Motion Capture

What is motion capture?

Motion capture is basically 3D animation. It is used by filming people wearing sensors each and every pivot point on their body and translating the footage onto a 3D model. When used in filmmaking sensors are used more on the face to portray detailed human emotion and very small facial expressions this is sometimes referred to as performance capture.

A history of motion capture           

Motion capture was first developed in late 1970’s making the process fairly new. It was first created for military use to track the movements of pilots heads and has been used in entertainment since the mid 1980’s. Motion capture was inspired by the method rotoscoping. Rotoscoping was used in the Disney film “Snow White and the Seven Dwarves” which was made in 1937. Rotoscoping is where animator’s traced animation over film footage of live actors playing out the scenes they used this process to get convincing motion for the human characters.

            In 1980’s as biochemics labs were using mocap to analyse human motion techniques used in these studies began to be used in the computer graphics industry In the early 1980’s a professor of kinesiology and computer science at Simon Fraser University named Tom Calvert attached sensors to a body and used the output to create and study “computer animated figures for choreographic studies” and “clinical assessment of movement abnormalities.”

How and where is it used?

Motion capture is used in military, entertainment, sports, medical applications and validation of computer vision. It was used in the military for tracking purposes like tracking the movement of a pilots head etc. In sports and medicine mocap is used for biological research that is focused on the mechanical workings of the body for example how organs, muscles and joints work therefore enabling researchers to know the impact of injuries. It is also used to analyse athletic performance in sport. In entertainment mocap is used in 2D and 3D animation to create games, films, TV programs etc.

http://www.siggraph.org/education/materials/HyperGraph/animation/character_animation/motion_capture/history1.htm

http://en.wikipedia.org/wiki/Motion_capture

http://web.mit.edu/comm-forum/papers/furniss.html

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