Results 41 to 50 of about 28,756 (270)
SoftwareX, 2021 Fringe projection profilometry and off-axis digital holographic interferometry are two techniques commonly used for non-contact optical surface measurement and movement tracking; however, they can be difficult to implement due to the complex software ...
Parsa Omidi +4 more
doaj +1 more source
Light: Advanced Manufacturing, 2021 In this paper, we propose a dual-wavelength digital holographic interferometry method based on a compact dual vertical-cavity surface-emitting laser (VCSEL) source.
D. Claus +4 more
semanticscholar +1 more source
Harmonically matched grating-based full-field quantitative high-resolution phase microscope for observing dynamics of transparent biological samples [PDF]
, 2007 We have developed a full-field high resolution quantitative phase imaging technique for observing dynamics of transparent biological samples. By using a harmonically matched diffraction grating pair (600 and 1200 lines/mm), we were able to obtain non ...
Heng, Xin +3 more
core +1 more source
Pulsatile microvascular blood flow imaging by short-time Fourier transform analysis of ultrafast laser holographic interferometry [PDF]
, 2015 We report on wide-field imaging of pulsatile microvascular blood flow in the exposed cerebral cortex of a mouse by holographic interferometry. We recorded interferograms of laser light backscattered by the tissue, beating against an off-axis reference ...
Atlan, M. +7 more
core +10 more sources
Short-time Fourier transform laser Doppler holography [PDF]
, 2013 We report a demonstration of laser Doppler holography at a sustained acquisition rate of 250 Hz on a 1 Megapixel complementary metal-oxide-semiconductor (CMOS) sensor array and image display at 10 Hz frame rate.
Atlan, Michael, Samson, Benjamin
core +4 more sources
Applications of Digital Holography: From Microscopy to 3D-Television [PDF]
Journal of the European Optical Society-Rapid Publications, 2012 The paper gives an overview of the applications of digital holography based on the one hand on CCD-recording, computer storage, and numerical reconstruction of the wave fields, and on the other hand on numerical calculation of computer generated ...
Kreis T.
doaj +1 more source
Noise and aliases in off-axis and phase-shifting holography [PDF]
, 2008 We have compared the respective efficiencies of off-axis and phase-shifting holography in terms of noise and aliases removal. The comparison is made by analyzing holograms of an USAF target backlit with laser illumination, recorded with a charge-coupled ...
Ansari +26 more
core +2 more sources
Dynamic digital holographic interferometry with three wavelengths
Optics Express, 2003 A color digital holographic interferometry movie was produced by applying the subtraction digital holography method in a quasi-Fourier off-axis experimental setup. The movie was numerically recorded and replayed from three sets of digital holograms obtained with three different laser lines (476 nm, 532 nm, and 647 nm).
Demoli, Nazif +2 more
openaire +3 more sources
IEEE Access, 2019 The presence of the auto correlation and twin cross correlation noises restrict the available spatial bandwidth of the holographic microscopy to much less than the available bandwidth of the digital sensor.
Behnam Tayebi +2 more
doaj +1 more source
Special Issue on Digital Holographic 3D Imaging: Capture, Display, and Evaluation
ETRI Journal, 2019 Holography has been fascinating people for almost 70 years (since Gabor's invention in 1947) as a true three‐dimensional (3D) imaging technology that can replicate 3D scenes in free space.
Małgorzata Kujawińska +3 more
doaj +1 more source