Results 21 to 30 of about 25,876 (202)
Digital Holography at Shot Noise Level [PDF]
, 2010 By a proper arrangement of a digital holography setup, that combines off-axis geometry with phase-shifting recording conditions, it is possible to reach the theoretical shot noise limit, in real-time experiments.We studied this limit, and we show that it
Atlan, Michael +3 more
core +7 more sources
Exploring shot noise and Laser Doppler imagery with heterodyne holography [PDF]
, 2010 Heterodyne Holography is a variant of Digital Holography, where the optical frequencies of signal and reference arms can be freely adjusted by acousto-optic modulators.
Atlan, Michael +3 more
core +3 more sources
Multi-Object Deep-Field Digital Holographic Imaging Based on Inverse Cross-Correlation
Applied Sciences, 2023 To address the complexity of small or unique reconstruction distances in digital holography, we propose an inverse cross-correlation-based algorithm for the digital holographic imaging of multiplanar objects with a large depth of field. In this method, a
Jieming Zhao +5 more
doaj +1 more source
Grid computing for the numerical reconstruction of digital holograms [PDF]
, 2005 Digital holography has the potential to greatly extend holography's applications and move it from the lab into the field: a single CCD or other solid-state sensor can capture any number of holograms while numerical reconstruction within a computer ...
Fryer, PC, Hobson, PR, Nebrensky, JJ
core +1 more source
Feed particle size evaluation: conventional approach versus digital holography based image analysis
Italian Journal of Animal Science, 2010 The aim of this study was to evaluate the application of image analysis approach based on digital holography in defining particle size in comparison with the sieve shaker method (sieving method) as reference method.
Vittorio Dell’Orto +7 more
doaj +1 more source
(DH) Noise and Signal scaling factors in Digital Holography in week illumination: relationship with Shot Noise [PDF]
, 2012 We have performed off axis heterodyne holography with very weak illumination by recording holograms of the object with and without object illumination in the same acquisition run.
Gross, Michel +2 more
core +5 more sources
Light People: Professor Liangcai Cao
Light: Science & Applications, 2023 Editorial Holography utilizes the principles of wave interference and diffraction to record and reconstruct images, which can highly restore the three-dimensional features of objects and provide an immersive visual experience.
Tingting Sun
doaj +1 more source
Holography and its applications for industry 4.0: An overview
Internet of Things and Cyber-Physical Systems, 2022 Industry 4.0 is a new stage in the organisation and control of the industrial value chain, interchangeably with the fourth industrial revolution. It has a broad vision with well-defined frameworks and reference designs, focusing on bridging physical ...
Abid Haleem +4 more
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
Photonics, 2022 An important imaging technique in biomedicine, the conventional optical microscopy relies on relatively complicated and bulky lens and alignment mechanics.
Duofang Chen +4 more
doaj +1 more source