Digital video effects (DVEs) are

visual effect Visual effects (sometimes abbreviated as VFX) is the process by which imagery is created or manipulated outside the context of a live-action shot in filmmaking and video production. The integration of live-action footage and other live-action fo ...

s that provide comprehensive live video image manipulation, in the same form as

optical printer An optical printer is a device consisting of one or more film projectors mechanically linked to a movie camera. It allows filmmakers to re-photograph one or more strips of film. The optical printer is used for making visual effects for motion p ...

effects in film. DVEs differ from standard

video switcher A vision mixer is a device used to select between different live video sources and, in some cases, compositing live video sources together to create visual effects. In most of the world, both the equipment and its operator are called a vision ...

effects (often referred to as ''analog effects'') such as wipes or dissolves, in that they deal primarily with resizing, distortion or movement of the image. Modern video switchers often contain internal DVE functionality. Modern DVE devices are incorporated in high-end broadcast video switchers. Early examples of DVE devices found in the broadcast

post-production Post-production, also known simply as post, is part of the process of filmmaking, video production, audio production, and photography. Post-production includes all stages of production occurring after principal photography or recording indivi ...

industry include the

Ampex Ampex Data Systems Corporation is an American electronics company founded in 1944 by Alexander M. Poniatoff as a spin-off of Dalmo-Victor. The name ''AMPEX'' is an acronym, created by its founder, which stands for Alexander M. Poniatoff Excell ...

Digital Optics (ADO),

Quantel Quantel was a company based in the United Kingdom and founded in 1973 that designed and manufactured Digital data, digital production equipment for the Broadcasting, broadcast television, video production and motion picture industries. It was ...

DPE-5000, Vital Squeezoom,

NEC is a Japanese multinational information technology and electronics corporation, headquartered at the NEC Supertower in Minato, Tokyo, Japan. It provides IT and network solutions, including cloud computing, artificial intelligence (AI), Inte ...

E-Flex and the Abekas A5x series of DVEs. By 1988, Grass Valley Group caught up with the competition with their Kaleidoscope,Grass Valley 1988 Kaleidoscope Demo
/ref> which integrated ADO-type effects with their widely used line of broadcast switching gear. DVEs are used by the

broadcast television Broadcast television systems (or terrestrial television systems outside the US and Canada) are the encoding or formatting systems for the transmission and reception of terrestrial television signals. Analog television systems were standardized ...

industry in

live television Live television is a television production broadcast in real-time, as events happen, in the present. In a secondary meaning, it may refer to streaming television where all viewers watch the same stream simultaneously, rather than watching vide ...

production environments like

television studio A television studio, also called a television production studio, is an installation room in which video productions take place, either for the production of live television and its recording onto video tape or other media such as SSDs, or for ...

s and

outside broadcast Outside or Outsides may refer to: * Wilderness Books and magazines * ''Outside'', a book by Marguerite Duras * Outside (magazine), ''Outside'' (magazine), an outdoors magazine Film, theatre and TV * Outside TV (formerly RSN Television), a televi ...

s. They are commonly used in video

References

Broadcast engineering Special effects Computer graphics Film editing Cinematic techniques {{tv-tech-stub

See also

References