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» Nonlinear image representation using divisive normalization
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MVA
2008
130views Computer Vision» more  MVA 2008»
13 years 5 months ago
Fast pattern recognition using normalized grey-scale correlation in a pyramid image representation
The ability to quickly locate one or more instances of a model in a grey scale image is of importance to industry. The recognition/localization must be fast and accurate. In this p...
W. James MacLean, John K. Tsotsos
NIPS
1998
13 years 6 months ago
Modeling Surround Suppression in V1 Neurons with a Statistically Derived Normalization Model
We examine the statistics of natural monochromatic images decomposed using a multi-scale wavelet basis. Although the coefficients of this representation are nearly decorrelated, t...
Eero P. Simoncelli, Odelia Schwartz
IPMI
2005
Springer
13 years 10 months ago
Linearization of Mammograms Using Parameters Derived from Noise Characteristics
A method is proposed for converting digitized mammograms to a normalized representation, in which pixel values are linearly related to the logarithm of x-ray exposure. This method ...
Nico Karssemeijer, Peter R. Snoeren, Wei Zhang
AVBPA
2003
Springer
171views Biometrics» more  AVBPA 2003»
13 years 10 months ago
Illumination Normalization Using Logarithm Transforms for Face Authentication
Abstract. In this paper we propose an algorithm that can easily be implemented on small form factor devices to perform illumination normalization in face images captured under vari...
Marios Savvides, B. V. K. Vijaya Kumar
DAGSTUHL
2007
13 years 6 months ago
Nonlinear Approximation and Image Representation using Wavelets
We address the problem of finding sparse wavelet representations of high-dimensional vectors. We present a lower-bounding technique and use it to develop an algorithm for computi...
Sudipto Guha, Boulos Harb