Results 141 to 150 of about 168,541 (274)

Orbits of Binary Stars: from Visual Measures to Speckle Interferometry

The Astronomical Journal
Knowledge of the orbits of visual binary stars has always been one of the fundamentals of astronomy. Based historically on the visual measures, nowadays the orbits rely more (or exclusively) on the accurate speckle data.
Andrei Tokovinin
doaj   +1 more source

Static and Modal Analysis of Low Porosity Thin Metallic Auxetic Structures Using Speckle Interferometry and Digital Image Correlation

, 2018
L. Francesconi, M. Taylor, K. Bertoldi, A. Baldi   +3 more
semanticscholar   +1 more source

Development of a portable low-cost digital shearography system

, 2008
Includes summary.Includes bibliographical references (leaves 138-142).Shearography is an optical non-destructive testing technique that is well-suited, but not limited, to testing composite materials.
Pitman, Barry
core  

Laser speckle interferometry in stress analysis

, 2000
Laser speckle correlation interferometry enables the measurement of deformation/displacement components and can be used to extract quantitative information on strains/stresses by analysing the fringe patterns.
Zhang, Jingbo
core  

Speckle interferometry of asteroids [PDF]

Icarus, 1985
J.D. Drummond, W.J. Cocke, E.K. Hege, P.A. Strittmatter, J.V. Lambert   +4 more
openaire   +2 more sources

Differential shift estimation in the absence of coherence: performance analysis and benefits of polarimetry

, 2011
The estimation of the local differential shift between synthetic aperture radar (SAR) images has proven to be an effective technique for monitoring glacier surface motion. As images acquired over glaciers by short wavelength SAR systems, such as TerraSAR-
Villano, Michelangelo, Papathanassiou, Konstantinos P.   +1 more
core  

A Robust Skeletonization Method for High-Density Fringe Patterns in Holographic Interferometry Based on Parametric Modeling and Strip Integration. [PDF]

J Imaging
Lychev S, Digilov A.
europepmc   +1 more source

Speckle-based curvature optical metrology. [PDF]

Light Sci Appl
Wang H, Shurvinton R, Pradhan P, Sawhney K.   +3 more
europepmc   +1 more source

Analysis of Speckle Pattern Interferometry Fringe Pattern

, 2007
The contribution deals with fringe analysis obtained by electronic speckle pattern interferometry used to measure deformation of a thin steel plate. The spatial-carrier fringes were introduced to calculate phase function. The Fourier transform method was
Dvořáková, Pavla
core  

Experimental structural characterization of reflection matrices of scattering media. [PDF]

Biomed Opt Express
Woo H, Kim K, Hong JH, Lee YR.
europepmc   +1 more source