Dynamic Noise Reduction for High Quality Colour Video

Paper presented at a symposium on “Colour Imaging Systems” organized by the Imaging Science and Technology Group of The Royal Photographic Society, held in Clare College, Cambridge on 22-26 September 1986.

Abstract

The passage of noise through a composite colour video system is considered. Even when a channel is considered “clean”, the noise from head amplifiers moves from one colour channel to the others via “cross-matricing”. Dynamic noise reduction is possible using selective filtering of low information content signals. Filters which incorporate bandwidth switching are considered, using a one or two step approach. The latter is shown to be a more versatile technique.

Notes

Paper presented at a symposium on “Colour Imaging Systems” organized by the Imaging Science and Technology Group of The Royal Photographic Society, held in Clare College, Cambridge on 22-26 September 1986.