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CORR
2010
Springer
66views Education» more  CORR 2010»
13 years 7 months ago
Efficient Dealiased Convolutions without Padding
Algorithms are developed for calculating dealiased linear convolution sums without the expense of conventional zero-padding or phase-shift techniques. For one-dimensional in-place ...
John C. Bowman, Malcolm Roberts
TIP
2010
154views more  TIP 2010»
13 years 2 months ago
Efficient Fourier-Wavelet Super-Resolution
Super-resolution (SR) is the process of combining multiple aliased low-quality images to produce a high-resolution high-quality image. Aside from registration and fusion of low-res...
M. Dirk Robinson, Cynthia A. Toth, Joseph Y. Lo, S...
PR
2008
90views more  PR 2008»
13 years 7 months ago
Fast computation of geometric moments using a symmetric kernel
This paper presents a novel set of geometric moments with symmetric kernel (SGM) obtained using an appropriate transformation of image coordinates. By using this image transformat...
Chong-Yaw Wee, Paramesran Raveendran, R. Mukundan
ICIP
2004
IEEE
14 years 9 months ago
Quaternion wavelets for image analysis and processing
Using the concepts of two-dimensional Hilbert transform and analytic signal, we construct a new quaternion wavelet transform (QWT). The QWT forms a tight frame and can be efficien...
Wai Lam Chan, Hyeokho Choi, Richard G. Baraniuk
ICASSP
2011
IEEE
12 years 11 months ago
Computationally efficient regularized acoustic imaging
Sparse recovery techniques have been shown to produce very accurate acoustic images, significantly outperforming traditional deconvolution approaches. However, so far these propo...
Flavio P. Ribeiro, Vitor H. Nascimento