Figure 5 | Scientific Reports

Figure 5

From: Integrating optical coherence tomography with gravimetric and video analysis (OCT-Gravimetry-Video method) for studying the drying process of polystyrene latex system

Figure 5

Speckle contrast (Ks) analysis of the packing process of L latex. (a) 100 consecutive OCT B-scan images of the cross-section of latex in ∼1.1 s, that is ∼11 ms per image. (b) 2D OCT structural image, derived by averaging the 100 images in (a). (c) Time-lapse OCT speckle contrast profile showing the depth-resolved Ks as a function of drying time. Ks is calculated using a 200 × 1 moving window (a yellow dashed line as shown in (b)). (d) 2D OCT speckle contrast image calculated using an 11 × 11 moving window (a yellow square as shown in (b)). Red line in (c) indicates the time point (i.e. 98 min) at which the depth-resolved Ks is calculated from (b).

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