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WSCG
2004
148views more  WSCG 2004»
13 years 11 months ago
Inverse Rendering of Polished Materials under Constant Complex Uncontrolled Illumination
Inverse rendering infers realistic descriptions of illumination and material properties from photographs. However, the applicability of state of the art inverse rendering algorith...
Michael Bang Nielsen, Anders Brodersen
MFCS
2004
Springer
14 years 3 months ago
All Superlinear Inverse Schemes Are coNP-Hard
How hard is it to invert NP-problems? We show that all superlinearly certified inverses of NP problems are coNP-hard. To do so, we develop a novel proof technique that builds dia...
Edith Hemaspaandra, Lane A. Hemaspaandra, Harald H...
ICIP
2000
IEEE
14 years 11 months ago
Model-Based Inverse Halftoning with Wavelet-Vaguelette Deconvolution
In this paper, we demonstrate based on the linear model of [1, 2] that inverse halftoning is equivalent to the well-studied problem of deconvolution in the presence of colored noi...
Ramesh Neelamani, Robert Nowak, Richard G. Baraniu...
SIAMMA
2010
81views more  SIAMMA 2010»
13 years 4 months ago
The Interior Transmission Eigenvalue Problem
We consider the inverse problem of determining the spherically symmetric index of refraction n(r) from a knowledge of the corresponding transmission eigenvalues (which can be deter...
Fioralba Cakoni, David Colton, Drossos Gintides
ICIP
2003
IEEE
14 years 11 months ago
Inverse halftoning by decision tree learning
Inverse halftoning is the process to retrieve a (gray) continuous-tone image from a halftone. Recently, machinelearning-based inverse halftoning techniques have been proposed. Dec...
Hae Yong Kim, Ricardo L. de Queiroz