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http://dx.doi.org/10.4218/etrij.16.0115.1047

Fast Holographic Image Reconstruction Using Phase-Shifting Assisted Depth Detection Scheme for Optical Scanning Holography  

Lee, Munseob (Honam Research Center, ETRI)
Min, Gihyeon (Honam Research Center, ETRI)
Kim, Nac-Woo (Honam Research Center, ETRI)
Lee, Byung Tak (Honam Research Center, ETRI)
Song, Je-Ho (Department of IT Applied Systems Engineering, Chonbuk University)
Publication Information
ETRI Journal / v.38, no.4, 2016 , pp. 599-605 More about this Journal
Abstract
For the implementation of a real-time holographic camera, fast and automatic holographic image reconstruction is an essential technology. In this paper, we propose a new automatic depth-detection algorithm for fast holography reconstruction, which is particularly useful for optical scanning holography. The proposed algorithm is based on the inherent phase difference information in the heterodyne signals, and operates without any additional optical or electrical components. An optical scanning holography setup was created using a heterodyne frequency of 4 MHz with a 500-mm distance and 5-mm depth resolution. The reconstruction processing time was measured to be 0.76 s, showing a 62% time reduction compared to a recent study.
Keywords
Holography; Phase shifting method; Depth detection; Optical scanning holography;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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