Figure 10

Close-up ultrasonic delay-and-sum images of the scatterer, produced for (A–D) Case 1 and (E,F) Case 2 by array configurations utilising: (A,E) FMC, (B,F) Sub-sampled FMC, (C,G) SPT-SMC and (D,H) SED-SMC.The dynamic range used in all images is indicated on the right.