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http://dx.doi.org/10.3807/KJOP.2011.22.1.010

Auto-focus of Optical Scanning Holographic Microscopy Using Partial Region Analysis  

Kim, You-Seok (Department of Optical Engineering, Sejong University)
Kim, Tae-Geun (Department of Optical Engineering, Sejong University)
Publication Information
Korean Journal of Optics and Photonics / v.22, no.1, 2011 , pp. 10-15 More about this Journal
Abstract
In this paper, we propose an auto-focusing algorithm which extracts a depth parameter by analyzing a selected part of a hologram, and we use experimental results to show that the algorithm is practical. First, we record a complex hologram using Optical Scanning Holography. Next we select some part of hologram and extract depth information through Gaussian low pass filtering, synthesizing a real-only hologram, power fringe-adjusted filtering and inverting to a new frequency axis. Finally, we reconstruct the hologram automatically using the extracted depth location.
Keywords
Digital holography; Holography; Optical scanning holography; Auto-focusing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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