Theoretical studies for volume computerized tomography based on optical interferometry

Nan Sun; Yang Song; Yun-Yun Chen; Zhen-hua Li; An-zhi He

doi:10.1117/12.869802

2 December 2010 Theoretical studies for volume computerized tomography based on optical interferometry

Nan Sun, Yang Song, Yun-Yun Chen, Zhen-hua Li, An-zhi He

Proceedings Volume 7851, Information Optics and Optical Data Storage; 78510Z (2010) https://doi.org/10.1117/12.869802
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

Optical Computerized Tomography is a technique which is famous for real-time, stable and non-contact characteristics in various flow fields' diagnosis. As a result, it shows superiorities in many domains, including the aerospace survey and the measurement of the thermo physical parameters. Due to most of the traditional reconstruction methods of OCT are based on 2-D Radon Transform, they are pseudo three-dimensional in essence. That is to say, the flow field is divided into several parallel slices firstly, and then, the stack of tomogram slices is subsequently used to compute the 3-D representation. However, all the flow fields own real three-dimensional character. Therefore, in this paper, based on the 3-D Radon Transform, the optical interferometry is studied on the model of the volume CT. Meanwhile, the sufficiency condition of accurate reconstruction is studied. Besides, the transform reconstruction algorithm for volume OCT is also presented and verified by simulated experiments. In a word, this study will be better to visualize and display flow fields.

Citation Download Citation

Nan Sun, Yang Song, Yun-Yun Chen, Zhen-hua Li, and An-zhi He "Theoretical studies for volume computerized tomography based on optical interferometry", Proc. SPIE 7851, Information Optics and Optical Data Storage, 78510Z (2 December 2010); https://doi.org/10.1117/12.869802

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