Adaptive tuning piecewise cubic Hermite interpolation with Wiener filter in wavelet domain for scanning electron microscope images
Sign Up to like & getrecommendations! Published in 2019 at "Microscopy Research and Technique"
DOI: 10.1002/jemt.23181
Abstract: Image processing is introduced to remove or reduce the noise and unwanted signal that deteriorate the quality of an image. Here, a single level two‐dimensional wavelet transform is applied to the image in order to… read more here.
Keywords: wiener filter; wavelet; image; adaptive tuning ... See more keywords
Simultaneous Enhancement and Watermarking of Speech Signals
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Speech Technology"
DOI: 10.1007/s10772-019-09638-1
Abstract: The paper presents an improvement of the watermark extraction in speech signal watermarking. The noise added to the speech signal during transmission affects the efficiency of the watermark extraction. Removing this noise may aid to… read more here.
Keywords: watermark; wiener filter; speech signal; watermark extraction ... See more keywords
Hybrid Lower-Complexity Wiener Filter for Pilot-Based Channel Estimation for C-RS in LTE-A DL System
Sign Up to like & getrecommendations! Published in 2018 at "Mobile Networks and Applications"
DOI: 10.1007/s11036-017-0964-0
Abstract: This paper presents a pilot-based lower complexity channel estimation for Long Term Evolution Advanced (LTE-A) Cell-specific Reference Signals (C-RS). The proposed system is a hybrid one, based on using 2 × 1-D Wiener filter for… read more here.
Keywords: wiener filter; wiener; complexity; channel estimation ... See more keywords
Spurious signals attenuation using SVD-based Wiener filter for near-surface ambient noise surface wave imaging
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Applied Geophysics"
DOI: 10.1016/j.jappgeo.2020.104220
Abstract: Abstract In recent years, high-frequency passive surface wave methods based on seismic interferometry have been applied to estimate near-surface shear wave velocity structure in urban geophysical investigations. One of key steps of using surface-wave methods… read more here.
Keywords: wiener filter; surface wave; spurious signals; surface ... See more keywords
Regional selection-based pre-correction of lens aberrations for light-field displays
Sign Up to like & getrecommendations! Published in 2021 at "Optics Communications"
DOI: 10.1016/j.optcom.2021.127510
Abstract: Abstract The display quality of lens-based integral imaging systems can be negatively affected by lens aberrations. However, different regions of an elemental image (EI) are covered by different fields of a lens, leading to variation… read more here.
Keywords: wiener filter; pre correction; lens aberrations; correction ... See more keywords
Improved ultrasound image quality with pixel-based beamforming using a Wiener-filter and a SNR-dependent coherence factor.
Sign Up to like & getrecommendations! Published in 2021 at "Ultrasonics"
DOI: 10.1016/j.ultras.2021.106594
Abstract: Pixel-based beamforming generates focused data by assuming that the waveforms received on a linear transducer array are composed of spherical pulses. It does not take into account the spatiotemporal spread in the data from the… read more here.
Keywords: wiener filter; coherence factor; based beamforming; pixel based ... See more keywords
Separation of Chaotic Signals by Reservoir Computing
Sign Up to like & getrecommendations! Published in 2020 at "Chaos"
DOI: 10.1063/1.5132766
Abstract: We demonstrate the utility of machine learning in the separation of superimposed chaotic signals using a technique called reservoir computing. We assume no knowledge of the dynamical equations that produce the signals and require only… read more here.
Keywords: wiener filter; chaotic signals; separation; signals reservoir ... See more keywords
Towards an optimal sampling of peculiar velocity surveys for Wiener Filter reconstructions
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx557
Abstract: The Wiener Filter (WF) technique enables the reconstruction of density and velocity fields from observed radial peculiar velocities. This paper aims at identifying the optimal design of peculiar velocity surveys within the WF framework. The… read more here.
Keywords: wiener filter; reconstruction; data points; velocity ... See more keywords
Restoration of I-131 whole body image using a Wiener filter
Sign Up to like & getrecommendations! Published in 2020 at "Nuclear Medicine Communications"
DOI: 10.1097/mnm.0000000000001176
Abstract: Introduction The aim of the study was to restore I-131 whole body image using Wiener filter. Material and methods A set of 50 I-131 whole body images acquired using Symbia E dual head gamma camera… read more here.
Keywords: medicine; 131 whole; wiener filter; image ... See more keywords
Reduced-Dimension Wiener Filter Based on Perpendicular Partition
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2933139
Abstract: This paper addresses the reduced-dimension Wiener filter based on perpendicular partition. Two algorithms, i.e., cyclic per-weight (CPW) and batch CPW (BCPW) are presented, which can efficiently perform reduced-dimension adaptive beamforming. In particular, the CPW is… read more here.
Keywords: filter based; dimension wiener; wiener filter; reduced dimension ... See more keywords
Wiener Filter for Short-Reach Fiber-Optic Links
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2020.3006921
Abstract: Analytic expressions are derived for the Wiener filter (WF), also known as the linear minimum mean square error (LMMSE) estimator, for an intensity-modulation/direct-detection (IM/DD) short-haul fiber-optic communication system. The link is purely dispersive and the… read more here.
Keywords: wiener filter; optic links; short reach; fiber optic ... See more keywords