Fig. 4From: In silico simulation of liver crack detection using ultrasonic shear wave imagingThe use of the directional filtering algorithm for the displacement data obtained from speckle tracking at 16.6Â ms. a A snapshot of the unfiltered waveform (at 16.6Â ms). b Snapshots of the incident and reflected waveforms (at 16.6Â ms), separated by the directional filterBack to article page