Results 51 to 60 of about 1,068,113 (278)
Grinding surface roughness measurement based on the co-occurrence matrix of speckle pattern texture [PDF]
, 2006 Surface speckle pattern intensity distribution resulting from laser light scattering from a rough surface contains various information about the surface geometrical and physical properties.A surface roughness measurement technique based on the texture ...
Gledhill, Duke +4 more
core +1 more source
Denoising of Wrapped Phase in Digital Speckle Shearography Based on Convolutional Neural Network
Applied SciencesSpeckle-shearing technology is widely used in defect detection due to its high precision and non-contact characteristics. However, the wrapped-phase recording defect information is often accompanied by a lot of speckle noise, which affects the evaluation
Hao Zhang, Dawei Huang, Kaifu Wang
doaj +1 more source
Real-Time Ultrasound Image Despeckling Using Mixed-Attention Mechanism Based Residual UNet
IEEE Access, 2020 Ultrasound imaging has been widely used for clinical diagnosis. However, the inherent speckle noise will degrade the quality of ultrasound images. Existing despeckling methods cannot deliver sufficient speckle reduction and preserve image details well at
Yancheng Lan, Xuming Zhang
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Spectral speckle filter for SAR imagery [PDF]
, 2012 Despite of a lot of efforts to develop a good de-speckling method for radar/SAR imagery (see e.g. [1, 2]) since 80’s, this topic is still actual nowadays.
Palubinskas, Gintautas +1 more
core +1 more source
Suppression of Speckle Noise in Digital Holography With Spatial and Temporal Domain Depolarization
IEEE Access, 2020 Speckle noise in digital holography has a great influence on image quality, and one of the reasons for the formation of speckle noise is that the degree of coherence for the reference light and the object light is too high and unnecessary noise is ...
Tongyao Du +4 more
doaj +1 more source
Material characterization by laser speckle photometry
, 2022 Paper 841315The damage and stress conditions of large industrial components have to be tested continuously. Especially welding processes in the field of coal production demand a nondestructive monitoring of internal stresses under an external load.
Cikalova, U., Schreiber, J., Bendjus, B.
core +1 more source
FEBS Open Bio, EarlyView.Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty +13 more
wiley +1 more source
Peripheral Neutrophil Activation and Extracellular Trap Formation in Amyotrophic Lateral Sclerosis
Annals of Clinical and Translational Neurology, EarlyView.Markers of neutrophil activation are increased in plasma during ALS, and markers of NET formation associate with ALS survival. ABSTRACT Objectives Peripheral neutrophil levels in amyotrophic lateral sclerosis (ALS) inversely correlate with survival, suggesting a role for neutrophils in disease progression.
Lillia A. Baird +9 more
wiley +1 more source
Speckle Reduction in Digital Holography by Fast Logistic Adaptive Non-Local Means Filtering
PhotonicsDigital holography is a promising imaging technology. However, there is speckle noise in the reconstructed image of a digital hologram. Speckle degrades the quality of the reconstructed image.
Yiping Fu, Junmin Leng, Zhenqi Xu
doaj +1 more source
Physical pupil manipulation for speckle reduction in digital holographic microscopy
Heliyon, 2021 The reduction of speckle noise by physically changing the pupil of the imaging system, as first envisioned in optical holography, is experimentally applied to a digital holographic microscope (DHM).
Carlos Buitrago-Duque +1 more
doaj +1 more source