zea.beamform.phantoms

Functions

fibonacci([alpha, num_scatterers])

Generates scatterer positions based on the Fibonacci sphere algorithm.

fish()

Returns a scatterer phantom for ultrasound simulation tests.

golden_ratio([num_scatterers])

Generates scatterer positions based on the golden ratio spiral.

lissajous([a, b, delta, num_scatterers])

Generates scatterer positions based on a Lissajous curve.

rose([k, num_scatterers])

Generates scatterer positions based on the Rose curve.
zea.beamform.phantoms.fibonacci(alpha=0.5, num_scatterers=100)[source]

Generates scatterer positions based on the Fibonacci sphere algorithm.

Parameters:

  • num_scatterers (int) – Number of scatterer points to generate.

  • alpha (float) – Scaling factor for the z-coordinate.

Returns:

The scatterer positions of shape (num_scatterers, 3).

Return type:

ndarray

zea.beamform.phantoms.fish()[source]

Returns a scatterer phantom for ultrasound simulation tests.

Returns:

The scatterer positions of shape (104, 3).

Return type:

ndarray

zea.beamform.phantoms.golden_ratio(num_scatterers=100)[source]

Generates scatterer positions based on the golden ratio spiral.

Parameters:

num_scatterers (int) – Number of scatterer points to generate.

Returns:

The scatterer positions of shape (num_scatterers, 3).

Return type:

ndarray

zea.beamform.phantoms.lissajous(a=3, b=2, delta=1.5707963267948966, num_scatterers=200)[source]

Generates scatterer positions based on a Lissajous curve.

Parameters:

  • a (int) – Frequency parameter for the x-coordinate.

  • b (int) – Frequency parameter for the z-coordinate.

  • num_scatterers (int) – Number of scatterer points to generate.

Returns:

The scatterer positions of shape (num_scatterers, 3).

Return type:

ndarray

zea.beamform.phantoms.rose(k=3, num_scatterers=80)[source]

Generates scatterer positions based on the Rose curve.

Parameters:

  • k (int) – The frequency parameter of the rose curve.

  • num_scatterers (int) – The number of scatterers to generate along the curve.

Returns:

The scatterer positions of shape (num_scatterers, 3).

Return type:

ndarray