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Motion tracking may refer to: Motion capture , the process of recording the movement of objects or people Match moving , a cinematic technique that allows the insertion of computer graphics into live-action footage with correct position, scale, orientation, and motion relative to the objects in the shot
Motion tracking or motion capture started as a photogrammetric analysis tool in biomechanics research in the 1970s and 1980s, and expanded into education, training, sports and recently computer animation for television, cinema, and video games as the technology matured. Since the 20th century, the performer has to wear markers near each joint ...
Examples of simple motion models are: When tracking planar objects, the motion model is a 2D transformation (affine transformation or homography) of an image of the object (e.g. the initial frame). When the target is a rigid 3D object, the motion model defines its aspect depending on its 3D position and orientation.
However, the purpose of a tracking matte is to prevent tracking algorithms from using unreliable, irrelevant, or non-rigid tracking points. For example, in a scene where an actor walks in front of a background, the tracking artist will want to use only the background to track the camera through the scene, knowing that motion of the actor will ...
Motion tracker can refer to: Motion detector, a device that utilizes a sensor to detect nearby motion; Motion capture, the process of recording the movement of ...
FreeTrack is a general-purpose optical motion tracking application for Microsoft Windows, released under the GNU General Public License, that can be used with common inexpensive cameras. Its primary focus is head tracking with uses in virtual reality , simulation , video games , 3D modeling , computer aided design and general hands-free ...
In computing, a motion controller is a type of input device that uses accelerometers, gyroscopes, cameras, or other sensors to track motion. Motion controllers see use as game controllers , for virtual reality and other simulation purposes, and as pointing devices for smart TVs and Personal computers .
Video motion analysis is a technique used to get information about moving objects from video. Examples of this include gait analysis , [ 1 ] sport replays , speed and acceleration calculations and, in the case of team or individual sports, task performance analysis.