Concept
Echo sounding
Related publications (26)
Inverse Problems in Pulse-Echo Ultrasound: Exploiting Coherence for Image Enhancement and Quantitative Imaging
Whereas pulse-echo ultrasound imaging relied on focused acoustic waves since its inception, the last two decades have seen the development of techniques based on unfocused waves, including ultrafast ultrasound imaging. In large part due to the emergence of ...
EPFL2024Bed Topography Inference from Velocity Field Using Deep Learning.
Christophe Ancey, Mehrdad Kiani Oshtorjani
Measuring bathymetry has always been a major scientific and technological challenge. In this work, we used a deep learning technique for inferring bathymetry from the depth-averaged velocity field. The training of the neural network is based on 5742 labora ...
2023Combining active and passive acoustic methods to image hydraulic fracture growth in laboratory experiments
Brice Tanguy Alphonse Lecampion, Seyyedmaalek Momeni, Dong Liu
We combine active and passive acoustic measurements to improve the spatio- temporal imaging of hydraulic fracture growth performed under true triaxial confinement in the laboratory. 64 active piezo-electric transducers (54 P waves, 10 S waves) work in sour ...
IOP2021Directional Cross-Correlation for Improved Aberration Phase Estimation in Pulse-Echo Speed-of-Sound Imaging
Jean-Philippe Thiran, Samuel Denys Beuret, Simon Canales
There has been a recent surge in methods targeting the recovery of a speed-of-sound map from pulse-echo ultrasound measurements. We focused in this work on a particular technique and identified a drawback shared by similar methods - namely the necessity of ...
IEEE2021