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

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 holograp...

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Bibliographic Details
Published inETRI journal Vol. 38; no. 4; pp. 599 - 605
Main Authors Lee, Munseob, Min, Gihyeon, Kim, Nac-Woo, Lee, Byung Tak, Song, Je-Ho
Format Journal Article
LanguageKorean
Published 2016
Subjects
Depth detection
Holography
Phase shifting method
Optical scanning holography
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Summary: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.
Bibliography:KISTI1.1003/JNL.JAKO201671261180363
ISSN:1225-6463
2233-7326