Fig. 12
From: A comparison of point-tracking algorithms in ultrasound videos from the upper limb
Reversed tracking correction and reversed sigmoid tracking correction visualized: visual of RTC and RSTC using the y-coordinate of an example point. The purple line represents the path of the point tracked forward in time. The orange line represents the path of the point tracked backward in time. The yellow line is the averaged path from RTC. The green line is the sigmoid-scaled path from RSTC. The red points are the human labeled points