Fourier-based ultrafast ultrasound imaging based on in-phase quadrature (IQ) data
Ultrafast imaging based on plane wave (PW) / diverging wave (DW) is an active area of research in ultrasound acquisitions because of its capacity of reaching high frame rate. Beamforming of received echoes in Fourier domain provides comparable image quality but lower computational complexity with respect to the conventional DAS approach [Zhang et al., UFFC, 2016]. However, the current state-of-the-art Fourier-based techniques only perform the reconstruction on radio frequency (RF) data. To process less data without loss of information, we adapted in this study the Fourier-based formalism of Lu [Lu et al., UFFC, 1997] to IQ data reconstruction for both PW and DW imaging.