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  1. No Access

    Chapter

    Case Studies for Working with Domain Experts

    The collaboration with domain experts concentrates always on an application domain where the experts work. Usually, they provide the data and directions of research that require visualization support. This cha...

    Johanna Beyer, Charles Hansen, Mario Hlawitschka in Foundations of Data Visualization (2020)

  2. Article

    Open Access

    FluoRender: joint freehand segmentation and visualization for many-channel fluorescence data analysis

    Image segmentation and registration techniques have enabled biologists to place large amounts of volume data from fluorescence microscopy, morphed three-dimensionally, onto a common spatial frame. Existing too...

    Yong Wan, Hideo Otsuna, Holly A. Holman, Brig Bagley, Masayoshi Ito in BMC Bioinformatics (2017)

  3. No Access

    Article

    Ray-driven dynamic working set rendering

    Ray tracing a volume scene graph composed of multiple point-based volume objects (PBVO) can produce high quality images with effects such as shadows and constructive operations. A naive approach, however, woul...

    David Chisnall, Min Chen, Charles Hansen in The Visual Computer (2007)

  4. No Access

    Chapter

    Isosurface Extraction for Large-Scale Data Sets

    Isosurface extraction is an important technique for visualizing large scale three-dimensional scalar fields. Recent years have seen many acceleration methods for isosurface extraction including the space space...

    Yarden Livnat, Charles Hansen, Christopher R. Johnson in Data Visualization (2003)

  5. No Access

    Chapter

    Development of an Electric Energy Market Simulator

    The paper outlines the development of an electricity market operation simulator (EMOS) that can be used by competing market participants as well as independent system operators and independent market operators...

    Atif Debs, Charles Hansen, Yu-Chi Wu in The Next Generation of Electric Power Unit… (2001)

  6. No Access

    Chapter and Conference Paper

    Dynamic Acceleration Structures for Interactive Ray Tracing

    Acceleration structures used for ray tracing have been designed and optimized for efficient traversal of static scenes. As it becomes feasible to do interactive ray tracing of moving objects, new requirements ...

    Erik Reinhard, Brian Smits, Charles Hansen in Rendering Techniques 2000 (2000)

  7. No Access

    Chapter and Conference Paper

    Known and Potential High Performance Computing Applications in Computer Graphics and Visualization

    This paper describes past, current, and future applications in computer graphics and scientific visualization which utilize high performance computers. First, a historical perspective will be presented which g...

    Charles Hansen in High Performance Computing for Computer Graphics and Visualisation (1996)

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    Article

    Impact of gigabit network research on scientific visualization

    Networks based on the High Performance Parallel Interface (HIPPI) will become the norm at Los Alamos National Laboratory. The ramification of such a high-speed networking paradigm on scientific visualization a...

    Charles Hansen, Stephen Tenbrink in The Visual Computer (1993)

  9. No Access

    Chapter and Conference Paper

    High Speed Trinocular Stereo for Mobile-Robot Navigation

    We present recent advancements in our passive trinocular stereo system. These include a technique for calibrating and rectifying in a very efficient and simple manner the triplets of images taken for trinocular s...

    Charles Hansen, Nicholas Ayache in Highly Redundant Sensing in Robotic Systems (1990)

  10. No Access

    Chapter and Conference Paper

    CAD-Based Computer Vision: The Automatic Generation of Recognition Strategies

    Three-dimensional model-based computer vision uses geometric models of objects and sensed data to recognize objects in a scene. Likewise, Computer Aided Design (CAD) systems are used to interactively generate ...

    Charles Hansen, Thomas Henderson in CAD Based Programming for Sensory Robots (1988)