Results 31 to 40 of about 51,169 (250)
Vibration motions studied by Heterodyne Holography [PDF]
Digital Holography and Three-Dimensional Imaging Kohala Coast,
Hawaii United States, Kohala Coast, Hawaii : United States (2013), 2013 Playing with amplitude, phase and frequency of both reference and signal arms, heterodyne holography is well adapted to vibration analysis.
arxiv +1 more source
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
Signal and Noise scaling factors in digital holography [PDF]
Digital Holography and Three-Dimensional Imaging, Kohala Coast,
Hawaii : \'Etats-Unis (2013), 2013 An experimental study on how reconstructed image signal and noise scale with acquisition and reconstruction parameters is proposed. Monte-carlo simulation is performed to emphasize that the measured noise is shot-noise.
arxiv +1 more source
Off-axis digital holography with multiplexed volume Bragg gratings [PDF]
Applied Optics Vol. 57, Issue 12, pp. 3281-3287 (2018), 2018 We report on an optical imaging design based on common-path off-axis digital holography, using a multiplexed volume Bragg grating. In the reported method, a reference optical wave is made by deflection and spatial filtering through a volume Bragg grating.
arxiv +1 more source
Zooming algorithms for Digital Holography
Journal of Physics: Conference Series, 2010 Digital Holography is an imaging modality made up of two parts: (1) using a digital camera to record the interference pattern between a field scattered from an object and a known reference field so that the complex object wavefield can be obtained and (2) replaying or reconstructing the hologram on a computer by simulating the propagation of the object
Hennelly, Bryan M. +3 more
openaire +4 more sources
Incoherent Digital Holography: A Review
Applied Sciences, 2018 Digital holography (DH) is a promising technique for modern three-dimensional (3D) imaging. Coherent holography records the complex amplitude of a 3D object holographically, giving speckle noise upon reconstruction and presenting a serious drawback ...
Jung-Ping Liu +3 more
doaj +1 more source
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
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
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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Is multiplexed off-axis holography for quantitative phase imaging more spatial bandwidth-efficient than on-axis holography? [PDF]
J. Opt. Soc. Am. A 36, A1-A11 (2019), 2019 Digital holographic microcopy is a thriving imaging modality that attracts considerable research interest due to its ability to not only create excellent label-free contrast, but also supply valuable physical information regarding the density and dimensions of the sample with nanometer-scale axial sensitivity.
arxiv +1 more source