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COMGEO
1999
ACM
14 years 9 months ago
Simplifying spline models
We present a new approach for simplifying models composed of rational spline patches. Given an input model, the algorithm computes a new approximation of the model in terms of cub...
M. Gopi, Dinesh Manocha
PR
2002
202views more  PR 2002»
14 years 9 months ago
Illumination color covariant locale-based visual object retrieval
Search by Object Model -- finding an object inside a target image -- is a desirable and yet difficult mechanism for querying multimedia data. An added difficulty is that objects c...
Mark S. Drew, Ze-Nian Li, Zinovi Tauber
TIT
2002
146views more  TIT 2002»
14 years 9 months ago
Least squares estimation of 2-D sinusoids in colored noise: Asymptotic analysis
This paper considers the problem of estimating the parameters of real-valued two-dimensional (2-D) sinusoidal signals observed in colored noise. This problem is a special case of t...
Guy Cohen, Joseph M. Francos
PAMI
2007
122views more  PAMI 2007»
14 years 9 months ago
Analyzing Image Structure by Multidimensional Frequency Modulation
—We develop a mathematical framework for quantifying and understanding multidimensional frequency modulations in digital images. We begin with the widely accepted definition of t...
Marios S. Pattichis, Alan C. Bovik
IAJIT
2010
112views more  IAJIT 2010»
14 years 8 months ago
Variable Rate Steganography in Gray Scale Digital Images Using Neighborhood Pixel Information
: Steganography is the art of hiding the fact that communication is taking place, by hiding information in other information. Security has always been a major concern since time im...
Moazzam Hossain, Sadia Al Haque, Farhana Sharmin