Results 41 to 50 of about 35,274,744 (211)

Resolution and Contrast Enhancement for Lensless Digital Holographic Microscopy and Its Application in Biomedicine

open access: yesPhotonics, 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

Special Issue on Digital Holographic 3D Imaging: Capture, Display, and Evaluation

open access: yesETRI 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

Holography and its applications for industry 4.0: An overview

open access: yesInternet 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

Holography : an interpretation from the phase-space point of view [PDF]

open access: yes, 2007
The formation of holograms is interpreted as the consequence of the bilinearity of the ambiguity function. Reconstruction can then be regarded as the manipulation of the ambiguity function.
Situ, Guohai, Sheridan, John T.
core   +1 more source

Applications of Digital Holography: From Microscopy to 3D-Television [PDF]

open access: yesJournal 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

Digital Holographic Printing Methods for 3D Visualization of Cultural Heritage Artifacts

open access: yesDigital Presentation and Preservation of Cultural and Scientific Heritage, 2014
Holography enables capture and reconstruction of the optical field scattered from three-dimensional (3D) objects. The hologram encodes both amplitude and phase of the field under coherent illumination, whereas photography records only the amplitude by ...
Hoonjong Kang   +9 more
doaj   +1 more source

Two-Dimensional Polarization Holographic Gratings in Azopolymer Thin Films: Polarization Properties in the Presence or Absence of Surface Relief

open access: yesPhotonics, 2023
During polarization holographic recording in azopolymer thin films, usually together with the volume anisotropic grating, a surface relief grating (SRG) is also formed.
Georgi Mateev   +8 more
doaj   +1 more source

Attributing scientific and technical progress: the case of holography [PDF]

open access: yes, 2005
Holography, the three-dimensional imaging technology, was portrayed widely as a paradigm of progress during its decade of explosive expansion 1964–73, and during its subsequent consolidation for commercial and artistic uses up to the mid 1980s.
Johnston, Sean F., Johnston, S.F.
core   +1 more source

Digital Polarization Holography: Challenges and Opportunities

open access: yesEngineering 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
doaj   +1 more source

Circle of holography : digital in-line holography for imaging, microscopy and measurement

open access: yes, 2006
Gabor proposed the concept of holography for wavefront reconstruction. The advent of the laser enabled Leith et al. to develop this concept into a technology with off-axis holography. Advances in computational methods and better digital recording medium,
Anand, Asundi, Singh, Vijay Raj
core   +1 more source

Home - About - Disclaimer - Privacy