Image Quality Improvement of Digital Holography by Multiple Wavelengths or Multiple Holograms

Nomura, Takanori

doi:10.5772/14282

Cited by 1 publication

(1 citation statement)

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“…The common structure of applied quality criteria for holographic images is shown at the following block diagram (Figure 1). For planar images as well as for 3D images are widely used such criteria as detailing degree, speckle size [2], optical density, brightness inhomogeneity, chromaticity, pattern cell configuration, etc. For evaluation the quality of actual holograms usually used such criteria as diffraction efficiency, selectivity (angular, spectral), scale factor (angular (Mα), longitudinal (Ml), Transverse (Mh)), depth of field, resolution and aberrations [3] and hologram depth [4].…”

Section: Criteria Overviewmentioning

confidence: 99%

Estimation of quality of 3D holographic images by means of stereogrammetry

Maryasov

Maryasova

Maryasov

2011

Holography: Advances and Modern Trends II

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The method for estimation quality and adequacy of reconstructed holographic 3D images by means of stereogrammetry and digital image processing is proposed. The quality as a subjective parameter is considered and analyzed with the most often used criteria, which can be applied to reconstructed 3D scene or object. The method of stereogrammetry with its application for holographic images is considered and expressions for definition of method's accuracy are derived for ideal and non-ideal stereopairs. The measuring accuracy of surface of holographic image estimated to be less then 25 µm which is far below of the human eye resolution, and hence stereogrammetry method can be employed for quality estimation in 3D holographic simulators.

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Section: Criteria Overviewmentioning

confidence: 99%