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» Computing approximate PSD factorizations
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ECCV
2004
Springer
14 years 11 months ago
Characterization of Human Faces under Illumination Variations Using Rank, Integrability, and Symmetry Constraints
Photometric stereo algorithms use a Lambertian reflectance model with a varying albedo field and involve the appearances of only one object. This paper extends photometric stereo a...
Shaohua Kevin Zhou, Rama Chellappa, David W. Jacob...
HPCA
2006
IEEE
14 years 10 months ago
Probabilistic counter updates for predictor hysteresis and stratification
Hardware counters are a fundamental building block of modern high-performance processors. This paper explores two applications of probabilistic counter updates, in which the outpu...
Nicholas Riley, Craig B. Zilles
ICALP
2009
Springer
14 years 10 months ago
Revisiting the Direct Sum Theorem and Space Lower Bounds in Random Order Streams
Estimating frequency moments and Lp distances are well studied problems in the adversarial data stream model and tight space bounds are known for these two problems. There has been...
Sudipto Guha, Zhiyi Huang
ICPR
2010
IEEE
14 years 4 months ago
Canonical Patterns of Oriented Topologies
—A common problem in many areas of behavioral research is the analysis of the large volume of data recorded during the execution of the tasks being studied. Recent work has propo...
Walter Mankowski, Ali Shokoufandeh, Dario Salvucci
SMA
2009
ACM
134views Solid Modeling» more  SMA 2009»
14 years 4 months ago
Exact Delaunay graph of smooth convex pseudo-circles: general predicates, and implementation for ellipses
We examine the problem of computing exactly the Delaunay graph (and the dual Voronoi diagram) of a set of, possibly intersecting, smooth convex pseudo-circles in the Euclidean pla...
Ioannis Z. Emiris, Elias P. Tsigaridas, George M. ...