Based on the hypothesis of one-to-one relationship between the external symptoms of epileptic fits and the abnormal cerebral functioning which causes it, the computerized study of epileptic fit video tapes brings new ...
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ISBN:
(纸本)0819424285
Based on the hypothesis of one-to-one relationship between the external symptoms of epileptic fits and the abnormal cerebral functioning which causes it, the computerized study of epileptic fit video tapes brings new information on abnormal neuron activity. This insight will improve specialist's analysis in their diagnoses.
This paper describes an approach for the interactive creation and configuration of plant monitors and controls, It is based on top of three basic services, which were built to solve several often found problems: Fluid...
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ISBN:
(纸本)0819424285
This paper describes an approach for the interactive creation and configuration of plant monitors and controls, It is based on top of three basic services, which were built to solve several often found problems: Fluids for general man machine interaction, IAM, an intelligent measurement and control service and a platform independent real-time operating system for distributed applications. The described solution combines these services to allow an interactive configuration management and the execution of the;resulting model.
Many applications demand the capability of retrieval based on image content. A classification mechanism is needed to categorize images based on feature. similarity. An effective classification of the images can suppor...
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ISBN:
(纸本)0819424285
Many applications demand the capability of retrieval based on image content. A classification mechanism is needed to categorize images based on feature. similarity. An effective classification of the images can support efficient retrieval of images, In this paper, we investigate a feature-based approach to image clustering and retrieval. Four different texture-based feature sets of images are extracted using Haar and Daubechies wavelet transforms. Using multiresolution property of wavelets, we extract the features at different levels. The experimental results of our clustering approach on air photo images are reported.
We present a conceptual model for interaction in exploratory datavisualization systems. This model extends interaction to systems that use geometry, texture, color, and sound to present data to the user. Such systems...
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ISBN:
(纸本)0819424285
We present a conceptual model for interaction in exploratory datavisualization systems. This model extends interaction to systems that use geometry, texture, color, and sound to present data to the user. Such systems need to be highly interactive and user centered. We extend interaction to utilize not only geometry, but also color and sound representations of data. Our conceptual model supports interaction in multiple representational spaces. A representational space is a space, such as a color space or a sound space, that is used in the representation of data. The model extends the conventional visualization output pipeline, separating the data from its representations. Interaction operations can be performed on either part of the pipeline.
Symmetric multiprocessor systems (SMPs) are the desktop systems of the future. As they become more widely used, application developers will need to make better use of them. Merely providing threading will be insuffici...
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ISBN:
(纸本)0819424285
Symmetric multiprocessor systems (SMPs) are the desktop systems of the future. As they become more widely used, application developers will need to make better use of them. Merely providing threading will be insufficient. Companies will need to provide applications that parallelize portions of code and use the processors in SMPs To their full extent. This will have a much more dramatic effect on improving performance. Before this can be achieved however, tools must be developed which aid programmers, who may have little or no experience in programming parallel systems, to debug and performance tune their applications. Our goal is to improve the technology available through interactive computational steering and to develop techniques that will be valuable for all types of concurrent systems not just SMPs. This will be done through integrated operation visualization, data highlighting, interactive computational steering, and by concentrating an the data in a parallel system rather than on the processors or code.
This paper presents a structure and set of tools to address the needs of groups of scientists working on large, time-dependent simulations. It describes a direct manipulation, 3D steering environment that is integrate...
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ISBN:
(纸本)0819424285
This paper presents a structure and set of tools to address the needs of groups of scientists working on large, time-dependent simulations. It describes a direct manipulation, 3D steering environment that is integrated with a controller for instrumenting parallel computations, collecting output, and passing it in binary made between heterogeneous machines, The instrumentation allows collection of data at chosen points in the model and control of the computation through changes of parameters or insertion of alternate data. The steering interface and controller are joined with a library of collaborative communication tools, With these tools a user may steer a simulation and share both the steering input and visual output with one or several colleagues, The tools permit the trading of steering and visualization tools within the group. In addition a lime-dependent steering interface has been introduced. Here time is treated on exactly the same basis as the spatial dimensions so there is a 4D environment, 3 shown spatially and one through animation. The steering interface is built upon a flexible visualization/analysis system. This permits the immediate display of time-dependent results from the dynamic simulations and refined interaction with the results to bring out the character and correlations of multivariate data. The user can then launch new simulations at any stage in this exploration using the visualization to define and focus the simulation parameters, region of interest, and time frame.
We present an interactive software tool for manipulating image data, especially high resolution multi-spectral solar movies and images from several different instruments. This tool contains procedures for distortion r...
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ISBN:
(纸本)0819424285
We present an interactive software tool for manipulating image data, especially high resolution multi-spectral solar movies and images from several different instruments. This tool contains procedures for distortion removal for ground based solar movies, correlation tracking, image alignments, data compression, 3-D Fourier filtering, interactive viewing of space/time slices in movies, and browsing through (x,y,t) data cubes. This is a complete public domain package based on X windows and Unix which is currently running on Silicon Graphics and Digital Equipment workstations. These software tools are freely available to the international solar community. Many components are also applicable to image and movie analysis in astrophysics, space physics, and earth sciences. They are available with documentation via our web pages under http://***. ***.
A novel layered visualization model is proposed to provide a systematic approach for visualizing and manipulating information with complex structure, A heterogeneous multiple level composite container type concept is ...
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ISBN:
(纸本)0819424285
A novel layered visualization model is proposed to provide a systematic approach for visualizing and manipulating information with complex structure, A heterogeneous multiple level composite container type concept is introduced to model any arbitrary complex data structure. The necessary visualization and manipulation strategies are also provided within the model. Based on the model, an efficient application-independent visualization engine has been designed and implemented. A type wrapper concept is used to provide a general application interface. Applications can easily interact with the visualization engine by registering application-dependent type wrappers into the engine. The engine has been used as the graphical interface to a distributed object-oriented multimedia database management system.
Software written in the Java programming language is platform independent, remotely executable and downloadable on demand In this paper, we describe a toolkit developed in Java for the purpose of visualizing and analy...
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ISBN:
(纸本)0819424285
Software written in the Java programming language is platform independent, remotely executable and downloadable on demand In this paper, we describe a toolkit developed in Java for the purpose of visualizing and analyzing biomedical images. It is comprised of a number of class libraries that enable selection, viewing, manipulation and analysis of biomedical images. Java's class libraries and special features such as interfaces, multithreading etc., are extensively used in the design and implementation of the toolkit. The current version of the visualization toolkit supports viewing of JPEG and GIF images only. A medical image viewer developed using this toolkit can be used by doctors in hospitals, offices or at any other locations using a Java-enabled web browser running on a variety of hardware/software platforms.
At the IS&T and SPIE 96 conference, the author reported a successful cooperative visualization case study that involved using an internet web-browser for data dissemination and datavisualization applications betw...
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ISBN:
(纸本)0819424285
At the IS&T and SPIE 96 conference, the author reported a successful cooperative visualization case study that involved using an internet web-browser for data dissemination and datavisualization applications between the U.S. and Japanese offices. This cooperative visualization effort using computers and the web-browser has been evaluated, and it has pointed the way to the current research involving the use of the World Wide Web environment for realtime simulation and interactive visualization. Since the spring of 1996, the author has been using Fujitsu's new multi-processor supercomputer VPP300 for fast numerical model simulations and data generations. Meanwhile, the web technology has been advancing very quickly, and it now provides many tools and methods for the scientific visualization. In the summer of 1996, the author began to work on a prototype for a realtime supercomputing interactive visualization system based on the available World Wide Web browser tools and a Fujitsu visualization software known as VisLink. The intranet version of this system was completed in December 1996, and the internet version has been developed and will be completed in the summer of 1997. Design issues and a case study of the prototype will be discussed in this paper.
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