Results 31 to 40 of about 6,454 (268)

$p$-adic Dual Shearlet Frames [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2019
We introduced the continuous and discrete $p$-adic shearlet systems. We restrict ourselves to a brief description of the $p$-adic theory and shearlets in real case.
Mahdieh Fatemidokht   +1 more
doaj   +1 more source

Use of the shearlet energy entropy and of the support vector machine classifier to process weak microseismic and desert seismic signals

open access: yesComptes Rendus. Géoscience, 2020
Low-amplitude signal detection is a key procedure in borehole microseismic and desert seismic exploration. Usually, signals are difficult to detect due to their low amplitude and noise contamination.
Li, Yue   +3 more
doaj   +1 more source

A three-dimensional microseismic downhole noise suppression based on polarization filtering method in Shearlet transform

open access: yesFrontiers in Earth Science, 2023
Microseismic noise suppression is widely used in the exploration of unconventional oil and gas resources. The effective microseismic downhole signals have extremely weak energy and are contaminated by strong interference, making data processing and ...
Li Han, Dongyan Wang, Pengjun Yu
doaj   +1 more source

Adaptive Content-Based Medical Image Retrieval Based On Local Features Extraction In Shearlet Domain [PDF]

open access: yesEAI Endorsed Transactions on Context-aware Systems and Applications, 2019
Image retrieval system is an urgent issue for in medicine. In the past, traditional image retrieval system based solely on the label of images and gave limited results.
Vo Tuyet   +4 more
doaj   +1 more source

EMA‐GAN: A Generative Adversarial Network for Infrared and Visible Image Fusion with Multiscale Attention Network and Expectation Maximization Algorithm

open access: yesAdvanced Intelligent Systems, Volume 5, Issue 11, November 2023., 2023
Expectation‐maximization algorithm generative adversarial network (EMA‐GAN) is proposed to fuse images from different modalities. This is an EM learning framework based on GAN that maximizes the likelihood of fused results and estimates potential variables.
Xiuliang Xi   +5 more
wiley   +1 more source

The Fusion of Multi-Focus Images Based on the Complex Shearlet Features-Motivated Generative Adversarial Network

open access: yesJournal of Advanced Transportation, 2021
The traditional methods for multi-focus image fusion, such as the typical multi-scale geometric analysis theory-based methods, are usually restricted by sparse representation ability and the transferring efficiency of the fusion rules for the captured ...
Lei Wang   +5 more
doaj   +1 more source

Deep learning: Applications, architectures, models, tools, and frameworks: A comprehensive survey

open access: yesCAAI Transactions on Intelligence Technology, Volume 8, Issue 3, Page 581-606, September 2023., 2023
Abstract Deep Learning (DL) is a subfield of machine learning that significantly impacts extracting new knowledge. By using DL, the extraction of advanced data representations and knowledge can be made possible. Highly effective DL techniques help to find more hidden knowledge.
Mehdi Gheisari   +10 more
wiley   +1 more source

Abstract Shearlet Transform [PDF]

open access: yesBulletin of the Belgian Mathematical Society - Simon Stevin, 2015
In this paper, the shearlet theory is extended from Euclidean spaces to locally compact groups. More precisely, the abstract shearlet group is defined as a 3-fold semidirect product and the abstract shearlet transform is constructed by means of a quasiregular representation of the semidirect product group.
Kamyabi-Gol, R.A., Atayi, V.
openaire   +3 more sources

Road Detection Based on Shearlet for GF-3 Synthetic Aperture Radar Images

open access: yesIEEE Access, 2020
GF-3 satellite is China's first C-band multi-polarized synthetic aperture radar (SAR) satellite with the 1-meter resolution, which has been widely used in various fields. Road detection for GF-3 SAR images is an important part of the application of GF-3,
Zengguo Sun   +4 more
doaj   +1 more source

River boundary detection and autonomous cruise for unmanned surface vehicles

open access: yesIET Image Processing, Volume 17, Issue 11, Page 3196-3215, 18 September 2023., 2023
The detection of river boundaries is important for judging the drivable area of USVs, and it can also be utilized to ensure driving safety by limiting the effective drivable areas of the USVs in the river areas. This work proposes a real‐time detection method for river boundaries based on a LiDAR sensor to detect the boundaries of incompletely ...
Kai Zhang   +5 more
wiley   +1 more source

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