"Sub-band Coding of Hexagonal Images", Signal Processing: Image Communication, vol. 99, pp. 116494, 09/2021.
, "UofC-Bayes: A Bayesian Approach to Visualizing Uncertainty in Likert Scales", IEEE Conference on Visual Analytics Science and Technology (VAST Contest Poster), 10/2019.
, "UofC-Bayes: A Bayesian Approach to Visualizing Uncertainty in Radiation Data", IEEE Conference on Visual Analytics Science and Technology (VAST Contest Poster), 10/2019.
, "Compactly Supported Biorthogonal Wavelet Bases on the Body Centered Cubic Lattice", Computer Graphics Forum (Proceedings of Eurographics/IEEE-VGTC Symposium on Visualization 2017 (EuroVis 2017)), vol. 36, issue 3, 06/2017.
preprint (28.34 MB)
Sage worksheet and filter weights (105.59 KB)
Slides from EuroVis (14.92 MB)
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"Multivariate Visualization of Oceanography Data Using Decals", Workshop on Visualisation in Environmental Sciences (EnvirVis), Barcelona, Spain, The Eurographics Association, 06/2017.
preprint (2.48 MB)
presentation slides (8.12 MB)
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"Icosahedral Maps for a Multiresolution Representation of Earth Data", Vision, Modeling and Visualization (VMV), vol. [to appear], Bayreuth, Germany, The Eurographics Association, 10/2016.
preprint (12.67 MB)
slides (5.78 MB)
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"Component-wise Interpolation of Solenoidal Vector Fields: A Comparative Numerical Study", Alim, Usman, no. 2015-1079-12, Calgary, AB, University of Calgary, 07/2015.
PDF (301.53 KB)
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"Compressive Volume Rendering", Computer Graphics Forum (Proceedings of Eurographics/IEEE-VGTC Symposium on Visualization 2015 (EuroVis 2015)), vol. 34, issue 3, pp. 101--110, 05/2015.
slides (20.91 MB)
preprint (7.32 MB)
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"A Quality-Preserving Cartesian to Body-Centered Cubic Downsampling Transform", Eurographics Conference on Visualization (EuroVis) Short Papers, Cagliari, Italy, The Eurographics Association, 05/2015.
fast forward (5.69 MB)
supplementary material (1.55 MB)
slides (9.73 MB)
preprint (1.14 MB)
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"Operator Discretization in Shift-Invariant Spaces", International Conference on Spectral and Higher Order Methods, Salt Lake City, UT, 06/2014.
Abstract (82.31 KB)
slides (20.64 MB)
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"Rendering in Shift-Invariant Spaces", Graphics Interface 2013, Regina, SK, CRC Press, 05/2013.
preprint (11.6 MB)
high resolution images (12.02 MB)
slides (13.93 MB)
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"Data Processing on the Body-Centered Cubic Lattice", School of Computing Science, vol. PhD, Burnaby BC, Canada, Simon Fraser University, pp. 131, 07/2012.
preprint (16.08 MB)
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"Toward High Quality Gradient Estimation on Regular Lattices", IEEE Transactions on Visualization and Computer Graphics, vol. 17, issue 4, no. 4, Los Alamitos, CA, USA, IEEE Computer Society, pp. 426-439, 04/2011.
preprint (12.98 MB)
derivation of filter weights (484.64 KB)
slides from VisWeek 2011 (32.08 MB)
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"Gradient Estimation Revitalized", IEEE Transactions on Visualization and Computer Graphics (Proceedings Visualization / Information Visualization 2010), vol. 16, issue 6, no. 6, pp. 1494-1503, 11/2010.
preprint (17.78 MB)
MATLAB filtering code (5.07 MB)
slides from VisWeek 2010 (3.54 MB)
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"A Fast Fourier Transform with Rectangular Output on the BCC and FCC Lattices", Eighth International Conference on Sampling Theory and Applications (SampTA'09), Marseille, France, 05/2009.
preprint (738.5 KB)
slides (997.2 KB)
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"High-Quality Volumetric Reconstruction on Optimal Lattices for Computed Tomography", Computer Graphics Forum (Proceedings of Eurographics/IEEE-VGTC Symposium on Visualization 2009 (EuroVis 2009)), vol. 28, issue 3, no. 3, pp. 1023--1030, 06/2009.
supplementary figures (345.35 KB)
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"The Lattice-Boltzmann Method on Optimal Sampling Lattices", IEEE Transactions on Visualization and Computer Graphics, vol. 15, issue 4, no. 4, Los Alamitos, CA, USA, IEEE Computer Society, pp. 630-641, 07/2009.
preprint (6.3 MB)
smoke simulation videos (33.17 MB)
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