Results 91 to 100 of about 11,614 (198)
High spatial resolution and high contrast optical speckle imaging with FASTCAM at the ORM
, 2010 In this paper, we present an original observational approach, which combines, for the first time, traditional speckle imaging with image post-processing to obtain in the optical domain diffraction-limited images with high contrast (1e-5) within 0.5 to 2 ...
Bejar-Sanchez, V. +12 more
core +3 more sources
Journal of Applied Entomology, Volume 150, Issue 2, Page 243-253, March 2026.ABSTRACT Previous studies on Cydia pomonella eggs have demonstrated reliable egg adhesion to the leaves and fruits of various apple cultivars. In contrast to biological substrates, this study is focused on standardised synthetic substrates to measure egg pull‐off forces and determine adhesive strength, allowing for an unbiased comparison with other ...
Loris Al Bitar +3 more
wiley +1 more source
PISCO2: the new speckle camera of the Nice 76-cm refractor
, 2014 We present the new speckle camera PISCO2 made in 2010-2012, for the 76-cm refractor of C\^ote d'Azur Observatory. It is a focal instrument dedicated to the observation of visual binary stars using high angular resolution speckle interferometry techniques
Bonneau, Daniel +5 more
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Journal of Imaging, 2019 This paper presents first laboratory results of a combined approach carried out by the use of three different portable non-invasive electromagnetic methods: Digital holographic speckle pattern interferometry (DHSPI), stimulated infrared thermography ...
Antonina Chaban +5 more
doaj +1 more source
Preliminary results on two-dimensional interferometry of HL Tau [PDF]
Preliminary two-dimensional speckle interferometry results of HL Tau were found to be qualitatively similar to those found with one-dimensional slit scanning techniques; results consist of a resolved component (approximately 0.7 arcsec in size) and an ...
Harvey, Paul M., Tollestrup, Eric V.
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EPJ Web of Conferences, 2010 The hole-drilling strain gauge technique has become a standard method in measuring residual stresses [1]. Moiré interferometry combining hole-drilling method opens additional opportunity for full-field residual stress measurement using optical ...
Lyu B.I., Aoh J.N.
doaj +1 more source
Characterizations on fracture process zone of plain concrete
Journal of Civil Engineering and Management, 2019 The fracture property of concrete is essential for the safety and durability analysis of concrete structures. Investigating the characteristics of the fracture process zone (FPZ) is of great significance to clarify the nonlinear fracture behaviour of ...
Yuxiang Tang, Hongniao Chen
doaj +1 more source
Beam-modulation methods in quantitative and flow visualization holographic interferometry [PDF]
This report discusses heterodyne holographic interferometry and time-average holography with a frequency shifted reference beam. Both methods will be used for the measurement and visualization of internal transonic flows, where the target facility is a ...
Decker, A.
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Компьютерная оптикаA noise-proof algorithm for post-processing of video files recorded without isolation from vibration in the optical scheme of a digital speckle interferometer with a continuous laser and a diffuse-scattering element placed in front of the object is ...
A.V. Ivchenko, A.I. Zhuzhukin
doaj +1 more source
Information retrieval from holographic interferograms: Fundamentals and problems [PDF]
Holographic interferograms can contain large amounts of information about flow and temperature fields. Their information content can be very high because they can be viewed from many different directions. This multidirectionality, and fringe localization
Vest, Charles M.
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