Different from conventional focused ultrasound, ultrafast ultrasound imaging employs full-field transmission such as a plane wave to achieve frame rates in the order of 10 kHz. Image reconstruction of plane-wave ultrasound is more computational efficient to be processed in Fourier domain than in time domain. A widely-applied seismic wave migration technique, the Stolt's f-k Fourier-domain method, was modified to fit the plane wave transmission-receiving process into the Exploding Reflector Model (ERM). In comparison with the ideal fitting in Lu's f-k method, the fitting in the Stolt's f-k is slightly imprecise for the higher lateral Fourier components that results in residual patterns that degrade the image quality. We propose a template that can be applied in Fourier domain directly to deconvolute the residual point spread function (residual PSF) induced by imprecise fitting.
|Title of host publication||2017 IEEE International Ultrasonics Symposium, IUS 2017|
|Publication status||Published - 31 Oct 2017|
|Event||IEEE International Ultrasonics Symposium, IUS 2017 - Omni Shoreham Hotel, Washington, United States|
Duration: 6 Sep 2017 → 9 Sep 2017
|Conference||IEEE International Ultrasonics Symposium, IUS 2017|
|Period||6/09/17 → 9/09/17|