التفاصيل البيبلوغرافية
| العنوان: |
FoilTrack: a package to increase strain-resolution by improved X-radiographic image processing. |
| المؤلفون: |
Hunt, Simon A. |
| المصدر: |
High Pressure Research; Dec2023, Vol. 43 Issue 4, p263-278, 16p |
| مصطلحات موضوعية: |
SEISMIC waves, DIGITAL image correlation |
| مستخلص: |
In high pressure multi-anvil experiments X-radiography is used to ascertain strain in deforming samples because the tooling prevents optical or other direct observations of the sample. The processing of these X-radiographic images to determine bulk sample strain is one of the limiting factors to making measurements closer to the strains and strain-rates that occur during mantle convection or the passage of seismic waves. Typically, sample deformation in these experiments is tracked by the displacement of high-contrast marker foils in X-radiographs. X-radiographs are treated individually or pairwise in a multi-step process that tracks the displacement of marker foils during experiments. Here I develop a new algorithm, FoilTrack, that treats all the X-radiographic observations in a single-step process, resulting in improved accuracy and consistency of length changes determined from X-radiographic images, as well as providing more realistic parameter uncertainty. The improvements are demonstrated using data from small-strain sinusoidal deformation experiments. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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