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The application of multi-frequency fringe projection profilometry on the measurement of biological tissues

Issue title: Frontiers in Biomedical Engineering and Biotechnology – Proceedings of the 4th International Conference on Biomedical Engineering and Biotechnology, 18–21 August 2015, Shanghai, China

Guest editors: Feng Liu, Dong-Hoon Lee, Ricardo Lagoa and Sandeep Kumar

Article type: Research Article

Authors: Jiang, Chaoa | Jia, Shuhaia; * | Xu, Yonga | Bao, Qingchena | Dong, Juna | Lian, Qina; b

Affiliations: [a] School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China | [b] Shaanxi Hengtong Intelligent Machine Co., Ltd, Xi’an 710049, China

Correspondence: [*] Address for correspondence: Shuhai Jia, School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China. Tel.: 13152068353; Fax: +86-029-82660487; E-mail: shjia@mail.xjtu.edu.cn.

Keywords: Biomedicine measurements, fringe projection, phase shifting method, peak searching algorithm

DOI: 10.3233/BME-151328

Journal: Bio-Medical Materials and Engineering, vol. 26, no. s1, pp. S395-S403, 2015

Published: 2015
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A volume of research has been performed on the optical surface profilometry in the field of biomedicine and the optical system with the phase-measuring method becomes the main emphasis of the research. In this research, a brand new fringe projection profilometry with multiple frequencies is described for measuring the biological tissue. A pork liver, as an object, is regarded as a human organ and a DMD projector is used to generate the multi-frequency fringe patterns. The wrapped phase maps are obtained by means of the five-step phase shifting method and calculated via a peak searching algorithm in which the process of measuring the point on the surface of the object is independent so that the step of unwrapping the phase can be avoided. The final results given are acceptable which confirm this method and suggest its enormous potential for the biomedical measurements.

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