Amplitude and Phase Estimation Combined APES-based Coherence Factor for Ultrasound Imaging
Abstract：In medical ultrasound imaging,the munimum variance(MV) beamforming method can effectively improve the imaging resolution at the expense of imaging contrast and robustness.A beamforming method which combines amplitude and phase estimation(APES) with APES-based coherence factor was proposed, Firstly, preliminary result was computed using the APES algorithm,and then the output of APES was used to replace the coherent sum in coherence factor(CF) for weighting factor;finally the APES-based coherence factor was used to optimize the results of APES beamforming for ultrasound imaging.Simulations of point scatters and cyst phantom were used to verify the proposed method.The results show that the proposed method provides improved contrast and more robustness than the APES and APES+CF beamforming method.
Keywords：Ultrasound imagingBeamformingMinimum varianceAmplitude and phase estimationCoherence factor
Publication Date：2017-01-01
Online Publishing Date：2026-09-11(First online date of this platform, not the publication date of the document)
Pages：5( 1-5 )