Results 191 to 200 of about 3,242 (211)

Continuous Modulated Shearlet Transform

Advances in Pure and Applied Mathematics, 2022
Summary: We generalize the well-known transforms such as short-time Fourier transform, wavelet transform and shearlet transform and refer it as Continuous Modulated Shearlet Transform. Important properties like Plancherel formula and inversion formula have been investigated. Uncertainty inequalities associated with this transform are presented.
Bansal, Piyush, Kumar, Ajay, Bansal, Ashish   +2 more
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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
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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.
Lakhonchai, P., Sampo, J., Sumetkijakan, S.   +2 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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Nonseparable Shearlet Transform

IEEE Transactions on Image Processing, 2013
Over the past few years, various representation systems which sparsely approximate functions governed by anisotropic features, such as edges in images, have been proposed. Alongside the theoretical development of these systems, algorithmic realizations of the associated transforms are provided.
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Image compression using multidirectional anisotropic transform: Shearlet transform

2012 International Conference on Devices, Circuits and Systems (ICDCS), 2012
It is now widely acknowledged that the geometrical features of the images are essential for many applications including image compression. A novel transform coding technique based on shearlet transform is proposed. A multi directional anisotropic shearlet transform is used to detect the prominent features like edges of the image.
S. Thayammal, D. Selvathi
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The Discrete Shearlet Transform: A New Directional Transform and Compactly Supported Shearlet Frames

IEEE Transactions on Image Processing, 2010
It is now widely acknowledged that analyzing the intrinsic geometrical features of the underlying image is essential in many applications including image processing. In order to achieve this, several directional image representation schemes have been proposed.
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Satellite image denoising using shearlet transform

2016 International Conference on Communication and Signal Processing (ICCSP), 2016
Satellite images are mostly degraded due to the inaccuracy or limitations of the transmission and storage devices. Removal of noise from satellite images are still a challenging task for many researchers. The conventional image denoising algorithms mostly use wavelet transform.
T S Anju, N R Nelwin Raj
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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
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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 A. Bhat, N. A. Sheikh
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