Reconstruction algorithm of displacement field by using holographic image

Ke-long Chen; Zhu Xu; Zhen-chu Wen; Yu-zhuo Chen

doi:10.1117/12.25359

1 March 1991 Reconstruction algorithm of displacement field by using holographic image

Ke-long Chen, Zhu Xu, Zhen-chu Wen, Yu-zhuo Chen

Proceedings Volume 1385, Optics, Illumination, and Image Sensing for Machine Vision V; (1991) https://doi.org/10.1117/12.25359
Event: Advances in Intelligent Robotics Systems, 1990, Boston, MA, United States

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 .

Citation Download Citation

Ke-long Chen, Zhu Xu, Zhen-chu Wen, and Yu-zhuo Chen "Reconstruction algorithm of displacement field by using holographic image", Proc. SPIE 1385, Optics, Illumination, and Image Sensing for Machine Vision V, (1 March 1991); https://doi.org/10.1117/12.25359

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