Fig. 7.

Cross-sectional flow image obtained without adaptive thresholding when bulk motion was in x dimension (a) and y dimension (b); Cross-sectional flow image obtained with adaptive thresholding when bulk motion was in x dimension (c) and y dimension (d); contrast of flow image, with (green) and without (blue) adaptive thresholding at different magnitude of motion in x direction (e) and y direction (f); contrast enhancement through adaptive thresholding when motion was in x direction (g) and y direction (h).