Burnt-in timecode is a human-readable on-screen version of the timecode information for a piece of material superimposed on a video image. BITC is sometimes used in conjunction with "real" machine-readable timecode, but more often used in copies of original material on to a non-broadcast format such as VHS, so that the VHS copies can be traced back to their master tape and the original time codes easily located.
Chroma key compositing, or chroma keying, is a visual-effects and post-production technique for compositing (layering) two or more images or video streams together based on colour hues. The technique has been used in many fields to remove a background from the subject of a photo or video – particularly the newscasting, motion picture, and video game industries. A colour range in the foreground footage is made transparent, allowing separately filmed background footage or a static image to be inserted into the scene. The chroma keying technique is commonly used in video production and post-production. This technique is also referred to as colour keying, colour-separation overlay, or by various terms for specific colour-related variants such as green screen or blue screen; chroma keying can be done with backgrounds of any colour that are uniform and distinct, but green and blue backgrounds are more commonly used because they differ most distinctly in hue from any human skin colour. No part of the subject being filmed or photographed may duplicate the colour used as the backing, or the part may be erroneously identified as part of the backing.
A title sequence is the method by which films or television programmes present their title and key production and cast members, utilizing conceptual visuals and sound. It typically includes the text of the opening credits, and helps establish the setting and tone of the program. It may consist of live action, animation, music, still images, and/or graphics. In some films, the title sequence is preceded by a cold open.
Closing credits and end credits are a list of the cast and crew of a particular motion picture, television show, and video game. While opening credits appear at the beginning of a work, closing credits appear close to, and at the very end of a work. A full set of credits can include the cast and crew, but also production sponsors, distribution companies, works of music licensed or written for the work, various legal disclaimers, such as copyright and more.
In television broadcasting a double box is a graphical overlay on the screen with two rectangular "holes" where two separate video sources are inserted. A double box is typically used for two live shots from different locations, with a conversation taking place between the participants; i.e., an interview, or a dialog between a remote reporter and an anchor in the studio.
A news ticker is a horizontal or vertical text-based display either in the form of a graphic that typically resides in the lower third of the screen space on a television station or network or as a long, thin scoreboard-style display seen around the facades of some offices or public buildings dedicated to presenting headlines or minor pieces of news. It is an evolution of the ticker tape, a continuous paper print-out of stock quotes from a printing telegraph which was mainly used in stock exchanges before the advance of technology in the 1960s.
A digital on-screen graphic, digitally originated graphic is a watermark-like station logo that most television broadcasters overlay over a portion of the screen area of their programs to identify the channel. They are thus a form of permanent visual station identification, increasing brand recognition and asserting ownership of the video signal.
Compositing is the process or technique of combining visual elements from separate sources into single images, often to create the illusion that all those elements are parts of the same scene. Live-action shooting for compositing is variously called "chroma key", "blue screen", "green screen" and other names. Today, most, though not all, compositing is achieved through digital image manipulation. Pre-digital compositing techniques, however, go back as far as the trick films of Georges Méliès in the late 19th century, and some are still in use.
A vision mixer is a device used to select between several different live video sources and, in some cases, compositing live video sources together to create visual effects.
A character generator, often abbreviated as CG, is a device or software that produces static or animated text for keying into a video stream. Modern character generators are computer-based, and they can generate graphics as well as text.
Safe area is a term used in television production to describe the areas of the television picture that can be seen on television screens.
Broadcast journalism is the field of news and journals which are broadcast by electronic methods instead of the older methods, such as printed newspapers and posters. It works on radio, television and the World Wide Web. Such media disperse pictures, visual text and sounds.
In films, an intertitle, also known as a title card, is a piece of filmed, printed text edited into the midst of the photographed action at various points. Intertitles used to convey character dialogue are referred to as "dialogue intertitles", and those used to provide related descriptive/narrative material are referred to as "expository intertitles". In modern usage, the terms refer to similar text and logo material inserted at or near the start or end of films and television shows.
Television crew positions are derived from those of film crew, but with several differences.
Mattes are used in photography and special effects filmmaking to combine two or more image elements into a single, final image. Usually, mattes are used to combine a foreground image with a background image. In this case, the matte is the background painting. In film and stage, mattes can be physically huge sections of painted canvas, portraying large scenic expanses of landscapes.
This glossary of terms used in broadcasting is a list of definitions of terms and concepts related to both radio and television broadcasting, along with the industry in general.
The Chyron Corporation, formerly ChyronHego Corporation, headquartered in Melville, New York, is a company that specializes in broadcast graphics creation, playout, and real-time data visualization for live television, news, weather, and sports production. Chyron's graphics offerings include hosted services for graphics creation and order management, on-air graphics systems, channel branding, weather graphics, graphics asset management, clip servers, social media and second screen applications, touchscreen graphics, telestration, virtual graphics, and player tracking.
In television technology, a clean feed is a video signal that does not have added graphics and text. This video signal is used in sport production to allow different television stations to add their own digital on-screen graphic image on a common signal, or in news broadcasting to produce two or more different streams, each one with the same picture but in different languages.
A television production truck or OB van is a small mobile production control room to allow filming of events and video production at locations outside a regular television studio. They are used for remote broadcasts, outside broadcasting (OB), and electronic field production (EFP). Some require a crew of as many as 30 people, with additional trucks for additional equipment as well as a satellite truck, which transmits video back to the studio by sending it up through a communications satellite using a satellite dish, which then transmits it back down to the studio. Alternatively, some production trucks include a satellite transmitter and satellite dish for this purpose in a single truck body to save space, time and cost.
The presentation and the identities of the BBC News channel in the UK alongside its international counterpart and the BBC Parliament coverage channel use specific identities that demonstrate their remit and purpose.
