Image Processing, Of Digitized Diffractographic Profile Data

Alexander C. Livans; Hsi-Ping Liu

doi:10.1117/12.954716

9 July 1976 Image Processing, Of Digitized Diffractographic Profile Data

Alexander C. Livans, Hsi-Ping Liu

Proceedings Volume 0074, Image Processing; (1976) https://doi.org/10.1117/12.954716
Event: Image Processing, 1976, Pacific Grove, United States

Abstract

A two dimensional diffractographic technique has been developed, the purpose of which is to determine exactly the displacement and profile changes of the test object as a function of time To illustrate this process we have mapped continuously until failure the profile of a cylindrical rock sample. The resulting diffraction patterns have been recorded on film and processed digitally. It is shown that under certain conditions the interpretation of the two dimensional patterns is a spatial Fourier transform in the small dimension, amplitude modulated by Fresnel diffraction of the large one. This interpretation results in efficient and simple digital processing using conventional interpolation and filtering techniqueso thus reconstructing the profile and time history of the event with a typical strain resolution of 10^-5.

Citation Download Citation

Alexander C. Livans and Hsi-Ping Liu "Image Processing, Of Digitized Diffractographic Profile Data", Proc. SPIE 0074, Image Processing, (9 July 1976); https://doi.org/10.1117/12.954716

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