Signal Processing#

get_rising_frames_from_ttl(trace: ndarray, threshold: Optional[float] = None) → ndarray[source]#

Return the frame indices for rising events in a TTL pulse.

Parameters

  • trace (numpy.ndarray) – A TTL signal.

  • threshold (float, optional) – The threshold used to distinguish on/off states in the trace. The mean of the trace is used by default.

Returns

rising_frames – The frame indices of rising events.

Return type

numpy.ndarray

get_falling_frames_from_ttl(trace: ndarray, threshold: Optional[float] = None) → ndarray[source]#

Return the frame indices for falling events in a TTL pulse.

Parameters

  • trace (numpy.ndarray) – A TTL signal.

  • threshold (float, optional) – The threshold used to distinguish on/off states in the trace. The mean of the trace is used by default.

Returns

falling_frames – The frame indices of falling events.

Return type

numpy.ndarray