Motion graphics are graphics that use video footage and/or animation technology to create the illusion of motion or rotation, and are usually combined with audio for use in multimedia projects.
Crowd multiplication is the process of simulating the movement of a large number of entities or characters in a given scene.
Set extension is a technique to create the impression of a more formidable setting in a continuity which helps in reducing the production costs.
Visual effects supervision helps and directs in a right way for achieving the creative aims of the director and producers through the use of visual effects.
Chroma keying, is a technique for compositing (layering) two images or video streams together based on color hues (chroma range).
Compositing is the combining of visual elements from separate sources into single images, often to create the illusion that all those elements are parts of the same scene.
Match moving is a cinematic technique that allows the insertion of computer graphics into live-action footage with correct position, scale, orientation, and motion relative to the photographed objects in the shot.
Wire removal is a visual effects technique used to remove wires, cables in films, usually used as a safety precaution or to simulate flying actors or miniatures.
The term rotoscoping refers to the technique of manually creating a matte for an element on a live-action plate so it may be composited over another background.