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By default Ethotrack detects the position of the animal's center of gravity. All measurements of distances, speeds, ... are calculated from this position.
Ethotrack can also detect the position of the animal's head and use it as a criterion for entering or leaving an area.
If you want to use the position of the animal's head to detect the entry or exit of an area select the "Yes" option, otherwise select the "No" option to reduce the processing time during the 'analysis.
Warning: if you modify this option and choose to detect the animal's head when certain tests have already been analyzed, you will have to redo the analysis of these tests.
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