Fig. 6
From: A comparison of point-tracking algorithms in ultrasound videos from the upper limb
Comparing tracking jitter in DLC and LK with correction. a A representative example of a tracked point’s x-coordinate with DLC tracking in black and LK + RSTC + STC tracking in orange. b High-pass filtered (> 15 Hz) signals from (a) to contrast the amount of jitter with these two approaches. Outlier from DLC tracking shown with red arrow. c Group data contrasting the average amount of absolute jitter. Error bars represent SEM across 20 subjects (*** p < 0.0001)