Browsing Exact and Earth Sciences by Author "Maciel, Anderson"
Now showing items 1-20 of 20
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Augmenting analytics : use case studies of situated data visualization towards decision-making
Guarese, Renan Luigi Martins (2020) [Dissertation]The present work proposes the use of information visualization techniques allied to an Augmented Reality user interface to provide information that helps professionals to analyze spatially situated data where it was ... -
Automatic generation of patient-specific 3D models of organs using an unified deep learning approach
Torres, Laura Amaya (2020) [Dissertation]Reconstruction of 3D shapes from images using convolutional neural networks (CNN) has become a very studied field in recent years and has demonstrated great performance. Rigid and non-rigid objects have been reconstructed ... -
Characterizing affordances using AR for laparoscopic surgeries and challenges of planning a mixed reality remote collaboration application
Negrão, Matheus Dias (2024) [Dissertation]The advantages of Minimally Invasive Abdominal Surgery (MIAS) over traditional open surgery include shorter recovery time, less blood loss, and less postoperative pain and complications. However, laparoscopic surgeries are ... -
Characterizing visual acuity in the use of head mounted displays
Fontoura, Vladimir Soares da (2022) [Dissertation]There, ophthalmology has several tools to assess and correct a person’s vision. In VR, when wearing an HMD, even a user with normal vision is challenged by additional hur dles that affect the virtual environment’s perceptual ... -
Collaborative 3D interactions and their application on virtual, augmented and mixed reality interfaces
Grandi, Jerônimo Gustavo (2018) [Thesis]Spatial object manipulation is one of the most common tasks in 3D environments. It is the action of changing position, rotation and scale properties of virtual elements. The intangibility of the virtual requires the use ... -
Designing tactile vocabularies for human-computer interaction
Oliveira, Victor Adriel de Jesus (2014) [Dissertation]This thesis presents a study about tactile languages in human-computer interaction and a novel approach for vibrotactile prefixation. We intended to analyse how the choices made during the design process of tactile ... -
Explorando a fronteira da tomada de decisões : realidade virtual e habilidades espaciais no planejamento estratégico
Geraldo Neto, Jerson (2024) [Dissertation]O uso de cartas topográficas para orientação não é uma tarefa fácil exigindo capacidades específicas associadas à correspondência com o mundo real influenciadas pelas habilidades espaciais. Usualmente, como solução recorre-se ... -
Haptic interfaces and their application on computer mediated tactile communication
Oliveira, Victor Adriel de Jesus (2018) [Thesis]The sense of touch not only is a channel for acquiring information about the environment around us, it is also our most social sense. However, haptic interaction is usually implemented as a gimmick feature in modern ... -
A levels-of-precision approach for physics-based soft tissues modeling
Silva, Daniele Fernandes e (2015) [Dissertation]Computational simulation of surgical environments have been widely used usually for trainings, improving essential skills and minimizing errors in surgical procedures. As these environments are always looking for a more ... -
Medical image analysis based on mobile and virtual reality interfaces
Venson, José Eduardo (2017) [Dissertation]A radiologia é especialidade médica mais informatizada, graças a difusão de protocolos e a digitalização dos processos. Com os avanços da tecnologia, o diagnóstico por imagens se mantém em constante evolução e tais mudanças ... -
Modelagem de aparência baseada em biofísica para tecidos do fígado humano
Nunes, Augusto Luengo Pereira (2019) [Thesis]A representação gráfica de tecidos humanos é uma importante demanda para aplicações de áreas como ensino, entretenimento e treinamento médico. Frequentemente, a simulação de tais materiais envolve considerar características ... -
Modelagem de articulações para humanos virtuais baseada em anatomia
Maciel, Anderson (2001) [Dissertation]Técnicas de Processamento de Imagens e de Computação Gráfica vêm sendo empregadas há bastante tempo para o diagnóstico por imagens em Medicina. Mais recentemente, aplicações baseadas em modelos anatômicos, tanto extraídos ... -
Multidimensional similarity search for 2D-3D medical data correlation and fusion
Grandi, Jerônimo Gustavo (2014) [Dissertation]Images of the inner anatomy are essential for clinical practice. To establish a correlation between them is an important procedure for diagnosis and treatment. In this thesis, we propose an approach to correlate within-modality ... -
Patient specific mesh generation
Rampon, Wagner Gonçalves (2016) [Dissertation]This work presents a study about medical-volume segmentation and a solution to generate patient-specific meshes to use in patient-specific surgery simulations. Patientspecific meshes are useful assets for surgery planning ... -
Rendering baseado em amostragem de BRDF de órgaos vivos por videolaparoscopia
Nunes, Augusto Luengo Pereira (2014) [Dissertation]Cirurgias minimamente invasivas correspondem a uma importante especialidade da Medicina, cuja aplicação em larga escala depende do treinamento de novos cirurgiões em habilidades específicas que podem ser aprimoradas através ... -
Selection in 2D and 3D environments with levels of precision and progressive refinement
Debarba, Henrique Galvan (2012) [Dissertation]Selection is one of the four fundamental forms of interaction in a virtual world. It is the ability of the user to specify objects in the virtual environment for subsequent actions. The literature is rich in immediate ... -
Simulação eficiente de cortes em objetos deformáveis baseados em partículas
Berndt, Iago Uilian (2018) [Dissertation]A simulação de cortes em corpos deformáveis tem sido estudada em computação gráfica há mais de duas décadas. Existem muitas soluções satisfatórias, no entanto, muitas de suas aplicações, como a simulação cirúrgica, exigem ... -
Sistema de visualização do interior de objetos com estruturas internas para simulação de cirurgias
Balreira, Dennis Giovani (2015) [Dissertation]Simuladores cirúrgicos possibilitam a médicos e estudantes a visualização de órgãos humanos representados com alto grau de realismo. Trata-se de um grande avanço que reduz o tempo e os custos na formação desses profissionais, ... -
A study on wrist-based haptic weight conveyance in immersive virtual environments
Calepso, Aimee Sousa (2020) [Dissertation]Physical properties of objects are some of the features that are lost when users are immersed in today’s virtual environments that usually only provide visual and auditory stimuli. In a quest to recover the physical ... -
Touching is believing : exploring physics-based simulation and haptics to feel virtual worlds
Salazar, David Steeven Villa (2019) [Dissertation]Modeling the real is a responsibility which different fields assumed through history, from philosophy to physics. Although the objective is similar, the strategies used to model real- world are different from field to ...