• ImageFeatureTrack tracks feature points in a sequence of images.
• ImageFeatureTrack works with an AnimatedImage or a sequence of images of the same dimensions.
• ImageFeatureTrack [{image₁,image₂,…,image_n}] automatically determines a set of feature points in the images to track, and returns a list {pts₁,pts₂,…,pts_n}, where pts_i is the position of the features in image_i.
• ImageFeatureTrack assumes the standard image coordinate system, where x runs from 0 to width and y runs from 0 to height. Position {0,0} corresponds to the bottom-left corner of the image.
• If a point is not found in some image_i, the coordinates are returned as Missing [].
• The following options can be specified:
• Masking All region of interest
  MaxFeatureDisplacement 15 maximum distance between corresponding points in adjacent images
  MaxFeatures 100 maximum number of tracked points
  MaxIterations 20 maximum number of iterations
  Tolerance 0.03 tolerance for matching points
• With the setting MaxFeatureDisplacement->{r₁,r₂}, different search window ranges can be specified for vertical and horizontal directions.
• With Masking->roi, the set of points is restricted so that the returned points pts₁ of image₁ all lie within the region of interest roi.
• The tracking between subsequent images is computed by an iterative algorithm. With MaxIterations->n and Tolerance->tol, the algorithm terminates when the iterative displacement is less than tol or the number of iterations exceeds n.

Basic Examples  (1)

Scope  (2)

Options  (2)

Applications  (2)

Interactive Examples  (1)

Neat Examples  (1)