Text this: Eigenspace-based minimum variance beamformer combined with sign coherence factor : application to linear-array photoacoustic imaging

  ______   _    _     _____     ______   _    _   
 /_   _// | || | ||  / ____||  /_   _// | |  | || 
   | ||   | || | || / //---`'   -| ||-  | |/\| || 
  _| ||   | \\_/ || \ \\___     _| ||_  |  /\  || 
 /__//     \____//   \_____||  /_____// |_// \_|| 
 `--`       `---`     `----`   `-----`  `-`   `-`