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Figure 2
Processing. (a) A typical reconstructed liquid foam tomogram (gray value image), (b) phase segmented (binary image) and (c) bubble segmented 3D images (integer image). The bubbles are randomly colored to distinguish them. Individual image quantification. (d) Individual bubble topology information, including the coordination number Z, the individual film area A, the normal vector and semi-axes (n, a, b). (e) Individual bubble stress σ. The color and size of the spheres represent the stress amplitude. Subsequent images quantification. (f) individual bubble displacement, i.e. the discrete flow field v. The color and vector size represent the velocity amplitude. (g) The field of elementary plastic rearrangements (T1 events). Here each event is shown by two pairs of bars, randomly colored to distinguish each individual T1 event. The zoom shows how they relate to the lost and new contacts. For more insights on the T1 event process, see Fig. 4[link]. Combined tracking. (h) Example of individual bubble properties tracked over several images, such as velocity v, stress σ and coordination number Z. The color and symbol size represent the measured amplitude.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
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