Results 181 to 190 of about 779,839 (204)

Abstract Shearlet Transform [PDF]

Bulletin of the Belgian Mathematical Society - Simon Stevin, 2015
Approximately ten years ago the generalization of wavelets to shearlets started its development. This paper extends shearlets (introduced in 2005 to find efficient extensions for the classical wavelet transform, see among others \textit{G. Kutyniok} and \textit{D. Labate} [``Construction of regular and irregular shearlet frames'', J.
Kamyabi-Gol, R.A., Atayi, V.
exaly   +4 more sources

Some of the next articles are maybe not open access.

Related searches:

Clifford Valued Shearlet Transform

Advances in Applied Clifford Algebras, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sharma, Jyoti, Singh, Shivam Kumar
openaire   +2 more sources

SHEARLET TRANSFORMS AND DIRECTIONAL REGULARITIES

International Journal of Wavelets, Multiresolution and Information Processing, 2010
In an effort to characterize uniform and pointwise Hölder regularities, we obtain necessary decay rates and sufficient decay rates of continuous and discrete shearlet transform across scales. They are the same rates as those of the Hart Smith and continuous curvelet transforms.
P. Lakhonchai, Jouni Sampo, Songkiat Sumetkijakan   +2 more
openaire   +3 more sources

3-D Discrete Shearlet Transform and Video Processing

IEEE Transactions on Image Processing, 2012
In this paper, we introduce a digital implementation of the 3-D shearlet transform and illustrate its application to problems of video denoising and enhancement. The shearlet representation is a multiscale pyramid of well-localized waveforms defined at various locations and orientations, which was introduced to overcome the limitations of traditional ...
Demetrio Labate, Pooran Singh Negi
exaly   +4 more sources

THE UNCERTAINTY PRINCIPLE ASSOCIATED WITH THE CONTINUOUS SHEARLET TRANSFORM

International Journal of Wavelets, Multiresolution and Information Processing, 2008
Finding optimal representations of signals in higher dimensions, in particular directional representations, is currently the subject of intensive research. Since the classical wavelet transform does not provide precise directional information in the sense of resolving the wavefront set, several new representation systems were proposed in the past ...
Stephan Dahlke, Gitta Kutyniok, Peter Maass, Chen Sagiv, Hans-Georg Stark, Gerd Teschke   +5 more
openaire   +3 more sources

On the shearlet transform using hyperbolic functions

2014
Summary: In this paper, we focus on the study of shearlet transform which is defined by using the hyperbolic functions. As a result, we check an admissibility condition such that implies the reconstruction formula. To this end, we use the concept of the classical shearlet, which indicates the position and direction of a singularity.
Zare, Masoumeh, Sadeghinezhad, Mina, KamyabiGol, Rajabali   +2 more
openaire   +2 more sources

Shearlet and contourlet transforms for analysis of electrocardiogram signals

Computer Methods and Programs in Biomedicine, 2018
Cardiac arrhythmia is an abnormal variation in the heart electrical activity that affects millions of people worldwide. Electrocardiogram (ECG) signals have been widely used to assess and diagnose cardiac abnormalities.A novel methodology based on shearlet and contourlet transforms for automatically classify an input ECG signal into different heart ...
Paulo H. J. Amorim, Thiago F. Moraes, Dalton Ieda Fazanaro, Jorge Silva 0001, Hélio Pedrini   +4 more
openaire   +3 more sources

Discrete linear canonical shearlet transform

International Journal of Wavelets, Multiresolution and Information Processing
In this paper, we introduce the continuous and discrete version of the linear canonical shearlet transform (LCST). The authors begin with the definition of the LCST and then establish a relationship between the linear canonical transform (LCT) and the LCST.
Younis Ahmad Bhat, Neyaz A. Sheikh
openaire   +3 more sources

A saliency detection model using shearlet transform

Multimedia Tools and Applications, 2014
Visual attention is a mechanism to derive possible locations of objects or regions from natural scenes, and many studies have tried to simulate this mechanism to build saliency detection models, which would accelerate the course of many applications, such as object location, detection and recognition, image segmentation, retrieval and so on.
Lei Bao, Jianjiang Lu, Yang Li 0015, Yanwei Shi   +3 more
openaire   +2 more sources

The Radon transform intertwines wavelets and shearlets

Applied and Computational Harmonic Analysis, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bartolucci, Francesca, De Mari, Filippo, De Vito, Ernesto, Odone, Francesca   +3 more
openaire   +1 more source