Quantization effects on the deflection angles of digital holograms

2004 ◽  
Author(s):  
Andreas G. Georgiou ◽  
Jeremy Sosabowski ◽  
William A. Crossland
Keyword(s):  
Digital Holograms

Image reconstruction from noisy digital holograms

1990 ◽  
Vol 137 (5) ◽  
pp. 351 ◽  
Author(s):  
C.P. Mariadassou ◽  
B. Yegnanarayana
Keyword(s):  
Image Reconstruction ◽  
Digital Holograms

scholarly journals Neuroblastoma cells classification through learning approaches by direct analysis of digital holograms

2021 ◽  
pp. 1-1
Author(s):  
Mattia Dellipriscoli ◽  
Pasquale Memmolo ◽  
Gioele Ciaparrone ◽  
Vittorio Bianco ◽  
Francesco Merola ◽  
...  
Keyword(s):  
Neuroblastoma Cells ◽  
Direct Analysis ◽  
Learning Approaches ◽  
Digital Holograms

scholarly journals Low memory distributed reconstruction of large digital holograms

2008 ◽  
Vol 16 (3) ◽  
pp. 1990 ◽  
Author(s):  
Andrew J. Page ◽  
Lukas Ahrenberg ◽  
Thomas J. Naughton
Keyword(s):  
Digital Holograms

scholarly journals Depth-independent segmentation of macroscopic three-dimensional objects encoded in single perspectives of digital holograms

2007 ◽  
Vol 32 (10) ◽  
pp. 1229 ◽  
Author(s):  
Conor P. McElhinney ◽  
John B. McDonald ◽  
Albertina Castro ◽  
Yann Frauel ◽  
Bahram Javidi ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Three Dimensional Objects ◽  
Digital Holograms

Speckle reduction from digital Holograms by simulating temporal incoherence

2007 ◽  
Author(s):  
B. M. Hennelly ◽  
D. P. Kelly ◽  
J. Maycock ◽  
T. J. Naughton ◽  
J. B. McDonald
Keyword(s):  
Speckle Reduction ◽  
Digital Holograms

Phase-shifting digital holography with an unknown reference beam

2021 ◽  
Author(s):  
Roghayeh Yazdani ◽  
Hamidreza Fallah
Keyword(s):  
Digital Holography ◽  
Phase Retrieval ◽  
Reference Beam ◽  
Phase Shifting ◽  
Retrieval Algorithm ◽  
Reference Field ◽  
Digital Holograms ◽  
Noisy Conditions ◽  
Phase Retrieval Algorithm

In digital holography, errors of the reference field degrade the quality of the reconstructed object field. In this paper, we propose an effective method in phase-shifting digital holography in which the reference field does not need to be known and perfect. The unknown complex amplitudes of both reference and object fields are derived simultaneously. The method employs only five digital holograms and a single execution of a phase retrieval algorithm. So, the required measurements and algorithm executions in this method are fewer than those in other methods; it suggests a simpler and faster method. The effectiveness of the suggested method is indicated by simulation, under noise-free and noisy conditions. Moreover, the capability of the method to extract full information about the phase singularities in both fields is demonstrated.

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