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Updated: Apr 17, 2026

Digital Inline Holographic Microscopy DIHM of Weakly-scattering Subjects

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Published on: February 8, 2014

Modified split-Lohmann holography: a shift- and ringing-free approach.

Tomoyoshi Shimobaba, Kai Kumano, Masato Shotoku

|April 15, 2026

Summary

This summary is machine-generated.

This study introduces a modified Split-Lohmann (SL) holography technique to fix depth-dependent shifts and ringing artifacts. The new method enhances 3D scene reconstruction fidelity without increasing computational load.

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Area of Science:

Computational imaging
Digital holography
Optical engineering

Background:

Split-Lohmann (SL) holography offers high-speed computation independent of layer count.
Conventional SL holography suffers from depth-dependent shifts and ringing artifacts without random phase modulation.

Purpose of the Study:

To develop a modified SL holography method that simultaneously corrects depth-dependent shifts and ringing artifacts.
To enhance the fidelity of 3D scene reconstruction in SL holography.

Main Methods:

Introduced a constant-value aperture into the SL virtual optical system to generate a reference complex amplitude.
Encoded shift and ringing information within the reference complex amplitude.
Applied regularized complex division between the object-loaded SL hologram and the reference to cancel aberrations.

Main Results:

Successfully mitigated both depth-dependent spatial shifts and persistent ringing artifacts.
Achieved enhanced fidelity in reconstructed 3D scenes.
Maintained computational complexity comparable to shift-free SL holography.

Conclusions:

The proposed modified SL holography effectively corrects aberrations while preserving computational efficiency.
This advancement significantly improves the quality of 3D reconstructions using SL holography.