Patent ID: 9220481
Filing Date: 2015-12-29
Classification: A61B,G01S

Abstract:
1. A beamforming method, comprising: modulating a transmission signal; transmitting the modulated transmission signal to a subject; forming a reception beam by beamforming echo signals reflected from the subject; estimating a point spread function (PSF) for each region of a data image by applying the formed reception beam; estimating a filter using the estimated PSF; and filtering the formed reception beam by application of the estimated PSF and the estimated filter, wherein the estimating of the PSF comprises estimating the PSF by application of the formed reception beam in a depth direction corresponding to a z direction of an xyz cartesian coordinate system, a lateral direction corresponding to an x direction of the xyz cartesian coordinate system, and an elevation direction corresponding to a y direction of the xyz cartesian coordinate system, wherein the filter comprises a spatial filter.