Wavelet despiking of fractographs

Jean-Marie Aubry; Naoki Saito

doi:10.1117/12.408675

4 December 2000 Wavelet despiking of fractographs

Jean-Marie Aubry, Naoki Saito

Author Affiliations +

Proceedings Volume 4119, Wavelet Applications in Signal and Image Processing VIII; (2000) https://doi.org/10.1117/12.408675
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

Fractographs are elevation maps of the fracture zone of some broken material. The technique employed to create these maps often introduces noise composed of positive or negative 'spikes' that must be removed before further analysis. Since the roughness of these maps contains useful information, it must be preserved. Consequently, conventional denoising techniques cannot be employed. We use continuous and discrete wavelet transforms of these images, and the properties of wavelet coefficients related to pointwise Hoelder regularity, to detect and remove the spikes.

Citation Download Citation

Jean-Marie Aubry and Naoki Saito "Wavelet despiking of fractographs", Proc. SPIE 4119, Wavelet Applications in Signal and Image Processing VIII, (4 December 2000); https://doi.org/10.1117/12.408675

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