image degradation that occurs each time a movie is saved with a lossy compression codec. Also occurs in each dub with analog video tape.
Sometimes also called Generational loss. It is the loss in signal quality incurred when copying materials. Applies to analog recordings, but not digital, unless the digital recording uses compression and requires decompression and recompression to duplicate the content (such as happens when editing formats that use compression)
Describes the video degradation you get when making copies of copies of analog recordings. This type of loss is not present with digital recording.
Created when editing or copying one analog videotape to another videotape.
When an analog master videotape is duplicated, the second-generation copy is usually inferior in some way to the master. This degradation appears as loss of detail, improper colours, sync loss, etc. Limited frequency response of audio/video magnetic tape and imperfections in electronic circuitry are the main causes of generation loss. Higher performance formats (such as 1-inch) exhibit much less generation loss than more basic formats. Digital formats make generation loss negligible because each copy is essentially an exact duplicate of the original.
Video degradation caused by successive recordings (dubs of other dubs) from the master source. This is overcome by digital recording.
Degradation in picture and sound quality resulting from duplication of original video footage. Each successive generation compounds generation loss.
The quality loss associated with copying an analogue video from tape to tape, similar to photocopying a photocopy. Does not occur with digital video formats.
Degradation that occurs on a dubbed video tape when making analog copies. Each successive generation (copy of a copy) will produce less quality. Higher quality video tape formats incur less generation loss than cheaper formats. Using videotape formats such as DV it is possible to make digital to digital copies which don't incur any generation loss (the copy looks as good as the original).
Degradation in picture and sound quality resulting from an analog duplication of original master video recording. Copying a copy and all successive duplication compounds generation loss. Digital transfers are free of generation loss.
The loss of quality that occurs in any type of analog duplication such as an interneg. Digital images do not have this kind of loss of quality when duplicated.
Generation loss refers to the loss of quality between subsequent copies of data. Anything that reduces the quality of the representation when copying, and would cause further reduction in quality on making a copy of the copy, can be considered a form of generation loss.