floodlight.transforms

Collection of data transformation and processing functions.

Submodule Reference

• floodlight.transforms.filter
• floodlight.transforms.spatial
• floodlight.transforms.permutation
• floodlight.transforms.interpolation
• floodlight.transforms.temporal

Filter

butterworth_lowpass	Applies a digital Butterworth lowpass-filter to an XY data object.
savgol_lowpass	Applies a Savitzky-Golay lowpass-filter to an XY data object.
fir_lowpass	Applies a FIR lowpass-filter to an XY data object.
kalman	Applies a forward Kalman filter to an XY data object.
wiener	Applies a Wiener filter to an XY data object.

Spatial

subtract_centroid	Subtracts the per-frame team centroid from all player positions.
min_max_normalize	Min-max normalizes an (N, 2) formation array to [0, 1] per axis.

Permutation

assign_roles

Assigns consistent roles to players across frames using the Hungarian algorithm.

Interpolation

interpolate_linear	Linearly interpolates gaps in XY tracking data along the temporal axis.
interpolate_polynomial	Interpolates gaps in XY tracking data using piecewise polynomial interpolation along the temporal axis.
interpolate_spline	Interpolates gaps in XY tracking data using spline interpolation along the temporal axis.

Temporal

resample

Resample a floodlight core object to a new framerate.