Television – Image signal processing circuitry specific to television – Motion dependent key signal generation or scene change...
Reexamination Certificate
2005-12-20
2011-10-18
Jerabek, Kelly L (Department: 2622)
Television
Image signal processing circuitry specific to television
Motion dependent key signal generation or scene change...
C348S607000, C348S620000, C348S622000
Reexamination Certificate
active
08040437
ABSTRACT:
A method and system for analog video noise detection are provided. A motion metric (MM) value may be determined for pixels in a video image. The MM values may be collected and accumulated for a number of noise level intervals to determine average noise levels for each interval. An early-exit algorithm (EEA) or an interpolation estimate algorithm (IEA) may be utilized to determine the noise level. The EEA may select the noise level based on a first noise level interval with a number of collected samples larger than a threshold. The IEA may determine the noise level based on an average of a plurality of noise levels associated with consecutive noise level intervals with collected samples that are larger than the threshold. A noise level indicator (NLI) may be the noise level of the current image or an average based on noise levels from the current and previous images.
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Broadcom Corporation
Jerabek Kelly L
McAndrews Held & Malloy Ltd.
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