This paper presents a multimodal HCI-based interactive, immersive Computational Fluid Dynamics (CFD) visualization model for indoor environments. In this model, speech and gesture recognition mechanisms were integrate...
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This paper presents a multimodal HCI-based interactive, immersive Computational Fluid Dynamics (CFD) visualization model for indoor environments. In this model, speech and gesture recognition mechanisms were integrated with an immersive Augmented Reality (AR) system for efficient data exploration. The model includes four components: (a) wireless sensor component to monitor the environmental boundary conditions as they change and transmit for further CFD analysis;(b) CFD analysis component to perform simulation with new boundary conditions;(c) multimodal HCI component to aid in data manipulation through integrating both speech and gesture recognition mechanisms, and (d) AR visualization component to track user's movement in real-time and visualize CFD datasets using HMD and magnetic trackers. Such a model will enable effective manipulation and exploration of indoor thermal CFD data in real-time, and will dramatically enhance the way buildings are experienced, managed and operated.
In this paper, we address the potential offered by Virtual Reality and scientific simulation for 3D modeling and immersive visualization of huge genomic sequences. Advanced work on 3D data modeling and structuring is ...
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The advantage of visual data exploration is that the user is directly involved in the process of data mining. There are a large number of information visualization techniques which have been developed over the last de...
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ISBN:
(纸本)7121002159
The advantage of visual data exploration is that the user is directly involved in the process of data mining. There are a large number of information visualization techniques which have been developed over the last decade to support the exploration of large data sets. The octree representation is a well-known hierarchical data structure that can be used to partition the 3D space into cubic voxels of varying sizes. In this paper, we describe a new approach that uses octree technique into data mining system. and design a 3D data exploration environment.
This course reviews concepts and highlights new directions in Geovisualization. We review four levels of integrating geospatial data and geographic information systems (GIS) with scientific and information visualizati...
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ISBN:
(纸本)9781450378017
This course reviews concepts and highlights new directions in Geovisualization. We review four levels of integrating geospatial data and geographic information systems (GIS) with scientific and information visualization (VIS) methods. These include: • Rudimentary: minimal data sharing between the GIS and Vis systems • Operational: consistency of geospatial data • Functional: transparent communication between the GIS and Vis systems • Merged: one comprehensive toolkit environment. We review how to apply both information and scientific visualization fundamentals to the visual display of geospatial and geoinformatics data. Distributed Geovisualization systems that allow for collaborative synchronous and asynchronous visual exploration and analysis of geospatial data via the Web, Internet, and large-screen group-enabled displays are discussed. This includes the application of intelligent agent and spatial data mining technologies. Case study examples are shown in real time during the course.
The aim of the Medical Imaging Interaction Toolkit (MITK) is to facilitate the creation of clinically usable image-based software. Clinically usable software for image-guided procedures and image analysis require a hi...
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ISBN:
(纸本)0819452807
The aim of the Medical Imaging Interaction Toolkit (MITK) is to facilitate the creation of clinically usable image-based software. Clinically usable software for image-guided procedures and image analysis require a high degree of interaction to verify and. if necessary correct results from semi-automatic algorithms. MITK is a class library basing on and extending the Insight Toolkit (ITK) and the visualization Toolkit (VTK). ITK provides, leading-edge registration and segmentation algorithms and forms the algorithmic basis. VTK has powerful visualization capabilities, but only low-level. support for interaction (like picking methods, rotation, movement and scaling of objects). MITK adds support for high level interactions with data like, for example, the interactive construction and modification of data objects. This includes concepts for interactions with multiple states as well as undo-capabilities. Furthermore, VTK is designed to create one kind of view on the data (either one 2D visualization or a 3D visualization). MITK facilitates the realization of multiple, different views oil the same data (like multiple, multiplanar reconstructions and a 3D rendering). Hierarchically structured combinations of any number and type of data objects (image. surface. vessels, etc.) are possible. MITK can handle 3D+t data, which are required for several important medical applications. whereas VTK alone supports only 2D and 3D data. The benefit of MITK is that it supplements those features to ITK and VTK that are required for convenient to use, interactive and by that clinically usable image-based software, and that are outside the scope of both. MITK will be made open-source (http:// ***).
We introduce a new method for simulating and visualizing femur-menisci contact in human knee joint using computer generated 3D models. Knee joint contact analysis is important for understanding or solving clinical pro...
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ISBN:
(纸本)0769522165
We introduce a new method for simulating and visualizing femur-menisci contact in human knee joint using computer generated 3D models. Knee joint contact analysis is important for understanding or solving clinical problems. Traditional knee biomechanical analysis is mostly conducted on a cadaver or based on mathematical descriptions. The lack of 3D graphical visualization makes it difficult to understand the analysis and integrate it into virtual medical simulation systems. Our method addresses this problem by using patient specific knee models and motion data to obtain the contact area information. Our method employs a new physics-based algorithm for menisci deformation and can calculate and visualize knee-menisci contact areas during gait cycles.
Metabolic networks are an important research area in systems biology. To study their behavior, models are built and simulations are performed. Since such models depend on a possibly large number of parameters, sensiti...
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ISBN:
(纸本)0889863970
Metabolic networks are an important research area in systems biology. To study their behavior, models are built and simulations are performed. Since such models depend on a possibly large number of parameters, sensitivity analysis is employed to investigate how sensitive a model is with respect to its parameters and how sensitive the estimated parameters are with respect to the experimental input data. The outputs of the sensitivity analysis are time-varying matrices, which are difficult if not impossible to explore manually. In this paper, a novel approach to visualize time-varying sensitivity matrices generated during simulations of metabolic network models is presented. It is based on making use of multidimensional scaling, a dimension reduction technique, to extract similarity information. Implementation issues are discussed, and experimental results for a particular *** model are shown.
visualization interfaces that offer multiple coordinated views on a particular set of data items are useful for navigating and exploring complex information spaces. In this paper we address the problem of mining text ...
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Electrical capacitance tomography (ECT) has been under rapid development in recent years. However, as a relatively new technology, ECT is far from mature and its applications are rather appliance-dependent, i.e. the s...
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ISBN:
(纸本)0791841731
Electrical capacitance tomography (ECT) has been under rapid development in recent years. However, as a relatively new technology, ECT is far from mature and its applications are rather appliance-dependent, i.e. the sensor design, calibration, and data interpretation etc., depend on the understanding of the specific situations for ECT measurement The authors have experimented several sensing strategies and developed algorithms for 3D image presentation and online iterative image reconstruction, and applied ECT to the measurement of several typical cases of two phase flows, which is reported in this paper.
A common issue in cluster analysis is that there is no single correct answer to the number of clusters, since cluster analysis involves human subjective judgement. Interactive visualization is one of the methods where...
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