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Related Experiment Video

Updated: May 24, 2026

Digital Inline Holographic Microscopy (DIHM) of Weakly-scattering Subjects
10:16

Digital Inline Holographic Microscopy (DIHM) of Weakly-scattering Subjects

Published on: February 8, 2014

An automatic method for assembling a large synthetic aperture digital hologram.

A Pelagotti1, M Paturzo, M Locatelli

  • 1CNR Istituto Nazionale di Ottica-Largo E. Fermi, 6 50125 Firenze, Italy.

Optics Express
|March 16, 2012
PubMed
Summary

Researchers developed an automatic technique to stitch multiple holograms, enhancing digital holography resolution. This method overcomes detector limitations for clearer imaging of large objects in visible and infrared light.

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Area of Science:

  • Optics and Photonics
  • Digital Imaging

Background:

  • Digital holography often suffers from low spatial resolution due to detector size limitations.
  • Current detectors like CCD sensors and microbolometers restrict the numerical aperture (NA) compared to traditional holographic plates.

Purpose of the Study:

  • To develop an automatic technique for increasing the numerical aperture in digital holography.
  • To improve spatial resolution and achieve a wider parallax angle for imaging large objects.

Main Methods:

  • An automatic method was developed to record multiple holograms.
  • These holograms are then stitched together to create a synthetic, larger numerical aperture.
  • The technique is applicable to both visible and infrared (IR) digital holography.

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Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display
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Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display

Published on: January 14, 2020

Related Experiment Videos

Last Updated: May 24, 2026

Digital Inline Holographic Microscopy (DIHM) of Weakly-scattering Subjects
10:16

Digital Inline Holographic Microscopy (DIHM) of Weakly-scattering Subjects

Published on: February 8, 2014

Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization
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Compact Lens-less Digital Holographic Microscope for MEMS Inspection and Characterization

Published on: July 5, 2016

Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display
09:04

Recording Ultra-Realistic Full-Color Analog Holograms for Use in a Moving Hologram Display

Published on: January 14, 2020

Main Results:

  • The stitching technique successfully increases the effective numerical aperture of the digital hologram.
  • Enhanced resolution allows for the visualization of finer details in recorded objects.
  • A wider parallax angle is achieved, improving the 3D perception of large-scale objects.

Conclusions:

  • The developed automatic hologram stitching technique effectively overcomes the limitations of current digital holographic systems.
  • This method significantly enhances spatial resolution and imaging capabilities for both visible and IR digital holography.
  • The technique enables the recording and display of large-size objects with improved detail and parallax.