, que pode ser aplicada na melhoria da eficiência e flexibilidade na condução de projetos P&D dentro deste novo paradigma industrial. No estu...

Virtual Reality (VR) can support postural therapies through proprioceptive assistance and engaging interactive features. Plantar pressure measurements are critical for accurate and individualized diagnosis of gait and posture. In a previous work, we developed an immersive VR environment to support postural therapy and conducted a user study. This s...

Exercícios específicos para a escoliose são eficazes, e a Realidade Virtual (RV) imersiva surge como ferramenta valiosa na reabilitação. Este relato descreve um sistema imersivo de RV para apoiar rotinas fisioterapêuticas voltadas para a manu-tenção postural e o tratamento da escoliose. Um experimento realizado comparou a manutenção de duas autopos...

VR (Virtual Reality) applications have been increasingly adopted in Industry 4.0 practices, and this is established with a perspective towards the future. One of the main pillars of VR concerns interactive features. However, for interaction in VR environments, it is necessary for the designer and/or programmer to face some challenges that are prese...

This paper presents the use of Virtual Reality (VR) to improve the content learning and practice of electrical power stations power station operators, where a training routine was created for them using a tool of the RVCEMIG software, called Routine Editor. With this training routine an operator will go through a self-guided visit, with the objecti...

In the context of the Brazilian electrical sector, there are no references regarding the application of BIM (Building Information Modeling) and GIS (Geographic Information System) in construction and maintenance of Electric Power Substations. Thus, this work proposes the integration of these technologies, since previous experiences in other enginee...

Amputation is a traumatic process where the person needs to start rehabilitation immediately to regain physical independence. Traditionally, rehabilitation periods last up to 12 months and have dropout rates above 35%. Initiatives to train amputees through Augmented Reality (AR) can provide more realistic and immersive experiences. This project pre...

Stroke is one of the most common diseases that lead to impairment of upper limb dexterity. Nowadays, serious games are a common approach to help stroke patient’s recovery. However, the lack of compensatory movement detection, during motor rehabilitation protocols, can lead the patient to learn new and incorrect movement patterns, compromising train...

Nos últimos anos, uma variedade enorme de aplicações baseadas em Realidade Aumentada (RA) foi desenvolvida para uso em dispositivos móveis. Esta tecnologia tem sido procurada também pelas empresas, que visam obter diminuição de custos em diversas atividades, como, por exemplo, tarefas de manutenção. Avaliando-se publicações e aplicações comerciais...

The present work aims to contribute to the evaluation of aspects related to the applicability of affective computing techniques to computerized psychological tests, in order to find the real contributions in the transformation of psychological tests in the office to computerized versions, which are sensitive to the emotional states of the patient....

PurposeThis paper presents an immersive virtual reality solution, combined with tracking devices and biomechanical assessment instruments, directed to the treatment and prevention of scoliosis. The pathology is substantially common, and symptoms tend to get worse leading to complications. However, specific exercises can reduce the progression of se...

Encontrar uma metodologia de desenvolvimento de software que seja aderente às características de fábricas de software é um grande desafio para pesquisadores. Neste sentido, este trabalho apresenta uma metodologia híbrida, denominada Agile Short Unified Process - ASUP. A proposta tem como base elementos extraídos do framework Scrum inseridos nas qua...

A Virtual Reality System provides an intuitive tridimensional user interface, with distinct interaction when compared to a traditional 2D layout, allowing the user to manipulate data similar to the real world. Such systems give the users physical and cognitive immersion, by granting a mental model compatible with field operation. In this work, we p...

Mobile-based virtual reality (VR) is the more affordable way for the general public to experience immersive VR, and text input is a frequent process in mobile VR. Usually, the raycasting selection technique is used to perform this task. However, using this technique may present some limitations. Hence, this short paper aims to briefly present the w...

O treinamento de estudantes e técnicos em mamografia é fundamental para uma alta qualidade de imagens radiológicas, com impacto direto na capacidade de diagnóstico do câncer de mama. Observando a defasagem no treinamento inicial e contínuo dos profissionais desta área por motivos diversos, este trabalho apresenta um recurso educacional aberto para...

As áreas da radiologia diagnóstica e intervencionista utilizam amplamente imagens geradas através de raios X. Como exemplo, pode-se citar a mamografia como exame com base nessa modalidade de geração de imagens. O procedimento de aquisição de imagens é realizado por profissionais que devem ser qualificados para exercer a atividade, bem como devem pa...

The adoption of Virtual Reality (RV) technologies in prototype design and process revision has contributed to multiple industry areas. Nonetheless, the development of VR systems for engineering is a complex task, as it involves specialized teams handling low-level code development. Given these problems, the goal of this study is presenting a method...

Muitos setores têm se beneficiado com a tecnologia de Realidade Virtual (RV), como, por exemplo, as indústrias na aplicação em processos de revisão de desenhos de engenharia. É amplamente atribuída ao treinamento de operadores, arquitetura, engenharia, educação, simulação e prototipagem, pois proporciona um alto nível de imersão e fidelidade na rep...

O Acidente Vascular Encefálico é uma das doenças mais comuns que levam ao comprometimento da destreza dos membros superiores. Novas abordagens terapêuticas, como ambientes virtuais, têm se preocupado com o aprimoramento avaliativo de protocolos individualizados, que integram a reabilitação sensorial para uma maior recuperação funcional de indivíduo...

No campo da arquitetura e da engenharia, os desenhos de projetos fornecem informações relevantes sobre a obra. O surgimento do sistema CAD alterou diversos ramos da indústria de projetos e até hoje é um dos principais métodos utilizados por profissionais da área. Posteriormente, o BIM surgiu como um conceito promissor por possibilitar melhorias grá...

PurposeThis study consists of a systematic review that aims to identify and evaluate the scenario of the use of serious games in the rehabilitation of individuals with Parkinson’s disease.Methods Web searches were conducted on Web of Science, Scopus, PubMed, Bireme, ScienceDirect, IEEE Digital Library, ACM Digital Library, and Google Scholar databa...

This paper presents a text entry technique for mobile-based VR on a one-handed ambiguous keyboard. The one-handed keyboard prototype comprises an alternative 16 keys (4 × 4) custom mechanical keyboard with strong tactile bump switches, 3D printed adapted keycaps, and a camera to track which keys the user’s fingers are hovering over. This technique...

Every establishment is vulnerable to imminent threatening situations. Hence, traditional hands-on evacuation training is paramount to assure the establishments’ safety. However, typical evacuation training has limitations in its ability to reproduce threatening situations. In Health Care Establishments (HCE) such as a hospital, traditional practica...

Power substations play a key role in electrical systems. They aim to ensure system reliability, electrical operation without interruptions and safety and protection for the users and system. In this sense, the knowledge of the main concepts associated with substations is essential for the training of students and engineers who work in this area. Ho...

This project presents the results obtained from a new strategy based on Virtual Reality techniques, which intends to minimize the operational issues caused in electric power substations due to the lack of spatial and functional information on the traditional operation interfaces. For this purpose, a three-dimensional interactive virtual reality env...

In the context of the Brazilian electrical sector, there are no references regarding the application of BIM (Building Information Modeling) and GIS (Geographic Information System) in construction and maintenance of Electric Power Substations projects. Thus, this work proposes the integration of these technologies, since preview experiences in other...

—Because of the limited energy of wireless sensor nodes, the energy loss of communication process affects network performance. In order to prolong the network lifetime and combine the fast ergodicity of the quantum particle swarm, this paper proposes a wireless network routing optimization method to improve the quantum particle swarm, aiming at the...

Many teachers consider vocabulary acquisition to be a low intellectual activity. However, this subject demands substantial time from both teachers and students, since there is a vast number of words to be learned. In this context, one expects that vocabulary acquisition assisted by Immersive Virtual Reality (IVR) could potentially be used as a powe...

Remote inspection is critical for smart factories, power systems and undersea and space exploration, among other domains. However, these applications have conflicting requirements: operators should experience high situation-awareness, implying a considerable amount of data to be presented, while having a minimal sensory load, not to compromise the...

Scoliosis is a pathology that affects a significant part of the world population. Although there is no definitive cure, specific exercises are presented as one of the main available treatments. Simultaneously, Virtual Reality (VR) brings the possibility of real-time simulated interactions through virtual environments and tracking devices. The techn...

A Health Care Establishment (HCE) aims at treating, medicating, curing, and sheltering individuals with health needs. It is not expected that this type of establishment poses a threat to the life of any individual. However, like any other establishment, an HCE is vulnerable to human failures that can represent an imminent danger to an individual’s...

This work presents a Virtual Reality training environment for upper limb amputees. Based on principles of a serious game, the training environment aims to teach the patient how to control a virtual prosthesis, that lately, will be printed and attached to his forearm. Using a tether with different sensors the patient can interact with the virtual en...

Stroke is the most common disease that leads to the dexterity impairment of the upper limbs. Serious games have emerged as an advantageous and enjoyable alternative to rehabilitation treatment when compared to traditional therapies. This work presents the development of a customizable serious game, based on Virtual Reality techniques to achieve a m...

Projects are temporary efforts aimed at getting a final product, whether it is a team or just a designer. These are present in business environments and can result in success or failure. Due to this bias, studies of techniques and methods are a great challenge for researchers, so this paper presents a proposal for a project management strategy appl...

This project shows the results obtained from a new strategy based on Virtual Reality techniques, which intends to minimize the issues caused on the operation of electric power substations due to the lack of spatial and functional information on the traditional operation interfaces. For this purpose, a three-dimensional interactive virtual reality e...

BACKGROUND: Literacy is essential for the development and empowerment of students with intellectual disability. However, such students often present limitations that may interfere in their literacy process. OBJECTIVE: The aim of this research was to evaluate the potential of Virtual Reality as an educational tool to support the literacy process of...

For an immersive Virtual Reality (IVR) application to be more effective, the user needs to feel "present" in it. It is recurrent, though, that the user has an impaired sense of presence. In many cases, this variation can be explained by the Uncanny Valley (UV) theory. In this context, this paper presents a systematic literature review that summariz...

The characteristic of immersion, involvement and motivation have made serious games an important tool to be used in the medical field. However, there are people that, having some sort of physical disability, are not able to, or do not feel motivated to play. This work presents a strategy to support human- computer interactions for children with a d...

Many people worldwide have been experimenting a decrease in their mobility as a result of aging, accidents and degenerative diseases. In many cases, a Powered Wheelchair (PW) is an alternative help. Currently in Brazil, patients can receive a PW from the Unified Health System, following prescription criteria. However, they do not have an appropriat...

Introduction This article presents an innovative system that provides assistance to individuals with Alzheimer’s disease (AD) through the use of a mobile augmented reality (MAR) interface. By using MAR with voice commands and virtual buttons adapted to enable a better human-computer interaction (HCI), this study proposes a system that assists in ph...

Project is a temporary effort undertaken to create a unique product, service, or outcome. Projects are part of any company in any segment and can result in success or failure. Therefore, studies of techniques and methods is a major challenge for researchers. This paper presents a study for adequacy and application of a framework based on agile meth...

Modelos 3D de alto realismo possuem muitas possibilidades de aplicação em diversas áreas. Porém, a modelagem 3D manual demanda tempo e habilidade. Por isto, técnicas de reprodução tridimensional automática estão sendo estudadas, tornando-se cada vez mais avançadas e disponíveis para diversos cen ários e aplicaçoes. Entre elas, destacam-se o escanea...

The main objective of this study has been to perform an extensive systematic review of publications related to augmented reality and how this technology can aid field operations for the telecommunications industry. The expected result is to validate the feasibility of a new proposed framework, which consists of an augmented reality application that...

Digital games are no longer seen as a form of entertainment detrimental to health. They have become an important tool to improve the treatment of patients, ranging from those who are experiencing a serious illness, such as cancer, to those requiring milder procedures such as physiotherapy. However, there are people who are physically disabled and h...

Visualization of Information aims to present methodologies to optimize the cognition of the agent that seeks to identify, segment and learn from information that can be presented in various forms. Based on that, this study aims to identify the availability of information through virtual environments with a focus on Virtual Reality and Augmented Rea...

The choice of a good topology for a deep neural network is a complex task, essential for any deep learning project. This task normally demands knowledge from previous experience, as the higher amount of required computational resources makes trial and error approaches prohibitive. Evolutionary computation algorithms have shown success in many domai...

The characteristic of immersion, involvement and motivation have made serious games an important tool to be used in the medical field. However, there are people that, for some physical disability, are not able to, or don’t feel motivated to play. In this perspective, this work presents a strategy to support human-computer interactions for children...

Several theoretical frameworks and structures have been proposed to contribute to the field of Game Studies or game design. Despite providing some guidance, they lack methods or processes of data manipulation to provide additional information in order to compose a knowledge base and further improve the field. This paper presents a system focused on...