Comparison of acoustic-emission tomography images to an etalon
Source abstract
Abstract
Criteria for comparing images of acoustic-emission tomography to an etalon via numerical simulation are tested. The results of approbation of metric and correlation criteria for comparing images and the signal-to-noise ratio for 3D inhomogeneities of sinusoidal and gaussoid types are presented. The pixel-by-pixel absolute and relative differences between images are efficient for obtaining the spatial distribution of differences between images and are quite sensitive to the inhomogeneity parameters and the data-collection and tomographic-reconstruction schemes. The comparison of the reconstructed images to a gaussoid-type etalon has shown that the image-correlation coefficient and the signal-to-noise ratio are quite sensitive to the inhomogeneity parameters and the data-collection and tomographic-reconstruction schemes. The integral metric criteria (the mean absolute and rms deviations) are almost insensitive to these parameters. The comparison of the reconstructed images to a sinusoidal etalon characterized by a large constant component has shown that the metric criteria and the centered-data correlation coefficient are sensitive to changes in the inhomogeneity parameters and the data-collection and tomographic-reconstruction schemes.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Seismic Imaging and Inversion Techniques · Medical Imaging Techniques and Applications · Advanced X-ray and CT Imaging
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (5)
Show source-provided references
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