Separable diamond shaped multidimensional filters for composite

Details Separable diamond shaped multidimensional filters for composite Separable diamond shaped multidimensional filters for composite

1990-10-15

1992-09-22

Coles, Sr., Edward L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 23, H04N 978

Patent

active

051502020

ABSTRACT:
Various 2D and 3D diamond shaped filters for encoding and decoding NTSC, PAL and ATV signals are presented. The particularity of the proposed system is its separability: the desired filter configurations are composed of multiple simple 1D filters operating individually in their own zero or oblique frequency axis. In comparison with existing diamond shaped filters the proposed systems offer substantial advantages, low complexity and better performance along the zero axes (horizontal, vertical and temporal) in the frequency domain.

REFERENCES:
patent: 4240105 (1980-12-01), Faroudja
patent: 4345268 (1982-08-01), Clarke
patent: 4500912 (1985-02-01), Bolger
patent: 4670773 (1987-02-01), Silverberg
patent: 4683490 (1987-07-01), Strolle et al.
patent: 4829367 (1989-05-01), Dubois et al.
Three-dimensional pre-and post-filtering for PAL TV signals, Detlef Teichner, IEEE 1988, pp. 205-227.

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