13 June 2005 2D parallel optical coherence tomography and multiple-layer information extraction
Author Affiliations +
During the past decade, optical coherence tomography (OCT) has been vigorously developed into a powerful tool for biomedical diagnosis applications. Because this technology has the nature of extracting the internal features of an object, its applications can be extended to document security, biometrics identification, and industrial inspection. In addition, its high imaging resolution makes OCT an ideal tool for massive storage/retrieval of 3D data. In this paper, we propose the 2D parallel OCT system and its application for multiple-layer information retrieval. We will study the issues that exist exclusively in this type of application, such as interlayer phase/intensity modulation and the parasitic fringe patterns resulting from the surfaces of the information layer. The basic procedure of the proposed OCT system includes three steps: 1) extraction of cross-section raw images at each layer of an object; 2) removal of the interfering fringes by algorithm derived from multiple phase-shifted images; 3) elimination of interlayer modulations and parasitic patterns. Other issues that may degrade the retrieved images are also discussed. The simulation results and experimental tomography obtained from different testing samples are presented and discussed.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shoude Chang, Shoude Chang, Xianyang Cai, Xianyang Cai, Erroll Murdock, Erroll Murdock, Costel Flueraru, Costel Flueraru, } "2D parallel optical coherence tomography and multiple-layer information extraction", Proc. SPIE 5856, Optical Measurement Systems for Industrial Inspection IV, (13 June 2005); doi: 10.1117/12.611825; https://doi.org/10.1117/12.611825


Progress in phase unwrapping
Proceedings of SPIE (September 28 1998)
Frequency-domain imaging of thick tissues using a CCD
Proceedings of SPIE (March 31 1992)
Moire and grid methods: a signal-processing approach
Proceedings of SPIE (November 29 1994)

Back to Top