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Proceedings Paper

Scheme of real-time Dammann grating based miniaturized three-dimensional endoscopic imaging system
Author(s): Xiaoxin Wang; Changhe Zhou; Enwen Dai
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Paper Abstract

A real-time miniaturized three-dimensional endoscopic imaging system basing on Dammann grating array illumination is proposed. The system consists of two endoscopic channels that one channel is used to project an array structured light generated by Dammann grating on an object and the other is used to obtain images from the object to measure its surface profile. Using the special designed Dammann grating, it is very simple to generate an array structured light, couple it into the endoscopic channel and project it on an object. The measured images are processed with a standard image processing procedure and the surface profile is extracted by Fourier transform profilometry algorithm. With the development of computer hardware and fast image processing algorithms, the imaging system can acquire real-time data and dynamically process three-dimensional measurements. The system was evaluated in 3-D measurements of several objects with known geometries. The results show high accuracy of the imaging system and its potential applications in clinic and biology research.

Paper Details

Date Published: 15 January 2008
PDF: 9 pages
Proc. SPIE 6832, Holography and Diffractive Optics III, 68320R (15 January 2008); doi: 10.1117/12.755195
Show Author Affiliations
Xiaoxin Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Changhe Zhou, Shanghai Institute of Optics and Fine Mechanics (China)
Enwen Dai, Shanghai Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 6832:
Holography and Diffractive Optics III
Yunlong Sheng; Dahsiung Hsu; Chongxiu Yu, Editor(s)

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