International Communication Industry Association. Official Audio & Video industry association (NAVA issued) TV.
International Electrotechnical Committee. Standard AC power cable and connector used to power scan converters, interfaces, projectors and most electronic equipments.
Institute of Electrical & Electronics Engineers.
Image noise is the random variation of brightness or color information in images produced by the sensor and circuitry of a scanner or digital camera.
Load signal, measured in Ohms. The impedance of a video signal is 75 Ohms (low impedance) and it has to be matched to the cable impedance to avoid echo on the picture.
Device or program that creates a link between 2 different products or protocols. In Video, the interface usually adapts the computer unit (CPU) to different displays. It acts only on the synchronization but not on the scanning rate (see Scan Converter). Powerful interfaces are fully automatic and with no Dip Switches.
Method of line interleaving that scans the image into 2 fields (1 image = 1 frame = 2 fields). TV video standards (PAL, SECAM, NTSC) use the interlaced method. PAL/SECAM is equivalent to 625 lines per frame which is equivalent to 2 x {312.5 lines per field}. NTSC is equivalent to 525 lines per frame which is equivalent to 2 x {262.5 lines per field}. However, computer sources usually use Non Interlaced or Progressive scanning methods (1 image = 1 frame = 1 field).
Internet Protocol (also Intellectual Property).
The unique identifier given to a device to allow communication on a network.
International Standard Organization.
International Telecommunication Union. Committee that sets Digital Broadcast Video Standards (successor to CCIR).
Coaxial type connector (6.35 mm or 3.5 mm) usually used in Music and Audio equipment.
"Jaggies" is the informal name for artifacts , most frequently from aliasing which in turn is often caused by non-linear mixing effects producing high-frequency components and/or missing or poor anti-aliasing filtering prior to sampling.
Short cycle problem that can be described by a fast up/down or left/right movement on the picture (it could also be a short cycle problem such as a frequency jitter).
Joint Photographic Experts Group. Process for compressing still images (ie: Jpeg 2000).
Video Information that provides a "KEY" to overlay and mix 2 Video images.
In key effects, the video signal fills the hole cut in the background video by the key source.
Distorted image when projected onto the screen at a high vertical angle. Some Up/down converters and projectors incorporate a powerful keystone corrector function.
Symbol:kHz. Equivalent to 1000 Hertz (10^3 Hertz).