@article {67,
	title = {A Comparison of Spatiotemporal Visualizations for 3D Urban Analytics},
	journal = {IEEE Transactions on Visualization and Computer Graphics},
	volume = {29},
	year = {2023},
	month = {Jan},
	pages = {1277-1287},
	issn = {1941-0506},
	doi = {10.1109/TVCG.2022.3209474},
	url = {https://doi.org/10.1109/TVCG.2022.3209474},
	author = {Mota, Roberta and Ferreira, Nivan and Silva, Julio Daniel and Horga, Marius and Lage, Marcos and Ceferino, Luis and Alim, Usman and Sharlin, Ehud and Miranda, Fabio}
}
@conference {69,
	title = {NCDL: A Framework for Deep Learning on non-Cartesian Lattices},
	booktitle = {NeurIPS 2023},
	year = {2023},
	month = {12/2023},
	address = {New Orleans},
	url = {https://neurips.cc/virtual/2023/poster/71418},
	author = {Joshua Horacsek and Usman Alim}
}
@article {68,
	title = {FastSpline: Automatic Generation of Interpolants for Lattice Samplings},
	journal = {ACM Transactions on Mathematical Software},
	year = {2022},
	month = {dec},
	pages = {In Press},
	keywords = {Interpolation, signal processing, volumetric rendering},
	issn = {0098-3500},
	doi = {10.1145/3577194},
	url = {https://doi.org/10.1145/3577194},
	author = {Horacsek, Joshua and Alim, Usman}
}
@article {66,
	title = {Functional optical coherence tomography at altitude: retinal microvascular perfusion and retinal thickness at 3,800 meters},
	journal = {Journal of Applied Physiology},
	volume = {133},
	year = {2022},
	month = {09/2022},
	pages = {534{\textemdash}545},
	abstract = {Cerebral hypoxia is a serious consequence of several cardiorespiratory illnesses. Measuring the retinal microvasculature at high altitude provides a surrogate for cerebral microvasculature, offering potential insight into cerebral hypoxia in critical illness. In addition, although sex-specific differences in cardiovascular diseases are strongly supported, few have focused on differences in ocular blood flow. We evaluated the retinal microvasculature in males (n = 11) and females (n = 7) using functional optical coherence tomography at baseline (1,130 m) (day 0), following rapid ascent (day 2), and prolonged exposure (day 9) to high altitude (3,800 m). Retinal vascular perfusion density (rVPD; an index of total blood supply), retinal thickness (RT; reflecting vascular and neural tissue volume), and arterial blood were acquired. As a group, rVPD increased on day 2 versus day 0 (P < 0.001) and was inversely related to PaO2 (R2 = 0.45; P = 0.006). By day 9, rVPD recovered to baseline but was significantly lower in males than in females (P = 0.007). RT was not different on day 2 versus day 0 (P > 0.99) but was reduced by day 9 relative to day 0 and day 2 (P < 0.001). RT changes relative to day 0 were inversely related to changes in PaO2 on day 2 (R2 = 0.6; P = 0.001) and day 9 (R2 = 0.4; P = 0.02). RT did not differ between sexes. These data suggest differential time course and regulation of the retina during rapid ascent and prolonged exposure to high altitude and are the first to demonstrate sex-specific differences in rVPD at high altitude. The ability to assess intact microvasculature contiguous with the brain has widespread research and clinical applications.},
	issn = {8750-7587},
	doi = {10.1152/japplphysiol.00132.2022},
	url = {https://doi.org/10.1152/japplphysiol.00132.2022},
	author = {Baker, Jacquie and Safarzadeh, Mohammad Amin and Incognito, Anthony V and Jendzjowsky, Nicholas G and Foster, Glen E and Bird, Jordan D and Raj, Satish R and Day, Trevor A and Rickards, Caroline A and Zubieta-DeUrioste, Natalia and Alim, Usman and Wilson, Richard J A}
}
@article {61,
	title = {Optically Illusive Architecture (OIA): Introduction and Evaluation using Virtual Reality},
	journal = {International Journal of Architectural Computing},
	year = {2021},
	month = {05/2021},
	doi = {10.1177/14780771211016600},
	url = {https://doi.org/10.1177/14780771211016600},
	author = {Seyed Vahab Hosseini and Usman R Alim and Lora Oehlberg and Joshua M Taron}
}
@article {65,
	title = {Sub-band Coding of Hexagonal Images},
	journal = {Signal Processing: Image Communication},
	volume = {99},
	year = {2021},
	month = {09/2021},
	pages = {116494},
	doi = {https://doi.org/10.1016/j.image.2021.116494},
	url = {https://doi.org/10.1016/j.image.2021.116494},
	author = {Md Mamunur Rashid and Usman R. Alim}
}
@conference {60,
	title = {Portal: Design and Fabrication of Incidence-Driven Screens},
	booktitle = {SMI (Shape Modeling International) 2020 Fabrication and Sculpting Event (FASE)},
	year = {2020},
	month = {06/2020},
	publisher = {International Society of Arts, Mathematics and Architecture (ISAMA)},
	organization = {International Society of Arts, Mathematics and Architecture (ISAMA)},
	address = {Online (original location: Strasbourg, France)},
	url = {https://smi2020.sciencesconf.org/resource/page/id/10},
	author = {Seyed Vahab Hosseini and Usman Alim and Ali Mahdavi Amiri and Lora Oehlberg and Joshua Taron}
}
@conference {58,
	title = {Data-spatialized Pavilion: Introducing a Data-driven Design Method based on Principles of Catoptric Anamorphosis},
	booktitle = {SMI (Shape Modeling International) 2019 Fabrication and Sculpting Event (FASE)},
	year = {2019},
	month = {06/2019},
	publisher = {International Society of Arts, Mathematics and Architecture (ISAMA)},
	organization = {International Society of Arts, Mathematics and Architecture (ISAMA)},
	address = {Vancouver, BC},
	url = {https://naka242.github.io/SMIFASE2019/index.html},
	author = {Seyed Vahab Hosseini and Hessam Djavaherpour and Usman Alim and Joshua Taron and Faramarz Samavati}
}
@conference {57,
	title = {Improved Volume Scattering},
	booktitle = {Computer Graphics International (CGI)},
	volume = {Advances in Computer Graphics. CGI 2019. Lecture Notes in Computer Science, vol. 11542},
	year = {2019},
	month = {06/2019},
	publisher = {Springer, Cham.},
	organization = {Springer, Cham.},
	address = {Calgary, AB},
	isbn = {978-3-030-22514-8},
	doi = {10.1007/978-3-030-22514-8_6},
	url = {https://doi.org/10.1007/978-3-030-22514-8_6},
	author = {Haysn Hornbeck and Usman Alim}
}
@conference {63,
	title = {UofC-Bayes: A Bayesian Approach to Visualizing Uncertainty in Likert Scales},
	booktitle = {IEEE Conference on Visual Analytics Science and Technology (VAST Contest Poster)},
	year = {2019},
	month = {10/2019},
	doi = {http://dx.doi.org/10.1109/VAST47406.2019.8986935},
	url = {https://prism.ucalgary.ca/handle/1880/113496},
	author = {Haysn Hornbeck and Usman R. Alim}
}
@conference {64,
	title = {UofC-Bayes: A Bayesian Approach to Visualizing Uncertainty in Radiation Data},
	booktitle = {IEEE Conference on Visual Analytics Science and Technology (VAST Contest Poster)},
	year = {2019},
	month = {10/2019},
	doi = {http://dx.doi.org/10.1109/VAST47406.2019.8986936},
	url = {http://hdl.handle.net/1880/113482},
	author = {Haysn Hornbeck and Usman R. Alim}
}
@conference {48,
	title = {3De Interactive Lenses for Visualization in Virtual Environments},
	booktitle = {IEEE SciVis Short Papers},
	year = {2018},
	month = {10/2018},
	publisher = {IEEE},
	organization = {IEEE},
	address = {Berlin, Germany},
	doi = {10.1109/SciVis.2018.8823618},
	url = {http://hdl.handle.net/1880/110554},
	author = {Roberta Cabral Ramos Mota and Allan Rocha and Julio Daniel Silva and Usman Alim and Ehud Sharlin}
}
@article {45,
	title = {A closed PP form of box splines via Green{\textquoteright}s function decomposition},
	journal = {Journal of Approximation Theory},
	volume = {233},
	year = {2018},
	month = {09/2018},
	pages = {37--57},
	doi = {10.1016/j.jat.2018.04.002},
	url = {https://doi.org/10.1016/j.jat.2018.04.002},
	author = {Joshua J. Horacsek and Usman Alim}
}
@article {47,
	title = {Decal-Lenses: Interactive Lenses on Surfaces for Multivariate Visualization},
	journal = {IEEE Transactions on Visualization and Computer Graphics},
	year = {2018},
	pages = {1-1},
	keywords = {Cameras, Correlation, Data visualization, Decal, Focus+Context, Geometry, Interaction, Lenses, Multivariate, Surfaces, Three-dimensional displays, Two dimensional displays, Visualization},
	issn = {1077-2626},
	doi = {10.1109/TVCG.2018.2850781},
	author = {A. C. A. Rocha and J. D. Silva and U. R. Alim and S. Carpendale and M. C. Sousa}
}
@article {46,
	title = {Illustrative Multivariate Visualization for Geological Modelling},
	journal = {Computer Graphics Forum (Proceedings of EuroVis 2018)},
	volume = {37},
	year = {2018},
	pages = {465-477},
	issn = {1467-8659},
	doi = {10.1111/cgf.13434},
	author = {Rocha, Allan and Mota, Roberta Cabral Ramos and Hamdi, Hamidreza and Alim, Usman R. and Sousa, Mario Costa}
}
@conference {49,
	title = {Smashing Rays: Combining Realistic and Illustrative Visualization},
	booktitle = {IEEE SciVis (SciVis Contest poster)},
	year = {2018},
	month = {10/2018},
	address = {Berlin, Germany},
	author = {Haysn Hornbeck and Usman Alim}
}
@article {36,
	title = {Compactly Supported Biorthogonal Wavelet Bases on the Body Centered Cubic Lattice},
	journal = {Computer Graphics Forum (Proceedings of Eurographics/IEEE-VGTC Symposium on Visualization 2017 (EuroVis 2017))},
	volume = {36},
	year = {2017},
	month = {06/2017},
	doi = {10.1111/cgf.13166},
	url = {http://dx.doi.org/10.1111/cgf.13166 },
	author = {Joshua J. Horacsek and Usman R. Alim}
}
@proceedings {42,
	title = {Comparative Visualizations of Noisy and Filtered Blood Flow from 4D PC-MRI Cardiac Datasets},
	year = {2017},
	month = {10/2017},
	pages = {Posters},
	address = {Phoenix, AZ},
	url = {https://vimeo.com/230837806},
	author = {Fahim Hasan Khan and Allan Rocha and Usman Alim}
}
@article {30,
	title = {Decal-maps: Real-time Layering of Decals on Surfaces for Multivariate Visualization},
	journal = {IEEE Transactions on Visualization and Computer Graphics (Proceedings of IEEE SciVis 2016)},
	volume = {23},
	year = {2017},
	month = {01/2017},
	pages = {821 -- 830},
	keywords = {Decal, Design, Layering, Multivariate, Real-time, Surface, Visualization},
	issn = {1077-2626},
	doi = {10.1109/TVCG.2016.2598866},
	url = {http://ieeexplore.ieee.org/document/7539320/},
	author = {Allan Rocha and Usman Alim and Julio Daniel Silva and Mario Costa Sousa}
}
@conference {37,
	title = {Multivariate Visualization of Oceanography Data Using Decals},
	booktitle = {Workshop on Visualisation in Environmental Sciences (EnvirVis)},
	year = {2017},
	month = {06/2017},
	publisher = {The Eurographics Association},
	organization = {The Eurographics Association},
	address = {Barcelona, Spain},
	isbn = {978-3-03868-040-6},
	doi = {10.2312/envirvis.20171101},
	url = {http://dx.doi.org/10.2312/envirvis.20171101},
	author = {Allan Rocha and Julio Daniel Silva and Usman R. Alim and Mario Costa Sousa}
}
@proceedings {43,
	title = {Optically Illusive Architecture: Producing Depthless Objects Using Principles of Linear Perspective},
	volume = {Proceedings of the 37th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA)},
	year = {2017},
	month = {11/2017},
	pages = {274--283},
	publisher = {Acadia Publishing Company},
	address = {Cambridge, MA},
	keywords = {design methods, form finding, information processing, representation},
	isbn = {978-0692965061},
	url = {http://papers.cumincad.org/cgi-bin/works/paper/acadia17_274},
	author = {Seyed Vahab Hosseini and Joshua M. Taron and Usman Alim}
}
@conference {29,
	title = {Icosahedral Maps for a Multiresolution Representation of Earth Data},
	booktitle = {Vision, Modeling and Visualization (VMV)},
	volume = { [to appear]},
	year = {2016},
	month = {10/2016},
	publisher = {The Eurographics Association},
	organization = {The Eurographics Association},
	address = {Bayreuth, Germany},
	isbn = {978-3-03868-025-3},
	doi = {10.2312/vmv.20161355},
	url = {https://diglib.eg.org/handle/10.2312/vmv20161355},
	author = {Mohammad Imrul Jubair and Usman R. Alim and Niklas R{\"o}ber and John Clyne and Ali Mahdavi-Amiri}
}
@conference {33,
	title = {CINAPACT-Splines: A Family of Infinitely Smooth, Accurate and Compactly Supported Splines},
	booktitle = {International Symposium on Visual Computing 2015},
	year = {2015},
	publisher = {Springer (Bebis G. et al. (eds), Advances in Visual Computing, Lecture Notes in Computer Science, vol 9474)},
	organization = {Springer (Bebis G. et al. (eds), Advances in Visual Computing, Lecture Notes in Computer Science, vol 9474)},
	address = {Las Vegas, NV},
	doi = {10.1007/978-3-319-27857-5_73},
	url = {https://link.springer.com/chapter/10.1007/978-3-319-27857-5_73},
	author = {Bita Akram and Usman Alim and Faramarz Samavati}
}
@mastersthesis {27,
	title = {CINAPACT-Splines: A Family of Infinitely Smooth, Accurate and Compactly Supported Splines},
	volume = {MSc},
	year = {2015},
	month = {09/2015},
	school = {University of Calgary},
	address = {Calgary, AB},
	abstract = {We introduce a class of compactly supported C infinite kernels (CINAPACT-splines) whose integer translates form a shift-invariant reconstruction space that can be tuned to achieve any order of accuracy. CINAPACT-splines resemble traditional B-splines in that higher orders of accuracy are achieved by successive convolutions with a B-spline of degree zero. Unlike B-splines however, the starting point for CINAPACT-splines is a compactly supported bump function that has been properly normalized so that it fulfills the partition of unity criterion. We explore the properties of CINAPACT-splines in reconstructing volumetric data sampled on regular grids. We show that CINAPACT-splines provide similar reconstruction quality and cost compared to some well-established filters, while being infinitely smooth. We further explore the advantages of our filter by implementing a curvature-based transfer function using second derivatives of the filter to demonstrate feature lines of a function. We apply the same technique using filters of smaller support and less cost.},
	url = {http://hdl.handle.net/11023/2418},
	author = {Bita Akram}
}
@article {25,
	title = {Component-wise Interpolation of Solenoidal Vector Fields: A Comparative Numerical Study},
	number = {2015-1079-12},
	year = {2015},
	month = {07/2015},
	institution = {University of Calgary},
	type = {Research Report},
	address = {Calgary, AB},
	issn = {2015-1079-12},
	url = {http://hdl.handle.net/1880/50614},
	author = {Dandong Yin and Usman R. Alim}
}
@article {18,
	title = {Compressive Volume Rendering},
	journal = {Computer Graphics Forum (Proceedings of Eurographics/IEEE-VGTC Symposium on Visualization 2015 (EuroVis 2015))},
	volume = {34},
	year = {2015},
	month = {05/2015},
	pages = {101--110},
	doi = {10.1111/cgf.12622},
	url = {http://dx.doi.org/10.1111/cgf.12622},
	author = {Xiaoyang Liu and Usman R. Alim}
}
@proceedings {28,
	title = {Multiresolution visualization of digital earth data via hexagonal box-spline wavelets},
	year = {2015},
	month = {10/2015},
	publisher = {IEEE},
	address = {Chicago, IL},
	doi = {10.1109/SciVis.2015.7429508},
	url = {http://ieeexplore.ieee.org/document/7429508/},
	author = {Mohammad Imrul Jubair and Usman Alim and Niklas R{\"o}ber and John Clyne and Ali Mahdavi-Amiri and Faramarz Samavati}
}
@conference {19,
	title = {A Quality-Preserving Cartesian to Body-Centered Cubic Downsampling Transform},
	booktitle = {Eurographics Conference on Visualization (EuroVis) Short Papers},
	year = {2015},
	month = {05/2015},
	publisher = {The Eurographics Association},
	organization = {The Eurographics Association},
	address = {Cagliari, Italy},
	url = {http://dx.doi.org/10.2312/eurovisshort.20151119},
	author = {Usman R. Alim and Thiago Valentin de Oliveira}
}
@proceedings {24,
	title = {Operator Discretization in Shift-Invariant Spaces},
	year = {2014},
	month = {06/2014},
	address = {Salt Lake City, UT},
	author = {Usman R. Alim}
}
@conference {5,
	title = {Rendering in Shift-Invariant Spaces},
	booktitle = {Graphics Interface 2013},
	year = {2013},
	month = {05/2013},
	publisher = {CRC Press},
	organization = {CRC Press},
	address = {Regina, SK},
	url = {http://dl.acm.org/citation.cfm?id=2532161},
	author = {Usman R. Alim}
}
@mastersthesis {21,
	title = {Data Processing on the Body-Centered Cubic Lattice},
	volume = {PhD},
	year = {2012},
	month = {07/2012},
	pages = {131},
	school = {Simon Fraser University},
	address = {Burnaby BC, Canada},
	url = {http://summit.sfu.ca/item/12828},
	author = {Usman R. Alim}
}
@article {hossain10,
	title = {Toward High Quality Gradient Estimation on Regular Lattices},
	journal = {IEEE Transactions on Visualization and Computer Graphics},
	volume = {17},
	number = {4},
	year = {2011},
	month = {04/2011},
	pages = {426-439},
	publisher = {IEEE Computer Society},
	address = {Los Alamitos, CA, USA},
	keywords = {Approximation theory, body-centered cubic lattice, box splines, normal reconstruction, orthogonal projection, Taylor series expansion},
	doi = {10.1109/TVCG.2010.37},
	url = {http://doi.ieeecomputersociety.org/10.1109/TVCG.2010.37},
	author = {Zahid Hossain and Usman R. Alim and Torsten M{\"o}ller}
}
@article {alim10,
	title = {Gradient Estimation Revitalized},
	journal = {IEEE Transactions on Visualization and Computer Graphics (Proceedings Visualization / Information Visualization 2010)},
	volume = {16},
	number = {6},
	year = {2010},
	month = {11/2010},
	pages = {1494-1503},
	doi = {10.1109/TVCG.2010.160},
	url = {http://ieeexplore.ieee.org/document/5613491/},
	author = {Usman R. Alim and Torsten M{\"o}ller and Laurent Condat}
}
@conference {20,
	title = {A Fast Fourier Transform with Rectangular Output on the BCC and FCC Lattices},
	booktitle = {Eighth International Conference on Sampling Theory and Applications (SampTA{\textquoteright}09)},
	year = {2009},
	month = {05/2009},
	address = {Marseille, France},
	author = {Usman R. Alim and Torsten Moeller}
}
@article {FAMV:2009:CT,
	title = {High-Quality Volumetric Reconstruction on Optimal Lattices for Computed Tomography},
	journal = {Computer Graphics Forum (Proceedings of Eurographics/IEEE-VGTC Symposium on Visualization 2009 (EuroVis 2009))},
	volume = {28},
	number = {3},
	year = {2009},
	month = {06/2009},
	pages = {1023--1030},
	doi = {10.1111/j.1467-8659.2009.01445.x},
	url = {http://onlinelibrary.wiley.com/doi/10.1111/j.1467-8659.2009.01445.x/abstract},
	author = {Bernhard Finkbeiner and Usman R. Alim and Dimitri Van De Ville and Torsten M{\"o}ller}
}
@article {10.1109/TVCG.2008.201,
	title = {The Lattice-Boltzmann Method on Optimal Sampling Lattices},
	journal = {IEEE Transactions on Visualization and Computer Graphics},
	volume = {15},
	number = {4},
	year = {2009},
	month = {07/2009},
	pages = {630-641},
	publisher = {IEEE Computer Society},
	address = {Los Alamitos, CA, USA},
	keywords = {animation, BCC, flow visualization, optimal regular sampling, physically based modeling, vector field data, Visual simulation, volume modeling},
	issn = {1077-2626},
	url = {http://doi.ieeecomputersociety.org/10.1109/TVCG.2008.201},
	author = {Usman R. Alim and Alireza Entezari and Torsten M{\"o}ller}
}
