In this paper we present new functionality we added to the Chromium framework. When driving tiled displays using a sort-first configuration based on the Tilesort stream procession unit (SPU) the performance bottleneck...
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Recent advances in algorithms and graphics hardware have opened the possibility to render caustics at interactive rates on commodity PCs. This paper extends on this work in that it presents a new method to directly re...
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Interfaces for users on the web are usually created using standard HTML-technologies. Although dynamic text-based features are widely available on the web (e.g. by using DHTML) there are still some limitations in the ...
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ISBN:
(纸本)9789541600405
Interfaces for users on the web are usually created using standard HTML-technologies. Although dynamic text-based features are widely available on the web (e.g. by using DHTML) there are still some limitations in the user experience when using dynamic graphical elements. In this article we focus on a GUI-prototype using Scalable Vector graphics (SVG) as an interface to an existing Digital Library. First we describe the current situation of the running system and explain some of the limitations in the GUI. Thereafter we compare the document-format with other electronic formats. An overview of the prototype and a description of the used framework will be given in the main section of this article. Finally we are going to show an improved version of a search task using an SVG-category viewer. The currently supported SVG-recommendation (SVG 1.1) by the SVG-plugins have some limitations. The upcoming release will solve some of the problems and introduce new features related to data-handling and database access. An outlook of these new features and lessons learned in implementing the prototype will close the article.
Sketching communicates ideas rapidly through approximate visual images with low overhead (pencil and paper), no need for precision or specialized knowledge, and ease of low-level correction and revision. In contrast, ...
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ISBN:
(纸本)1595933646
Sketching communicates ideas rapidly through approximate visual images with low overhead (pencil and paper), no need for precision or specialized knowledge, and ease of low-level correction and revision. In contrast, most 3D computer modeling systems are good at generating arbitrary views of precise 3D models and support high-level editing and revision. The SKETCH application described in this paper attempts to combine the advantages of each in order to create an environment for rapidly conceptualizing and editing approximate 3D scenes. To achieve this, SKETCH uses simple non-photorealistic rendering and a purely gestural interface based on simplified line drawings of primitives that allows all operations to be specified within the 3D world.
The algorithm of rear projection of noisy image is considered. Different types of filtration for suppression of noise are observed. Quantitative assessment of speed of the software implementation of the proposed algor...
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The algorithm of rear projection of noisy image is considered. Different types of filtration for suppression of noise are observed. Quantitative assessment of speed of the software implementation of the proposed algorithms is performed.
As 3D graphics environment becomes the standards for most computer systems, it is natural to seek a 3D input device for manipulating an object in a 3D virtual world. Unlike 2D interface, however, 3D interface creates ...
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In this work we present several visualization approaches for analyzing acoustic behavior inside a room. Our methods are based on the results of the phonon tracing algorithm. For a simulated phonon map we examine the i...
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In this paper we give a survey on topology- and feature-based flow visualization methods. After an introduction into the respective methodologies and a basic classification of techniques, we will focus on practical as...
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We present a LOD rendering technique for large, textured terrain, which is well-suited for recent GPUs. In a preprocess, we tile the domain, and we compute for each tile a discrete set of LODs using a nested mesh hier...
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Robust delineation of short-axis cardiac magnetic resonance images (MRI) is a fundamental precondition for functional heart diagnostics. Segmentation of the myocardium and the left ventricular blood pool allows for th...
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ISBN:
(纸本)9783540321361
Robust delineation of short-axis cardiac magnetic resonance images (MRI) is a fundamental precondition for functional heart diagnostics. Segmentation of the myocardium and the left ventricular blood pool allows for the analysis of important quantitative parameters. Modelbased segmentation methods based on representative image data provide an inherently stable tool for this *** present an implementation and evaluation of 3-D Active Appearance Models for the segmentation of the left ventricle using actual clinical case images. Models created from varying random data sets have been evaluated and compared with manual segmentations.
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