Contents. ApodizationApodization Functions1D and 2D ApodizationPractical Implementation on Transmit and receiveSingle Element Apodization vs. Array Apodization. Apodization. Narrow the width of the ultrasonic beam produced by the imaging transducer in order to improve the quality of ultrasonic i
1. Apodization in Ultrasound Imaging Xu Ye
Presentation for Ultrasound Course
March 1, 2010
2. Contents Apodization
1D and 2D Apodization
Practical Implementation on Transmit and receive
Single Element Apodization vs. Array Apodization
3. Apodization Narrow the width of the ultrasonic beam produced by the imaging transducer in order to improve the quality of ultrasonic images.
Suppress the side lobes of the beam in order to prevent their interference with the main imaging lobe of the beam.
4. Apodization Functions Gaussian window
5. Gaussian Apodization Gaussian function where e describes the degree of truncation (e = 8 for uniform excitation) and the circ function sets ?o(r1) to zero outside the transducer area. The pressure phasor ( p =j??oF) can be expressed as for on-axis observation points (r = 0) and any value of e