Filter device for decimation and interpolation of chrominance co

Details Filter device for decimation and interpolation of chrominance co Filter device for decimation and interpolation of chrominance co

1991-07-30

1994-06-21

Oberley, Alvin E.

Television

Format

Including pulse modulation of video signal

348571, H04N 1104

Patent

active

053232321

ABSTRACT:
A decimation or interpolation filter is selectively used for decimation or interpolation of pixel data of a chrominance component of a video signal, In general, the chrominance signal and the luminance signal are closely related to each other and their edge pattern data coincide with each other when reproduced on a picture screen. A filter device for decimation or interpolation of the chrominance signal is arranged to perform a number of filtering actions depending on the presence or absence and location of edge pattern data. The present, absence, and location of the edge pattern data is detected using a luminance signal which is neither decimated nor interpolated.

REFERENCES:
patent: 4396937 (1983-08-01), Reitmeier et al.
patent: 4672424 (1987-06-01), Lechner
patent: 5032910 (1991-07-01), Cok
patent: 5047838 (1991-09-01), Murakami et al.

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