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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


© 2009-2014 Bradley Treeby and Ben Cox.