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Fig. 2.

image

Illustration of a centroid moving from time step 15 (left) to time step 20 (center) to time step 25 (right). The blue point indicates the start point of the centroid, and the green point indicates the current centroid estimate.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.