Results 41 to 50 of about 48,878 (307)

Hand gesture recognition using sparse feature based on electromyography signal

open access: yesDianzi Jishu Yingyong, 2020
Gesture recognition technology based on sEMG is an important research direction in the field of human-computer natural interaction. The key to the realization of gesture recognition technology is how to extract the effective features of sEMG signal. This
Li Zhaochun, Gu Quan, Wang Yucheng
doaj   +1 more source

Parametric Sparse Representation and Its Applications to Radar Sensing

open access: yesLeida xuebao, 2016
Sparse signal processing has been utilized to the area of radar sensing. Due to the presence of unknown factors such as the motion of the targets of interest and the error of the radar trajectory, a predesigned dictionary cannot provide the optimally ...
Li Gang, Xia Xiang-Gen
doaj   +1 more source

Identification of Matrices Having a Sparse Representation

open access: yes, 2008
We consider the problem of recovering a matrix from its action on a known vector in the setting where the matrix can be represented efficiently in a known matrix dictionary.
Pfander, Goetz E.   +6 more
core   +1 more source

New Directions In Sparse Sampling and Estimation For Underdetermined Systems [PDF]

open access: yes, 2013
A central objective in signal processing is to infer meaningful information from a set of measurements or data. While most signal models have an overdetermined structure (the number of unknowns less than the number of equations), traditionally very few ...
Piya Pal, Pal, Piya
core   +1 more source

Investigation of the Effect of Diverse Dictionaries and Sparse Decomposition Techniques for Power Quality Disturbances

open access: yesEnergies
The quality of power signals is strongly influenced by nonlinear loads in Electrical Power systems. Representation of electrical signals using different Sparse techniques is an interesting area of research as it moderates the volume of data to be stored.
Vivek Anjali   +1 more
doaj   +1 more source

Learning Incoherent Dictionaries for Sparse Approximation Using Iterative Projections and Rotations [PDF]

open access: yes, 2013
Copyright 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating ...
Barchiesi, D   +3 more
core   +1 more source

The cosparse analysis model and algorithms

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

The Role of Hematopoietic Cell Transplantation in Ataxia‐Telangiectasia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Ataxia‐telangiectasia (A‐T) is a DNA repair disorder characterized by neurodegeneration, immunodeficiency, and cancer predisposition. Hematopoietic cell transplantation (HCT) is an established therapy in related disorders such as Fanconi anemia (FA) and Nijmegen breakage syndrome (NBS), but its role in A‐T is unclear.
Laila Alkhouli   +3 more
wiley   +1 more source

Joint Sparse Representation-based Single Image Super-Resolution for Remote Sensing Applications

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Sparse representation-based single image super-resolution (SISR) methods use a coupled overcomplete dictionary trained from high-resolution images/image patches.
Bhabesh Deka   +3 more
doaj   +1 more source

Iterative thresholding for sparse approximations

open access: yes, 2008
Sparse signal expansions represent or approximate a signal using a small number of elements from a large collection of elementary waveforms. Finding the optimal sparse expansion is known to be NP hard in general and non-optimal strategies such as ...
Blumensath, T.   +3 more
core   +1 more source

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