Results 61 to 70 of about 2,557,405 (292)
Digital Polarization Holography: Challenges and Opportunities
Engineering Proceedings, 2023 Polarization has a profound impact on image quality and visual perception. For instance, polarization provides a new perspective on seeing an object which is otherwise obscured, low contrast or not measurable by conventional imaging methods.
Rakesh Kumar Singh
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Exploring shot noise and Laser Doppler imagery with heterodyne holography
, 2012 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 +1 more source
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
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Bimodal Incoherent Digital Holography for Both Three-Dimensional Imaging and Quasi-Infinite-Depth-of-Field Imaging. [PDF]
Sci Rep, 2019 Although three-dimensional (3D) imaging and extended depth-of-field (DOF) imaging are completely opposite techniques, both provide much more information about 3D scenes and objects than does traditional two-dimensional imaging.
Nobukawa T +4 more
europepmc +2 more sources
Superpixel-based spatial amplitude and phase modulation using a digital micromirror device [PDF]
, 2014 We present a superpixel method for full spatial phase and amplitude control of a light beam using a digital micromirror device (DMD) combined with a spatial filter.
Bertolotti, Jacopo +2 more
core +3 more sources
Results in Optics, 2021 At present, there are few researches about telescopic digital holography (TDH) on the combination of digital holography and telescope technology. Because this technology generally cause low phase shift accuracy and large image reconstruction distance ...
YuCheng Li +4 more
doaj
PhotonicsIncoherent digital holography is a promising solution for acquiring three-dimensional information in the form of interference without a laser. Self-interference is the principal phenomenon of incoherent holography which splits the incident light wave ...
Youngrok Kim +3 more
doaj +1 more source
Real-time pollen monitoring using digital holography
Atmospheric Measurement Techniques, 2019 . We present the first validation of the Swisens Poleno, currently the only operational automatic pollen monitoring system based on digital holography.
Eric Sauvageat +9 more
semanticscholar +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
Advanced Science, EarlyView.This study introduces a lens‐free digital holography (LDH) method for detecting metal impurities in lead‐acid battery electrolytes. Using a green LED and CMOS camera, the technique captures holograms and analyzes reconstruction distances and gray‐scale differences.
Liang Xue +5 more
wiley +1 more source