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Revert bugfix #299

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merged 1 commit into from
Jan 22, 2025
Merged

Revert bugfix #299

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6 changes: 3 additions & 3 deletions tonic/functional/event_downsampling.py
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Original file line number Diff line number Diff line change
Expand Up @@ -46,8 +46,8 @@ def differentiator_downsample(events: np.ndarray, sensor_size: tuple, target_siz
time = int(differentiated_time // dt)

# Separate events based on polarity and apply Heaviside
event_hist_pos = (np.maximum(event_histogram >= noise_threshold, 0)).clip(max=1)
event_hist_neg = (-np.minimum(-event_histogram >= noise_threshold, 0)).clip(max=1)
event_hist_pos = event_histogram >= noise_threshold
event_hist_neg = -event_histogram >= noise_threshold

frame_histogram[time,...,1] += event_hist_pos
frame_histogram[time,...,0] += event_hist_neg
Expand Down Expand Up @@ -154,4 +154,4 @@ def integrator_downsample(events: np.ndarray, sensor_size: tuple, target_size: t

dtype = np.dtype({'names': names, 'formats': formats})

return unstructured_to_structured(events_new.copy(), dtype=dtype)
return unstructured_to_structured(events_new.copy(), dtype=dtype)
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