More complex types of processing can be to track a specific object in the image over time, to group points that belong to the same rigid object that is moving in the scene, or to determine the magnitude and direction of the motion of every point in the image.
The passage describes advanced processing techniques that can be applied to analyze images. These techniques allow for tracking a specific object, identifying groups of points belonging to a moving rigid object, and calculating the magnitude and direction of motion for each point in the image.