Suppressing seismic random noise based on non-subsampled shearlet transform and improved FFDNet
Traditional denoising methods often lose details or edges, such as Gaussian filtering. Shearlet transform is a multi-scale geometric analysis tool which has the advantages of multi-resolution and multi-directivity.
Hua Fan, Yang Zhang, Wenxu Wang, Tao Li
doaj +1 more source
Optimally Sparse Approximations of 3D Functions by Compactly Supported Shearlet Frames [PDF]
Gitta Kutyniok+2 more
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High-Resolution Reflected Wave Extraction and Imaging Enhancement for Array Acoustic Logging
Array acoustic logging reflected wave imaging is an important technology to detect the geological structure and characteristics around the wellbore, especially in the evaluation of fracture-vuggy carbonate rocks and unconventional heterogeneous reservoir.
YUE Wenzheng+3 more
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SAR image despeckling: based on non-local means with non-subsample Shearlet and directional windows [PDF]
Xiaohua Zhang+4 more
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The Construction of Smooth Parseval Frames of Shearlets [PDF]
Kangxian Guo, Demetrio Labate
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GPR data noise attenuation based on the Shearlet transform
When using ground penetrating radar(GPR) to detect the underground target distribution, valid signal in receiving data tend to be susceptible to noise and the interference of air-ground waves, which will affect the accuracy of target recognition and ...
Zheng Jing+4 more
doaj
Multimodal medical image fusion in NSST domain with structural and spectral features enhancement. [PDF]
Khan SU+5 more
europepmc +1 more source
A new convolutional neural network based on combination of circlets and wavelets for macular OCT classification. [PDF]
Arian R+4 more
europepmc +1 more source
Resolution of the Wavefront Set using Continuous Shearlets
Gitta Kutyniok, Demetrio Labate
openalex +2 more sources
The Nonlocal Sparse Reconstruction Algorithm by Similarity Measurement with Shearlet Feature Vector [PDF]
Qidi Wu+3 more
openalex +1 more source