Figure 2
(a) Simulated X-ray images at various distances Z1 from the test object to detector (I–V). The binary image was obtained by Canny edge detection and the generalized Hough transform at Z1 = 50 cm (VI). (b) Typical instantaneous X-ray raw image (I). Spatial distributions of size (II) and velocity (III) of rising microbubbles. (c) Probability density functions and average velocities of microbubbles according to bubble radius. |