Editing Computer vision (section)

===Motion analysis===
Several tasks relate to motion estimation, where an image sequence is processed to produce an estimate of the velocity either at each points in the image or in the 3D scene or even of the camera that produces the images. Examples of such tasks are:

* '''[[Egomotion]]'''{{spaced ndash}}determining the 3D rigid motion (rotation and translation) of the camera from an image sequence produced by the camera.
* '''[[video tracking|Tracking]]'''{{spaced ndash}}following the movements of a (usually) smaller set of interest points or objects (''e.g.'', vehicles, objects, humans or other organisms<ref name="BruijningVisser2018"/>) in the image sequence. This has vast industry applications as most high-running machinery can be monitored in this way.
* '''[[Optical flow]]'''{{spaced ndash}}to determine, for each point in the image, how that point is moving relative to the image plane, ''i.e.'', its apparent motion. This motion is a result of both how the corresponding 3D point is moving in the scene and how the camera is moving relative to the scene.