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bmcfee/frame2d.py

Created August 15, 2019 22:00
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In-place patching (framing of 2d inputs)
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frame2d.py
def frame2d(x, patch_length, hop_length):
n_frames = 1 + (x.shape[-1] - patch_length) // hop_length
x_frame = np.lib.stride_tricks.as_strided(x, shape=(x.shape[0], patch_length, n_frames),
strides=(1 * x.itemsize, x.shape[0] * x.itemsize, hop_length * x.shape[0] * x.itemsize))
return x_frame
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