1) Computer animation 
Motion capture (Mo-cap for short) is the process of recording the movement of objects or people. It is used in military, entertainment, sports, medical applications, and for validation of computer vision and robotics. In filmmaking and video game development, it refers to recording actions of human actors, and using that information to animate dig...
Often abbreviated to mo-cap, motion capture is the process of recording the movements of a live actor, and converting them to a 3D data format which can then be applied to a virtual character.
The creation of animations by means of a live actor and special equipment to record the actor's movements.
key points on (usually) an actor are tracked so that their xyz positions are recorded over time. This data can then be used to transfer realistic movements to computer generated models.