High-Definition Plane-Wave Ultrasound Imaging Based on Subbands Phase Information Extracted From Echo Signals

We have been studying high-definition ultrasound imaging based on phase information of subband components extracted from received echoes. We address coherent imaging with array transducers based on plane wave transmission. Coherent imaging can be realized algebraically or analytically based on modeling the received signal as a convolution of reflected waves from scatterers. Receive Beam-Forming, on the other hand, has been effectively used as an approximate method to reduce computational complexity. For both above-mentioned coherent imaging schemes, we have proposed high resolution imaging approaches based on the extraction of subband components from the received signal, respectively, in order to effectively utilize the phase information of the echoes. In this study, we propose a super resolution imaging method that integrates both approaches and is specifically designed for application to medical diagnosis. We confirm the performance of the proposed method through a series of experiments on phantom and biological images.