Noise reduction of digital holography using speckle correlation properties in longitudinal direction

Hideki Funamizu; Jun Uozumi; Yoshihisa Aizu

doi:10.1117/12.2525457

21 June 2019 Noise reduction of digital holography using speckle correlation properties in longitudinal direction

Hideki Funamizu, Jun Uozumi, Yoshihisa Aizu

Proceedings Volume 11056, Optical Measurement Systems for Industrial Inspection XI; 110563G (2019) https://doi.org/10.1117/12.2525457
Event: SPIE Optical Metrology, 2019, Munich, Germany

Abstract

In this study, we demonstrate reduction of speckle noises of digital holography using speckle correlation properties in the longitudinal direction. In this method, it is assumed that digital holograms of diffuse objects are recorded on an image sensor. Using multiple holograms recorded by moving the image sensor to the longitudinal direction, the speckle noise of a reconstructed image is reduced and therefore the image quality is improved by the proposed method.

Citation Download Citation

Hideki Funamizu, Jun Uozumi, and Yoshihisa Aizu "Noise reduction of digital holography using speckle correlation properties in longitudinal direction", Proc. SPIE 11056, Optical Measurement Systems for Industrial Inspection XI, 110563G (21 June 2019); https://doi.org/10.1117/12.2525457

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