usman

2017
Horacsek, J. J., and U. R. Alim, "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. PDF icon preprint (28.34 MB)Package icon Sage worksheet and filter weights (105.59 KB)PDF icon Slides from EuroVis (14.92 MB)
Rocha, A., J. Daniel Silva, U. R. Alim, and M. Costa Sousa, "Multivariate Visualization of Oceanography Data Using Decals", Workshop on Visualisation in Environmental Sciences (EnvirVis), Barcelona, Spain, The Eurographics Association, 06/2017. PDF icon preprint (2.48 MB)PDF icon presentation slides (8.12 MB)
2016
Jubair, M. Imrul, U. R. Alim, N. Röber, J. Clyne, and A. Mahdavi-Amiri, "Icosahedral Maps for a Multiresolution Representation of Earth Data", Vision, Modeling and Visualization (VMV), vol. [to appear], Bayreuth, Germany, The Eurographics Association, 10/2016. PDF icon preprint (12.67 MB)PDF icon slides (5.78 MB)
2015
Yin, D., and U. R. Alim, "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 icon PDF (301.53 KB)
Liu, X., and U. R. Alim, "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. PDF icon slides (20.91 MB)PDF icon preprint (7.32 MB)
Alim, U. R., and T. Valentin de Oliveira, "A Quality-Preserving Cartesian to Body-Centered Cubic Downsampling Transform", Eurographics Conference on Visualization (EuroVis) Short Papers, Cagliari, Italy, The Eurographics Association, 05/2015. File fast forward (5.69 MB)Package icon supplementary material (1.55 MB)PDF icon slides (9.73 MB)PDF icon preprint (1.14 MB)
2014
Alim, U. R., "Operator Discretization in Shift-Invariant Spaces", International Conference on Spectral and Higher Order Methods, Salt Lake City, UT, 06/2014. PDF icon Abstract (82.31 KB)PDF icon slides (20.64 MB)
2013
Alim, U. R., "Rendering in Shift-Invariant Spaces", Graphics Interface 2013, Regina, SK, CRC Press, 05/2013. PDF icon preprint (11.6 MB)Binary Data high resolution images (12.02 MB)PDF icon slides (13.93 MB)
2012
Alim, U. R., "Data Processing on the Body-Centered Cubic Lattice", School of Computing Science, vol. PhD, Burnaby BC, Canada, Simon Fraser University, pp. 131, 07/2012. PDF icon preprint (16.08 MB)
2011
Hossain, Z., U. R. Alim, and T. Möller, "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. PDF icon preprint (12.98 MB)Package icon derivation of filter weights (484.64 KB)PDF icon slides from VisWeek 2011 (32.08 MB)
2010
Alim, U. R., T. Möller, and L. Condat, "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. PDF icon preprint (17.78 MB)Binary Data MATLAB filtering code (5.07 MB)PDF icon slides from VisWeek 2010 (3.54 MB)
2009
Alim, U. R., and T. Moeller, "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. PDF icon preprint (738.5 KB)PDF icon slides (997.2 KB)
Finkbeiner, B., U. R. Alim, D. Van De Ville, and T. Möller, "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. PDF icon supplementary figures (345.35 KB)
Alim, U. R., A. Entezari, and T. Möller, "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. PDF icon preprint (6.3 MB)Binary Data smoke simulation videos (33.17 MB)