Now showing items 1-3 of 3

    • Influence of missing array elements on phase aberration correction for medical ultrasound 

      Karaman, M.; Köymen, Hayrettin; Atalar, Abdullah; O'Donnell, M. (IEEE, 1994)
      The influence of missing array elements on aberration correction based on time delay estimation using radio frequency signals of neighboring elements is experimentally investigated. Normalized cross correlation and sum of ...
    • A phase aberration correction method for ultrasound imaging 

      Karaman, M.; Atalar, Abdullah; Köymen, Hayrettin; O'Donnell, M. (IEEE, 1993)
      A computationally efficient method for phase aberration correction in ultrasound imaging is presented. The method is based on time delay estimation via minimization of the sum of absolute differences between radio frequency ...
    • Reduction of effects of inactive array elements in phase aberration correction 

      Karaman, Mustafa; Köymen, Hayrettin; Atalar, Abdullah; O'Donnell, M. (IEEE, 1993)
      Phase aberration correction based on time delay estimation via minimization of sum of absolute difference (SAD) between radio frequency (RF) signals of neighboring elements is studied in the presence of missing elements. ...