Method and system for time constant for a 3D comb filter

Details Method and system for time constant for a 3D comb filter Method and system for time constant for a 3D comb filter

2008-03-04

2008-03-04

Lee, M. (Department: 2622)

Television

Image signal processing circuitry specific to television

Chrominance-luminance signal separation

C348S667000

Reexamination Certificate

active

10943587

ABSTRACT:
Methods and systems for time constant for a 3D comb filter of a video signal are provided. Aspects of the method may include assigning a weight to a 3D comb mesh value. Combing may be blended according to the assigned weight of the 3D comb mesh value. The weighted 3D comb mesh value may be accumulated in order to generate accumulated mesh value. If the accumulated mesh value exceeds a saturation value, the accumulated mesh value may be reduced to the saturation value. If the 3D comb mesh value is smaller than a first threshold value, the accumulated mesh value may be reset to zero. A multiplier may be generated according to the accumulated mesh value. If the accumulated mesh value is between a second threshold value and a third threshold value, the multiplier may be blended.

REFERENCES:
patent: 5006927 (1991-04-01), Creed et al.
patent: 5990978 (1999-11-01), Kim et al.
patent: 6674488 (2004-01-01), Satoh
patent: 6774954 (2004-08-01), Lee

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