Results 11 to 20 of about 24,551,019 (389)

EXAMINATION OF SPECTRAL TRANSFORMATIONS ON SPECTRAL MIXTURE ANALYSIS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
While many spectral transformation techniques have been applied on spectral mixture analysis (SMA), few study examined their necessity and applicability.
Y. Deng, C. Wu
doaj   +4 more sources

Factor Analysis for Spectral Estimation [PDF]

open access: yes2017 International Conference on Sampling Theory and Applications (SampTA), 2017
Power spectrum estimation is an important tool in many applications, such as the whitening of noise. The popular multitaper method enjoys significant success, but fails for short signals with few samples.
Andén, Joakim, Singer, Amit
core   +4 more sources

Spectral Analysis Implies Spectral Synthesis

open access: yesMathematics
In this paper we show that spectral analysis implies spectral synthesis for arbitrary varieties on locally compact Abelian groups that have no discrete subgroups of an infinite torsion-free rank.
László Székelyhidi
doaj   +3 more sources

Spectral analysis of jet turbulence [PDF]

open access: yesJournal of Fluid Mechanics, 2017
Informed by large-eddy simulation (LES) data and resolvent analysis of the mean flow, we examine the structure of turbulence in jets in the subsonic, transonic and supersonic regimes.
O. Schmidt   +4 more
semanticscholar   +7 more sources

Spectral Analysis of Percolation Hamiltonians [PDF]

open access: yesMathematische Annalen, 2004
We study the family of Hamiltonians which corresponds to the adjacency operators on a percolation graph. We characterise the set of energies which are almost surely eigenvalues with finitely supported eigenfunctions.
Adachi   +22 more
core   +6 more sources

Spectral analysis of ZUC-256

open access: yesIACR Transactions on Symmetric Cryptology, 2020
In this paper we develop a number of generic techniques and algorithms in spectral analysis of large linear approximations for use in cryptanalysis.
Jing Yang   +2 more
doaj   +4 more sources

Spectral analysis for nonstationary audio [PDF]

open access: yesIEEE/ACM Transactions on Audio, Speech, and Language Processing, 2018
A new approach for the analysis of nonstationary signals is proposed, with a focus on audio applications. Following earlier contributions, nonstationarity is modeled via stationarity-breaking operators acting on Gaussian stationary random signals.
Meynard, Adrien, Torrésani, Bruno
core   +5 more sources

Rapid spectral analysis for spectral imaging [PDF]

open access: yesBiomedical Optics Express, 2010
Spectral imaging requires rapid analysis of spectra associated with each pixel. A rapid algorithm has been developed that uses iterative matrix inversions to solve for the absorption spectra of a tissue using a lookup table for photon pathlength based on numerical simulations.
Ravikant Samatham   +2 more
openaire   +2 more sources

Spectral Connectivity Analysis [PDF]

open access: yesJournal of the American Statistical Association, 2010
Spectral kernel methods are techniques for transforming data into a coordinate system that efficiently reveals the geometric structure - in particular, the "connectivity" - of the data. These methods depend on certain tuning parameters. We analyze the dependence of the method on these tuning parameters.
Lee, Ann B., Wasserman, Larry
openaire   +4 more sources

3D hand pose and shape estimation from monocular RGB via efficient 2D cues

open access: yesComputational Visual Media, 2023
Estimating 3D hand shape from a single-view RGB image is important for many applications. However, the diversity of hand shapes and postures, depth ambiguity, and occlusion may result in pose errors and noisy hand meshes.
Fenghao Zhang   +5 more
doaj   +1 more source

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