Results 141 to 150 of about 593,236 (165)

SCALE-FREE LUBY TRANSFORM CODES

International Journal of Bifurcation and Chaos, 2012
This paper reports the characteristics and performance of a new type of Luby Transform codes, namely scale-free Luby Transform (SF-LT) codes. In the SF-LT codes, the degree of the encoded symbol follows a modified power-law distribution. Moreover, the complexity and decoding performance of SF-LT codes are compared with LT codes based on robust soliton
Yuli Zhao, Francis Chung-Ming Lau, Zhiliang Zhu 0001, Hai Yu 0001   +3 more
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Shearlets as Multi-scale Radon Transforms

Sampling Theory in Signal and Image Processing, 2017
It is shown that the 2D-shearlet transform is the composition of the affine Radon transform, a 1D-wavelet transform and a 1D-convolution. This is applied to give an alternative proof of the fact that the shearlet transform is able to resolve the wavefront set associated with the unit disc.
BARTOLUCCI, FRANCESCA, De Mari, Filippo, De Vito, Ernesto, Odone, Francesca   +3 more
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Normal Multi-scale Transforms for Curves

Foundations of Computational Mathematics, 2011
The \textit{normal multi-scale transform} gives a recursive prediction-correction method of representing a curve \({\mathcal C}\) in the plane. Starting with a set of samples \({\mathbf v}^0\) of \({\mathcal C}\), the \(j\)-th level of recursion is obtained from the previous level by applying a fixed subdivision scheme \(S\) to \({\mathbf v}^{j-1}\) to
Stanislav Harizanov, Peter Oswald, Tatiana Shingel   +2 more
openaire   +1 more source

Scale, frequency, time, and the scale transform

[1992] IEEE Sixth SP Workshop on Statistical Signal and Array Processing, 2003
The author develops the relationship between time, frequency, and scale, and their respective operators and representations. A scale operator is proposed and its eigenfunctions are obtained. This leads to the scale transform. The convolution and correlation theorems for scale are developed.
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To Reach Transformative Scale, Transform the Conversation

2014
Scaling impact is much bigger than scaling an enterprise.
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Crystallographic scale transformations

Philosophical Magazine B, 1992
Abstract Quasi-periodic structures have strictly speaking no three-dimensional space group symmetry. Their symmetry group is in fact a space group in a higher dimensional space. Besides this symmetry there may also be other invariances, in particular scale symmetry.
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Note on the Scale Transformation

Physical Review D, 1971
We derive a simple dimensional relation on the canonical energy-momentum tensor. This relation is used to express the deficiency of the scale invariance. It is shown that the scale transformation is not compatible with the Lorentz covariance in some cases which lie within the framework of the renormalizable field theory.
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Scale-Invariant Transform

Korean Journal of Computational & Applied Mathematics, 1995
Scale Invariant Transforms are defined for both one- and two-dimensioned input functions. These have the desirable properties of linearity and invariance to scale change of the input.
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From transformation to normalisation: An exploratory study of a large-scale agile transformation

Journal of Information Technology, 2023
Kieran Conboy, Noel Carroll
exaly  

Evaluation System Transformation of Multi-Scale Cultivated Land Quality and Analysis of Its Spatio-Temporal Variability

Sustainability, 2021
Gengxing Zhao, Yinshuai Li, Chunyan Chang   +2 more
exaly