Results 71 to 80 of about 430 (164)

The cosparse analysis model and algorithms [PDF]

open access: yes, 2013
After a decade of extensive study of the sparse representation synthesis model, we can safely say that this is a mature and stable field, with clear theoretical foundations, and appealing applications.
Gribonval, Rémi   +8 more
core   +1 more source

Bendlet Transform Based Adaptive Denoising Method for Microsection Images. [PDF]

open access: yesEntropy (Basel), 2022
Mei S   +5 more
europepmc   +1 more source

Shearlets and sparse representation for microresistivity borehole image inpainting

open access: yes, 2018
Microresistivity image logs from wireline tools commonly include nonmeasured gaps corresponding to the spaces between electrode-carrying pads in contact with the borehole wall.
Peter Elkington, Said Assous
core   +1 more source

Automated Diagnosis and Assessment of Cardiac Structural Alteration in Hypertension Ultrasound Images. [PDF]

open access: yesContrast Media Mol Imaging, 2022
Raghavendra U   +11 more
europepmc   +1 more source

Noise Suppression and Edge Preservation for Low-Dose COVID-19 CT Images Using NLM and Method Noise Thresholding in Shearlet Domain. [PDF]

open access: yesDiagnostics (Basel), 2022
Diwakar M   +7 more
europepmc   +1 more source

Deep Prior Approach for Room Impulse Response Reconstruction. [PDF]

open access: yesSensors (Basel), 2022
Pezzoli M   +5 more
europepmc   +1 more source

Texture Classification and Retrieval Using Shearlets and Linear Regression

open access: yes, 2015
Statistical modeling of wavelet subbands has frequently been used for image recognition and retrieval. However, traditional wavelets are unsuitable for use with images containing distributed discontinuities, such as edges. Shearlets are a newly developed
Tao, Dacheng   +9 more
core   +1 more source

Irregular shearlet frames

open access: yes, 2009
This thesis discusses the necessary and sufficient conditions for irregular shearlet systems tobe frames for L2(R2). For this purpose, the notions of densities for irregular shearlet systems areintroduced, and they are used as efficient tools for observing the connection between the geometryof discrete sets of space-scale-shear parameters associated ...
Kittipoom, Pisamai   +1 more
openaire   +1 more source

On Quaternion Shearlet Transforms

open access: yes, 2018
In this paper, we introduce the notion of quaternion shearlet transform- which is an extension of the ordinary shearlet transform. Firstly, we study the fundamental properties of quaternion shearlet transforms and then establish some basic results including Moyal's and inversion formulae.
Shah, Firdous A., Tantary, Azhar Y.
openaire   +2 more sources

Home - About - Disclaimer - Privacy