Results 21 to 30 of about 1,871,059 (300)

Hyperspectral Anomaly Detection via Sparse Representation and Collaborative Representation

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Sparse representation (SR)-based approaches and collaborative representation (CR)-based methods are proved to be effective to detect the anomalies in a hyperspectral image (HSI).
Sheng Lin   +5 more
doaj   +1 more source

Local Connectivity Enhanced Sparse Representation

open access: yesIEEE Access, 2020
During the past two decades, the subspace clustering problem has attracted much attention. Since the data set in real-world problems usually contains a lot of categories, it seems that the large subspace number (LSN) subspace clustering has great ...
Kewei Tang   +6 more
doaj   +1 more source

Subspace-Sparse Representation

open access: yesCoRR, 2015
15 pages, 3 figures, previous version published in ICML ...
Chong You, René Vidal
openaire   +3 more sources

Sparse representation of astronomical images [PDF]

open access: yesJournal of the Optical Society of America A, 2013
Sparse representation of astronomical images is discussed. It is shown that a significant gain in sparsity is achieved when particular mixed dictionaries are used for approximating these types of images with greedy selection strategies. Experiments are conducted to confirm: i)Effectiveness at producing sparse representations.
Laura Rebollo-Neira, James Bowley
openaire   +4 more sources

Explicit Object Representation by Sparse Neural Codes [PDF]

open access: yes, 2008
Neurons have been identified in the human medial temporal lobe (MTL) that display a strong selectivity for only a few stimuli (such as familiar individuals or landmark buildings) out of perhaps 100 presented to the test subject.
Waydo, Stephen J.
core   +1 more source

Spiralet Sparse Representation

open access: yesCoRR, 2014
10 pages, Working Paper Number: WP-RFM-14 ...
Reza Farrahi Moghaddam, Mohamed Cheriet
openaire   +2 more sources

Sparse representations in audio & music: from coding to source separation [PDF]

open access: yes, 2010
—Sparse representations have proved a powerful toolin the analysis and processing of audio signals and already lieat the heart of popular coding standards such as MP3 andDolby AAC.
Davies, ME   +15 more
core   +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

Bayesian Orthogonal Component Analysis for Sparse Representation [PDF]

open access: yes, 2010
This paper addresses the problem of identifying a lower dimensional space where observed data can be sparsely represented. This undercomplete dictionary learning task can be formulated as a blind separation problem of sparse sources linearly mixed with ...
Nicolas Dobigeon   +3 more
core   +1 more source

Sparse representation of salient regions for no-reference image quality assessment

open access: yesInternational Journal of Advanced Robotic Systems, 2016
This paper introduces an efficient feature learning framework via sparse coding for no-reference image quality assessment. The important part of the proposed framework is based on sparse feature extraction from a sparse representation matrix, which is ...
Tianpeng Feng   +5 more
doaj   +1 more source

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