Video noise floor estimator with impulse noise detection

Details Video noise floor estimator with impulse noise detection Video noise floor estimator with impulse noise detection

2006-11-21

2006-11-21

Yenke, Brian P. (Department: 2622)

Television

Image signal processing circuitry specific to television

Noise or undesired signal reduction

C348S241000, C348S622000, C348S533000, C382S260000, C382S270000

Reexamination Certificate

active

07139035

ABSTRACT:
A method of detecting both linear and non linear noise in video data. Linear noise is detected on a line-by-line basis, by blocks within each line. Non linear noise is detected during horizontal blanking periods. The method provides a noise floor value for linear noise and an impulse noise flag for non linear noise, both of which are delivered to a noise reduction filter.

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