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ICIP
1999
IEEE
14 years 9 months ago
Computing Isotropic Local Contrast from Oriented Pyramid Decompositions
Working with contrast instead of luminance can facilitate numerous image processing and analysis tasks. Unfortunately, a common definition of contrast suitable for all situations ...
Stefan Winkler, Pierre Vandergheynst
CVPR
2007
IEEE
14 years 9 months ago
What makes a good model of natural images?
Many low-level vision algorithms assume a prior probability over images, and there has been great interest in trying to learn this prior from examples. Since images are very non G...
Yair Weiss, William T. Freeman
ICPR
2010
IEEE
13 years 10 months ago
Natural Material Recognition with Illumination Invariant Textural Features
Abstract—A visual appearance of natural materials fundamentally depends on illumination conditions, which significantly complicates a real scene analysis. We propose textural fe...
Pavel Vacha, Michael Haindl
ISBI
2006
IEEE
14 years 8 months ago
Spatial resolution properties of nonquadratically regularized image reconstruction for PET
This paper examines the spatial resolution properties of nonquadratically regularized image reconstruction methods for positron emission tomography (PET). It is well known that qu...
Sangtae Ahn, Richard M. Leahy
ICIP
2008
IEEE
14 years 9 months ago
General-purpose reduced-reference image quality assessment based on perceptually and statistically motivated image representatio
Divisive normalization has been recognized as a successful approach to model the perceptual sensitivity of biological vision. It also provides a useful image representation that i...
Qiang Li, Zhou Wang