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- Udeepta Bordoloi, Han-Wei Shen
- IEEE Visualization
- 2005

In a visualization of a three-dimensional dataset, the insights gained are dependent on what is occluded and what is not. Suggestion of interesting viewpoints can improve both the speed and efficiency of data understanding. This paper presents a view selection method designed for volume rendering. It can be used to find informative views for a given scene,… (More)

- Udeepta Bordoloi, Han-Wei Shen
- IEEE Visualization
- 2003

In this paper, we present a space efficient algorithm for speeding up isosurface extraction. Even though there exist algorithms that can achieve optimal search performance to identify isosurface cells, they prove impractical for large datasets due to a high storage overhead. With the dual goals of achieving fast isosurface extraction and simultaneously… (More)

- Udeepta Bordoloi, Han-Wei Shen
- Comput. Graph. Forum
- 2002

This paper presents an interactive global visualization technique for dense vector fields using levels of detail. We introduce a novel scheme which combines an error-controlled hierarchical approach and hardware acceleration to produce high resolution visualizations at interactive rates. Users can control the trade-off between computation time and image… (More)

- Guo-Shi Li, Udeepta Bordoloi, Han-Wei Shen
- IEEE Visualization
- 2003

In this paper we present an interactive texture-based technique for visualizing three-dimensional vector fields. The goal of the algorithm is to provide a general volume rendering framework allowing the user to compute three-dimensional flow textures interactively, and to modify the appearance of the visualization on the fly. To achieve our goal, we… (More)

- Han-Wei Shen, Guo-Shi Li, Udeepta Bordoloi
- IEEE Transactions on Visualization and Computer…
- 2004

We present an interactive texture-based algorithm for visualizing three-dimensional steady and unsteady vector fields. The goal of the algorithm is to provide a general volume rendering framework allowing the user to compute three-dimensional flow textures interactively and to modify the appearance of the visualization on the fly. To achieve our goal, we… (More)

- Udeepta Bordoloi, David L. Kao, Han-Wei Shen
- Data Science Journal
- 2004

Novel visualization methods are presented for spatial probability density function data. These are spatial datasets, where each pixel is a random variable, and has multiple samples which are the results of experiments on that random variable. We use clustering as a means to reduce the information contained in these datasets; and present two different ways… (More)

This paper presents a hierarchical algorithm to accelerate 2D LIC computation. A quadtree data structure, combined with vector field simplification metrics, are employed to provide the capability of selective LIC approximation. In the algorithm, each node of the quadtree is associated with a measure of “complexity” corresponding to the local flow field. At… (More)

- Udeepta Bordoloi, David L. Kao, Han-Wei Shen
- Visualization and Data Analysis
- 2004

We present an interactive visualization technique for spatial probability density function data. These are datasets that represent a spatial collection of random variables, and contain a number of possible outcomes for each random variable. It is impractical to visualize all the information at each spatial location as it will quickly lead to a cluttered… (More)

- P. Mandl, Udeepta Bordoloi
- 2011

Today’s graphics processors are highly programmable, massively parallel compute engines. With the development of open, industry standards, parallel programming languages such as OpenCLTM and the continued evolution of heterogeneous computing, general-purpose graphics processing units (GPGPUs) offer exciting new capabilities for the embedded market. This… (More)

Radiation-hardened processors are designed to be resilient against soft errors but such processors are slower than Commercial OffThe-Shelf (COTS) processors as well significantly costlier. In order to mitigate the high costs, software techniques such as task re-executions must be deployed together with adequately hardened processors to provide reliability.… (More)

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