Visual effects technique allowing the insertion of computer graphics into live-action footage
"Camera Tracking" redirects here. For other uses, see Motion tracking.
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In visual effects, match moving is a technique that allows the insertion of 2D elements, other live action elements or CG computer graphics into live-action footage with correct position, scale, orientation, and motion relative to the photographed objects in the shot. It also allows for the removal of live action elements from the live action shot. The term is used loosely to describe several different methods of extracting camera motion information from a motion picture. Sometimes referred to as motion tracking or camera solving, match moving is related to rotoscoping and photogrammetry.
Match moving is sometimes confused with motion capture, which records the motion of objects, often human actors, rather than the camera. Typically, motion capture requires special cameras and sensors and a controlled environment (although recent developments such as the Kinect camera and Apple's Face ID have begun to change this). Match moving is also distinct from motion control photography, which uses mechanical hardware to execute multiple identical camera moves. Match moving, by contrast, is typically a software-based technology, applied after the fact to normal footage recorded in uncontrolled environments with an ordinary camera.
Match moving is primarily used to track the movement of a camera through a shot so that an identical virtual camera move can be reproduced in a 3D animation program. When new animated elements are composited back into the original live-action shot, they will appear in perfectly matched perspective and therefore appear seamless.
As it is mostly software-based, match moving has become increasingly affordable as the cost of computer power has declined; it is now an established visual-effects tool and is even used in live television broadcasts as part of providing effects such as the yellow virtual down-line in American football.
In visual effects, matchmoving is a technique that allows the insertion of 2D elements, other live action elements or CG computer graphics into live-action...
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but in filmmaking and games, motion tracking usually refers more to matchmoving. In motion capture sessions, movements of one or more actors are sampled...
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graphics-acceleration cards manufactured by 3dfx Interactive Voodoo, a 3D matchmoving software program Voodoo (company), a video game company Voodoo (D'Angelo...
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motion of a group of pixels. These techniques are generally derived from matchmoving techniques used in special effects and compositing work. In the 2000s...
capture, the process of recording the movement of objects or people Matchmoving, a cinematic technique that allows the insertion of computer graphics...
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streams [...] most beautifully blended into a single, ever-moving pattern". In 1999 Going to the Match (1953) was sold at auction at Sotheby's for a record...
dictionary. Tracking may refer to: Tracking, in computer graphics, in matchmoving (insertion of graphics into footage) Tracking, composing music with music...
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1959". Moving Image Archive. National Library of Scotland. Retrieved 19 February 2018. Schorstein, Jon (director). "The Grand Match". Moving Image Archive...
This profile need not be salted, but it must be an animated function Matchmoving, for motion tracking in computer-generated imagery Mechatronics, the...
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