CEIG12

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https://diglib.eg.org/handle/10.2312/896

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Browsing CEIG12 by Subject "Applications"

Now showing 1 - 5 of 5
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    An Application to Interact with 3D Models Reconstructed from Medical Images
    (The Eurographics Association, 2012) Paulano, F.; Pulido, R.; Jiménez, J. J.; Isabel Navazo and Gustavo Patow
    Although the reconstruction of 3D models from medical images is not an easy task, there are many algorithms to perform it. However, the reconstructed models are usually large, have a lot of outliers and have not a correct topology. For that reason, the algorithms used to interact with them must be fast and robust. In this paper, we present an application that enables the interaction with models reconstructed from medical images. The application uses Marching Cubes to generate triangle soups from the medical images. Then, the user can define models by selecting a set of triangles. Once the models have been defined, the application allows to interact with them. In addition, a detailed collision detection is calculated between the models in the scene in order not only to avoid that models in the scene collide, but also to determine which triangles are overlapping. In addition, the calculation of distances and nearest points provides visual aid when the user is interacting with the models.
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    Kinamo: Gait Analysis System
    (The Eurographics Association, 2012) Martínez, H.; Gil-Gómez, J. A.; Martínez-Gramage, J.; Juan, M. C.; Isabel Navazo and Gustavo Patow
    The gait analysis is a fundamental technique for functional assessment of patients with gait problems. This analysis is generally available to few patients because the systems needed to carry it out have a high cost. In this paper, we present a novel system, Kinamo, which allows to decrease drastically the cost when performing the gait analysis using Kinect cameras, which not only allows the reduction of cost, but also facilitates the acquisition conditions.
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    Population Dynamics Visualization
    (The Eurographics Association, 2012) Lozano, Miguel; García-Fernández, Ignacio; Orduña, Juan Manuel; Isabel Navazo and Gustavo Patow
    In this work we present a graphic, interactive system to validate population dynamics models through hypothesis (simulation results) and radiocarbon samples selection and process. The goal of the graphical tool is to allow the combination of different hypotheses (on the wavefront speed) in a single scenario, so that a more preceise selection of radiocarbon samples reduces global error of the mathematical model.
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    A Survey on Development Tools for Mobile Augmented Reality
    (The Eurographics Association, 2012) Rovelo, Gustavo; Abad, Francisco; Camahort, Emilio; Isabel Navazo and Gustavo Patow
    Augmented Reality (AR) applications have become more popular beyond the research laboratory due to recent technological breakthroughs in computer hardware and mobile devices. Users are starting to interact with virtual content mixed with real environments at their offices, homes, and schools using their mobile phones. For this growing market, developers have first to decide the platform in which they will develop the application (e.g. Apple iOS or Android). Then they must decide whether start writing the application from scratch using only platform native tools, or using one of the available Software Development Kits (SDKs), or using high-level authoring tools for the chosen platform. Besides, developers have to face different AR related issues according to the application's requirements: markers, barcodes or general image tracking, geolocation, efficient rendering of 3D objects, and designing a robust GUI for the target devices. To help developers and researchers to start writing mobile AR applications, this survey identifies the main features of several freeware and commercial SDKs and authoring tools.
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    Ventricular Puncture Trainer
    (The Eurographics Association, 2012) Pandiella, Imanol Muñoz; Monclús, Eva; Brunet, Pere; Conesa, Gerard; Isabel Navazo and Gustavo Patow
    The learning process in neurosurgery is a large and difficult task based on experimentation, being ventriculostomy not an exception. We have developed a virtual reality system to help training novel surgeons on this kind of operation. The system consists of the simulation of the surgery using a haptic device and a subsequent 3D visual inspection of the surgical trajectory. Our main objective was to proof that the tactile sensation produced by our system was enough realistic for the surgeons. We carried out a demonstration session in a medical workshop where all surgeons attending the workshop used the system with a very enthusiastic response about the perception experimented through the system.