scan_convert_iq_data.py source

This example will create some fake IQ data and perform envelope detection, log compression and scan conversion.

This example will create some fake IQ data and perform envelope detection, log compression and scan conversion.

import fast
import numpy as np
import matplotlib.pyplot as plt

# Create some fake IQ beamspace data
iq_data = fast.Image.createFromArray(np.random.normal(size=(512,512,2)).astype(np.float32))

# Create processing & visualization chain
envelope = fast.EnvelopeAndLogCompressor.create()\
        .connect(iq_data)

scan_convert = fast.ScanConverter.create(
                width=1280,
                height=1024,
                startDepth=0,
                endDepth=120,
                startAngle=-0.785398,
                endAngle=0.785398
        ).connect(envelope)

renderer = fast.ImageRenderer.create()\
        .connect(scan_convert)

fast.SimpleWindow2D.create()\
        .connect(renderer)\
        .run()

# Visualize output of scan converter with matplotlib instead of FAST:
plt.imshow(np.asarray(scan_convert.runAndGetOutputData())[..., 0], cmap='gray')
plt.show()