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Displaying 1-9 out of 9 total
Visualization of Morse Connection Graphs for Topologically Rich 2D Vector Fields
Found in: IEEE Transactions on Visualization and Computer Graphics
By Andrzej Szymczak,Levente Sipeki
Issue Date:December 2013
pp. 2763-2772
Recent advances in vector field topologymake it possible to compute its multi-scale graph representations for autonomous 2D vector fields in a robust and efficient manner. One of these representations is a Morse Connection Graph (MCG), a directed graph who...
 
Element-Free Elastic Models for Volume Fitting and Capture
Found in: Computer Vision and Pattern Recognition, IEEE Computer Society Conference on
By Jaeil Choi, Andrzej Szymczak, Greg Turk, Irfan Essa
Issue Date:June 2006
pp. 2245-2252
We present a new method of fitting an element-free volumetric model to a sequence of deforming surfaces of a moving object. Given a sequence of visual hulls, we iteratively fit an element-free elastic model to the visual hull in order to extract the optima...
 
Subdomain Aware Contour Trees and Contour Evolution in Time-Dependent Scalar Fields
Found in: Shape Modeling and Applications, International Conference on
By Andrzej Szymczak
Issue Date:June 2005
pp. 136-144
For time-dependent scalar fields, one is often interested in topology changes of contours in time. In this paper, we focus on describing how contours split and merge over a certain time interval. Rather than attempting to describe all individual contour sp...
 
Robust Morse Decompositions of Piecewise Constant Vector Fields
Found in: IEEE Transactions on Visualization and Computer Graphics
By Andrzej Szymczak,Eugene Zhang
Issue Date:June 2012
pp. 938-951
In this paper, we introduce a new approach to computing a Morse decomposition of a vector field on a triangulated manifold surface. The basic idea is to convert the input vector field to a piecewise constant (PC) vector field, whose trajectories can be com...
 
Extraction of Topologically Simple Isosurfaces from Volume Datasets
Found in: Visualization Conference, IEEE
By Andrzej Szymczak, James Vanderhyde
Issue Date:October 2003
pp. 10
There are numerous algorithms in graphics and visualization whose performance is known to decay as the topological complexity of the input increases. On the other hand, the standard pipeline for 3D geometry acquisition often produces 3D models that are top...
 
Implant Sprays: Compression of Progressive Tetrahedral Mesh Connectivity
Found in: Visualization Conference, IEEE
By Renato B. Pajarola, Jarek Rossignac, Andrzej Szymczak
Issue Date:October 1999
pp. 53
Irregular tetrahedral meshes, which are popular in many engineering and scientific applications, often contain a large number of vertices. A mesh of V vertices and T tetrahedra requires 48·V bits or less to store the vertex coordinates, 4·T·log 2 (V) bits ...
 
Visualization of Morse Connection Graphs for Topologically Rich 2D Vector Fields
Found in: IEEE Transactions on Visualization and Computer Graphics
By Andrzej Szymczak,Levente Sipeki
Issue Date:December 2013
pp. 2763-2772
Recent advances in vector field topologymake it possible to compute its multi-scale graph representations for autonomous 2D vector fields in a robust and efficient manner. One of these representations is a Morse Connection Graph (MCG), a directed graph who...
 
Fitting solid meshes to animated surfaces using linear elasticity
Found in: ACM Transactions on Graphics (TOG)
By Andrzej Szymczak, Jaeil Choi
Issue Date:January 2009
pp. 1-10
Computing correspondence between time frames of a time-dependent 3D surface is essential for the understanding of its motion and deformation. In particular, it can be a useful tool in compression, editing, texturing, or analysis of the physical or structur...
     
Grow & fold: compression of tetrahedral meshes
Found in: Proceedings of the fifth ACM symposium on Solid modeling and applications (SMA '99)
By Andrzej Szymczak, Jarek Rossignac
Issue Date:June 1999
pp. 54-64
The problem of interconnect architecture arises when an array of processors needs to be integrated on one chip. With the deep sub-micron technology, devices become cheap while wires are expensive. On the other hand, high performance systems require the sho...
     
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