Smoothing

This tab is used to define the filtering options applied to the raw data of the position of the animal's center in order to remove noise and artefacts inherent to the acquisition method. For more information on these parameters, please see the " Calculation method " section.

Minimum distance taken into account

You can specify the minimum distance between 2 successive points. All points "too close" to the previous point will be deleted. This prevents small apparent movements related to the definition of the webcam or to the noise of the system.

A value of 2 or 3 millimeters is recommended.

Smoothing algorithm:

The drop-down list lets you choose a smoothing algorithm that will be applied to the points of the trace before calculating the derived data: distance, speed, acceleration, ...

Several smoothing algorithms are available:

No smoothing.

'Lowess' method (strong)

Lowess method (lightweight) (Recommended)

Weighted moving average

Weighted Moving Average (Stavitsky-Golay)

	The initial coordinates of the acquisition (raw data) are kept. You can return to the initial data at any time by selecting the option: "No smoothing"
	These parameters are important because they influence all the results of the experiment. If you are not completely familiar with the concepts discussed in this topic, it is advisable to leave the recommended values.