Results 101 to 110 of about 85,035 (307)
, 2014 Purpose: To develop an ultrasound computer-aided diagnosis (CAD) system using speckle features of automated breast ultrasound (ABUS) images. Methods: The ABUS images of 147 pathologically proven breast masses (76 benign and 71 malignant cases) were used.
Moon, Woo Kyung;Lo, Chung-Ming;Chang, Jung Min;Huang, Chiun-Sheng;Chen, Jeon-Hor;Chang, Ruey-Feng +1 more
core +1 more source
Influence of Optical Fiber Parameters on the Speckle Pattern and Spectral Observation in Astronomy
PhotonicsOptical fibers serve as a bridge to transmit starlight into the spectrograph in fiber spectral surveys. Due to the interference between multiple modes supported within the fiber, a granular speckle pattern appears on the end of the fiber and leads to an ...
Anzhi Wang +10 more
doaj +1 more source
Remote Sensing, 2016 Ghost imaging via sparsity constraint (GISC)—which is developing into a new staring imaging lidar—can obtain both the range information and spatial distribution of a remote target with the use of the measurements below the Nyquist limit.
Wenlin Gong +5 more
doaj +1 more source
Effects of speckle/pixel size ratio on temporal and spatial speckle-contrast analysis of dynamic scattering systems: Implications for measurements of blood-flow dynamics [PDF]
, 2013 Laser Speckle Contrast Imaging (LSCI) is an optical technique used to generate blood flow maps with high spatial and temporal resolution. It is well known that in LSCI, the speckle size must exceed the Nyquist criterion to maximize the speckle's pattern ...
NOEMI JASMIN SALAZAR HERMENEGILDO +4 more
core
Speckle interferometry of Hipparcos link stars – III
, 1991 We present here a third list of stars which have been tested by speckle interferometry for use in the Hubble Space Telescope link between the Hipparcos astrometric reference frame and the extragalactic VLBI reference frame.
Jauncey, David L. +7 more
core +1 more source
Automated Hand Flexor Tendon–Thickness Measurement in Systemic Sclerosis
Arthritis Care &Research, EarlyView.Objective Systemic sclerosis (SSc) can affect flexor tendons, contributing to hand function problems and reduced quality of life. Tendon changes are currently assessed with ultrasonography and measured manually, a time‐consuming process prone to interobserver variability.
Mark Greveling +4 more
wiley +1 more source
A New Insight into Biospeckle Activity in Apple Tissues
Sensors, 2019 The monitoring and characterization of agricultural products before harvest or during ripening, storage, and shelf life has recently been increasingly explored in the literature.
Christelle Abou Nader +3 more
doaj +1 more source
Effects of anesthesia on conventional and speckle tracking echocardiographic parameters in a mouse model of pressure overload [PDF]
, 2015 Genetically‑modified mice are widely applied in cardiovascular studies as model organisms. Echocardiography is a key tool for evaluating cardiac and hemodynamic functions in mice.
Wu, Xiaofen +7 more
core +1 more source
Advanced Engineering Materials, EarlyView.Mass density governs the protective behavior of oxide layers on nuclear fuel cladding. Ptychographic X‐ray computed tomography measures zirconium oxide grown on Zircaloy‐4 under reactor and autoclave conditions, revealing nearly identical bulk densities of 5.1 ± 0.80 g cm−3.
Okan Yetik +9 more
wiley +1 more source
Heterodyn-Speckle-Interferometrie zur Schwingungsmessung [PDF]
, 2014 Eine Kombination aus Speckle-Interferometrie und Doppler-Yelocimetrie ermöglicht die Messung von Schwingungen bzw. Geschwindigkeiten an rauhen Oberflächen an mehreren Punkten gleichzeitig.
Jahn, Gerald, Tiziani, Hans J.
core +1 more source