Noise removal and lesser computational run time of the digital holographic numerical reconstruction procedure are the critical issues for effective and efficient identification of three-dimensional (3D) particle fields. The present study suggests an improved reconstruction procedure based on the superposition principle. The effectiveness of this proposed method is evaluated using both simulated and experimental data of a 3D particle field. Influence of object-particle number density and sample volume depth on the reconstructed particle field is investigated. There is a reduction in computational run time (as high as 50%) and significant increase in reconstruction effectiveness (as high as 7 times increase) due to the proposed method as compared to the literature (Opt. Express 18, 2426, 2010 and Opt. Express 12, 2270, 2004).
© 2012 Optical Society of America
Original Manuscript: August 15, 2012
Revised Manuscript: November 5, 2012
Manuscript Accepted: November 5, 2012
Published: December 7, 2012
Abhishek Nigam and P. K. Panigrahi, "Increase in effectiveness of holographic particle field reconstruction using superposition procedure," Appl. Opt. 52, A377-A387 (2013)