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Proceedings Paper

Reconstruction algorithm of displacement field by using holographic image
Author(s): Ke-long Chen; Zhu Xu; Zhen-chu Wen; Yu-zhuo Chen
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Paper Abstract

This paper presents a formulation of the reconstruction of displacementfield by carrier holography. We develop a method for determining the displacement field inside an object while it is loaded or heated based on the principle of continuity and the theory of backprojection. In the case of non-penetrating material the projection data of derivative of the displacement components are obtained from frank projections of entire deformable body. The reconstruction algorithm adopts the convolution and FFT techniques in Radon inversion formula. A cylindrical specimen which is subjected to a concentrated compression on the top is discussed as the test object. The reconstruction result i s compared with analytical solution. 1 .

Paper Details

Date Published: 1 March 1991
PDF: 8 pages
Proc. SPIE 1385, Optics, Illumination, and Image Sensing for Machine Vision V, (1 March 1991); doi: 10.1117/12.25359
Show Author Affiliations
Ke-long Chen, Southeast Univ. (China)
Zhu Xu, Southeast Univ. (China)
Zhen-chu Wen, Southeast Univ. (China)
Yu-zhuo Chen, Southeast Univ. (China)

Published in SPIE Proceedings Vol. 1385:
Optics, Illumination, and Image Sensing for Machine Vision V
Donald J. Svetkoff; Kevin G. Harding; Gordon T. Uber; Norman Wittels, Editor(s)

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