Results 21 to 30 of about 572,458 (282)

DiCoDiLe: Distributed Convolutional Dictionary Learning [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2022
Convolutional dictionary learning (CDL) estimates shift invariant basis adapted to represent signals or images. CDL has proven useful for image denoising or inpainting, as well as for pattern discovery on multivariate signals. Contrarily to standard patch-based dictionary learning, patterns estimated by CDL can be positioned anywhere in signals or ...
Moreau, Thomas, Gramfort, Alexandre
openaire   +3 more sources

Denoising of Seismic Data Based on Block Dictionary Learning Theory

open access: yesCT Lilun yu yingyong yanjiu, 2022
With the increasingly complex observation environment of oil and gas exploration, the seismic data collected are often mixed with various noise signals, resulting in the effective weak signal caused by the exploration target is covered, which seriously ...
Junjie ZHOU   +3 more
doaj   +1 more source

Improved Cross-Label Suppression Dictionary Learning for Face Recognition

open access: yesIEEE Access, 2018
Cross-label suppression dictionary learning is an effective approach to preserve the label property for signal representation in face recognition. This paper presents a proposed improved dictionary learning algorithm, considering the tradeoffs between ...
Tian Zhou   +4 more
doaj   +1 more source

Graph-Regularized Discriminative Analysis-Synthesis Dictionary Pair Learning for Image Classification

open access: yesIEEE Access, 2019
Analysis-synthesis dictionary pair learning, which can provide a comprehensive view of data representation, has been applied in various computer vision tasks.
Heyou Chang   +4 more
doaj   +1 more source

Locality Preserving and Label-Aware Constraint-Based Hybrid Dictionary Learning for Image Classification

open access: yesApplied Sciences, 2021
Dictionary learning has been an important role in the success of data representation. As a complete view of data representation, hybrid dictionary learning (HDL) is still in its infant stage.
Jianqiang Song   +5 more
doaj   +1 more source

Kernel dictionary learning [PDF]

open access: yes2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2012
In this paper, we present dictionary learning methods for sparse and redundant signal representations in high dimensional feature space. Using the kernel method, we describe how the well-known dictionary learning approaches such as the method of optimal directions and K-SVD can be made nonlinear.
Hien Van Nguyen   +3 more
openaire   +1 more source

Multi-task hybrid dictionary learning for vehicle classification in sensor networks

open access: yesInternational Journal of Distributed Sensor Networks, 2018
In this article, we propose a novel multi-task hybrid dictionary learning approach for moving vehicle classification tasks using multi-sensor networks to improve the classification accuracy in complex scenes with low time complexity, which considers both
Rui Wang   +3 more
doaj   +1 more source

Block Orthonormal Overcomplete Dictionary Learning [PDF]

open access: yes, 2013
In the field of sparse representations, the overcomplete dictionary learning problem is of crucial importance and has a growing application pool where it is used.
Dumitrescu, Bogdan, Rusu, Cristian
core   +1 more source

A New Dictionary Construction Based Multimodal Medical Image Fusion Framework

open access: yesEntropy, 2019
Training a good dictionary is the key to a successful image fusion method of sparse representation based models. In this paper, we propose a novel dictionary learning scheme for medical image fusion.
Fuqiang Zhou   +4 more
doaj   +1 more source

Underdetermined Blind Source Separation Algorithm for Speech Signal Based on DSKSVD Dictionary Learning [PDF]

open access: yesJisuanji gongcheng, 2018
In order to overcome the shortcoming that the traditional learning algorithm training has limited dictionary size and large amount of computation,the algorithm of underdetermined blind source separation for speech signal based on the dictionary learning ...
LI Hu,XU Yan
doaj   +1 more source

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