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RT
1999
Springer
13 years 11 months ago
Interactive Ray-Traced Scene Editing using Ray Segment Trees
This paper presents a ray tracer that facilitates near-interactive scene editing with incremental rendering; the user can edit the scene both by manipulating objects and by changin...
Kavita Bala, Julie Dorsey, Seth J. Teller
VIS
2006
IEEE
122views Visualization» more  VIS 2006»
14 years 8 months ago
Representing Higher-Order Singularities in Vector Fields on Piecewise Linear Surfaces
Accurately representing higher-order singularities of vector fields defined on piecewise linear surfaces is a non-trivial problem. In this work, we introduce a concise yet complet...
Wan-Chiu Li, Bruno Vallet, Nicolas Ray, Bruno L...
BILDMED
2008
124views Algorithms» more  BILDMED 2008»
13 years 8 months ago
Non-equispaced Fourier Transform Vs. Polynomial-Based Metal Artifact Reduction in Computed Tomography
We propose a method, which treats metal artifact reduction in CT by sinogram restoration as a problem of scattered data interpolation. Corrupted sinogram entries are discarded and ...
Bärbel Kratz, Tobias Knopp, Jan Müller 0...
PCM
2009
Springer
188views Multimedia» more  PCM 2009»
13 years 12 months ago
Nonlocal Edge-Directed Interpolation
In this paper, we proposed a new edge-directed image interpolation algorithm which can preserve the edge features and natural appearance of images efficiently. In the proposed sche...
Xinfeng Zhang, Siwei Ma, Yongbing Zhang, Li Zhang,...
ASPDAC
2010
ACM
119views Hardware» more  ASPDAC 2010»
13 years 5 months ago
VISA: versatile impulse structure approximation for time-domain linear macromodeling
Abstract-- We develop a rational function macromodeling algorithm named VISA (Versatile Impulse Structure Approximation) for macromodeling of system responses with (discrete) time-...
Chi-Un Lei, Ngai Wong