scanConversion
Convert scan-lines in polar coordinates to a B-mode ultrasound image.
Syntax
b_mode = scanConversion(scan_lines, steering_angles, image_size, c0, dt) b_mode = scanConversion(scan_lines, steering_angles, image_size, c0, dt, resolution)
Description
scanConversion computes the remapping between a series of scan lines in polar coordinates (i.e., taken at different steering angles) to a B-mode ultrasound image in Cartesian coordinates suitable for display. The remapping is performed using bilinear interpolation via interp2.
Inputs
scan_lines |
matrix of scan lines indexed as (angle, time) |
steering_angles |
array of scanning angles [degrees] |
image_size |
[x, y] size of the desired output image [m] |
c0 |
sound speed in the medium [m/s] |
dt |
time step used in the acquisition of the scan lines [s] |
resolution |
optional input to set the resolution of the output images in pixels (default = [256, 256]) |
Outputs
b_mode |
the converted B-mode ultrasound image |
See Also
interp2