Results 131 to 140 of about 569 (169)

Research on a multi-dimensional image information fusion algorithm based on NSCT transform. [PDF]

Front Optoelectron
Su Y, Liang X, Cao D, Yang Z, Peng Y, Zhao M.   +5 more
europepmc   +1 more source

An Integrated GPR B-Scan Preprocessing Model Based on Image Enhancement for Detecting Subsurface Pipes. [PDF]

Sensors (Basel)
Shi Z, Li F, Ma H, Huang H, Wu L, Zhong M.   +5 more
europepmc   +1 more source

The continuous shearlet transform in arbitrary dimensions

, 2008
Dahlke, Stephan, Steidl, Gabriele, Teschke, Gerd   +2 more
openaire   +1 more source

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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.
Wang-Q Lim
exaly   +3 more sources

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.
Wang-Q Lim
exaly   +3 more sources

Uncertainty Principles For The Continuous Quaternion Shearlet Transform

Advances in Applied Clifford Algebras, 2019
In this paper, authors have studied some novel uncertainty principles for the continuous quaternion shearlet transform using the machinery of quaternion convolution, quaternion Fourier transform and operator theory. Besides, the fundamental properties including the Parseval's and reconstruction formulae, the Heisenberg-type uncertainty principles are ...
K Brahim, Bochra Nefzi
exaly   +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

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

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
openaire   +2 more sources