Results 81 to 90 of about 1,159 (170)

Optimal Deep Learning Architecture for Automated Segmentation of Cysts in OCT Images Using X-Let Transforms. [PDF]

Diagnostics (Basel), 2023
Darooei R, Nazari M, Kafieh R, Rabbani H.   +3 more
europepmc   +1 more source

Continuous curvelet transform

Applied and Computational Harmonic Analysis, 2005
Candès, Emmanuel J., Donoho, David L.
openaire   +1 more source

Automatic Choroidal Segmentation in Optical Coherence Tomography Images Based on Curvelet Transform and Graph Theory. [PDF]

J Med Signals Sens, 2023
Eghtedar RA, Esmaeili M, Peyman A, Akhlaghi M, Rasta SH.   +4 more
europepmc   +1 more source

Curvelet Transform-Based Sparsity Promoting Algorithm for Fast Ultrasound Localization Microscopy. [PDF]

IEEE Trans Med Imaging, 2022
You Q, Trzasko JD, Lowerison MR, Chen X, Dong Z, ChandraSekaran NV, Llano DA, Chen S, Song P.   +8 more
europepmc   +1 more source

Speckle Noise Reduction in Optical Coherence Tomography Using Two-dimensional Curvelet-based Dictionary Learning

Journal of Medical Signals and Sensors, 2017
The process of interpretation of high-speed optical coherence tomography (OCT) images is restricted due to the large speckle noise. To address this problem, this paper proposes a new method using two-dimensional (2D) curvelet-based K-SVD algorithm for ...
Mahdad Esmaeili, Alireza Mehri Dehnavi, Hossein Rabbani, Fedra Hajizadeh   +3 more
doaj  

Adaptive filter and threshold for image denoising in new generation wavelet

Ho Chi Minh City Open University Journal of Science - Engineering and Technology, 2016
In reality, the nature images have the noise values because of many reasons. These values make the quality of images to decrease. Wavelet transform is proposed for denoising and it gives the better results.
Vo Thi Hong Tuyet
doaj  

Minkowski curvelets and wave equations

, 2012
We define a new type of wavelet frame adapted to the study of wave equations, that we call Minkowski curvelets, by reference to the curvelets introduced by Cand s, Demanet and Donoho. These space-time, strongly anisotropic, directional wavelets have a Fourier support which does not intersect the light-cone; their maximal size is proportional to the ...
openaire   +2 more sources

Optimized Convolutional Neural Network Recognition for Athletes' Pneumonia Image Based on Attention Mechanism. [PDF]

Entropy (Basel), 2022
Zhang H, Ma R, Zhao Y, Zhang Q, Sun Q, Ma Y.   +5 more
europepmc   +1 more source

Achieving Robust Compressive Sensing Seismic Acquisition with a Two-Step Sampling Approach. [PDF]

Sensors (Basel), 2023
Titova A, Wakin MB, Tura AC.
europepmc   +1 more source

Curvelets

, 2023
Plonka, Gerlind, Ma, Jianwei, Engquist, B.   +2 more
openaire   +1 more source