Computer Video Glossary

• artifacts
  Unwanted digital visual distortions that appear in a video image, such as circular color patterns, jitter, blocking, ghosts, etc.
• compositing
  Superimposing multiple layers of video. Each layer may move independently.
• compression
  Reducing the digital data in a video frame by throwing away redundant information. Compression makes it possible to store reasonably large amounts of video on a hard disk.
• digital video effects (DVE)
  Electronic picture modification yielding specialty image patterns and maneuvers: tumbling, strobing, page turning, mosaic, posterization, solarization, etc.
• digitizer
  Device that converts analog video and audio into digital information and imports it onto a computer's hard drive.
• FireWire (IEEE 1394 or i.LINK)
  A high-speed bus that was developed by Apple Computers. It is used, among other things, to connect digital camcorders to computers.
• full-motion video
  A standard for video playback at 60 fields per second; refers to smooth-flowing video, similar to a VCR or television.

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