Beamforming

• Focusing and Steering
  • Simple cardiac probe
  • Pressure field of a flat transducer
  • Focusing
  • Steering
  • The influence of transducer size, frequency, and focal depth
• Electronic focusing I
  • One array element
  • Two array elements
  • Transmit focusing
  • Receive focusing
• Electronic focusing II
  • Scanning again
  • The probe
  • The pulse
  • The phantom
  • The sequence
  • The Fresnel simulator
  • Generating an image
  • Focused beams
• Multi Focus Imaging (MFI) and Dynamic Receive Focusing (DRF)
  • Multi Focus Imaging (MFI)
  • Dynamic Receive Focusing (DRF)
• Apodization
  • Apodization
  • Fraunhofer aproximation analysis
  • Towards pixel-based beamforming
• Expanding Aperture
  • Aperture and lateral resolution
  • Depth and lateral resolution
  • Expanding aperture