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Filters: Format Medium: "application/pdf" Journal Title: "IEEE Visualization" Collection: "ir_uspace"
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CreatorTitleDescriptionSubjectDate
1 Hansen, Charles D.Constrained inverse volume rendering for planetary nebulaeDetermining the three-dimensional structure of distant astronomical objects is a challenging task, given that terrestrial observations provide only one viewpoint. For this task, bipolar planetary nebulae are interesting objects of study because of their pronounced axial symmetry due to fundamental p...Volume rendering; Axial symmetry2004
2 Hansen, Charles D.Interactive translucent volume rendering and procedural modelingDirect volume rendering is a commonly used technique in visualization applications. Many of these applications require sophisticated shading models to capture subtle lighting effects and characteristics of volume metric data and materials. Many common objects and natural phenomena exhibit visual qua...Volume rendering; Volume visualization; Direct volume rendering; Multidimensional transfer functions; Direct manipulation widgets; Graphics hardware2002
3 Hansen, Charles D.Interactive volume rendering using multi-dimensional transfer functions and direct manipulation widgetsMost direct volume renderings produced today employ onedimensional transfer functions, which assign color and opacity to the volume based solely on the single scalar quantity which comprises the dataset. Though they have not received widespread attention, multi-dimensional transfer functions are a v...Volume rendering; Volume visualization; Direct volume rendering; Multidimensional transfer functions; Direct manipulation widgets; Graphics hardware2001
4 Hansen, Charles D.Non-photorealistic volume rendering using stippling techniquesSimulating hand-drawn illustration techniques can succinctly express information in a manner that is communicative and informative. We present a framework for an interactive direct volume illustration system that simulates traditional stipple drawing. By combining the principles of artistic and sci...Volume rendering; Non-photorealistic rendering; Scientific visualization; Medical imaging2002
5 Hansen, Charles D.Scout: a hardware-accelerated system for quantitatively driven visualization and analysisQuantitative techniques for visualization are critical to the successful analysis of both acquired and simulated scientific data. Many visualization techniques rely on indirect mappings, such as transfer functions, to produce the final imagery. In many situations, it is preferable and more powerful ...Visualization systems; Hardware acceleration; Volume rendering; Multivariate visualization2004
6 Hansen, Charles D.Semotus visum: a flexible remote visualization frameworkBy offering more detail and precision, large data sets can provide greater insights to researchers than small data sets. However, these data sets require greater computing resources to view and manage. Remote visualization techniques allow the use of computers that cannot be operated locally. The S...Remote visualization; Semotus Visum2002
7 Hansen, Charles D.Visualization of intricate flow structures for vortex breakdown analysisVortex breakdowns and flow recirculation are essential phenomena in aeronautics where they appear as a limiting factor in the design of modern aircrafts. Because of the inherent intricacy of these features, standard flow visualization techniques typically yield cluttered depictions. The paper addre...2004
8 Hansen, Charles D.Wavelet representation of contour setsWe present a new wavelet compression and multiresolution modeling approach for sets of contours (level sets). In contrast to previous wavelet schemes, our algorithm creates a parametrization of a scalar field induced by its contours and compactly stores this parametrization rather than function valu...Contours; Geometry compression; Isosurfaces; Level sets; Multiresolution methods; Wavelets2001
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