Method and system for cross-chrominance removal using motion...

Details Method and system for cross-chrominance removal using motion... Method and system for cross-chrominance removal using motion...

2004-09-21

2008-07-08

Natnael, Paulos M (Department: 2622)

Television

Image signal processing circuitry specific to television

Noise or undesired signal reduction

Reexamination Certificate

active

07397515

ABSTRACT:
In a video system, a method and system for cross-chrominance removal using motion detection are provided. A luma motion detector in a motion adaptive deinterlacer may be used to determine a chroma current motion for a pixel in a video frame. The chroma current motion may be modified, based on a chroma motion mechanism comprising of an edge detection, a back-off, and a motion biasing, when the output pixel is found to be in a static chroma area of the video frame. A static chroma threshold parameter may be used to determine whether the output pixel is in a static chroma area. A cross-chroma reduction determined based on the current chroma motion, may be blended in the motion adaptive deinterlacer with a spatial average approximation of the output pixel to remove the cross-chrominance from the output chroma.

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patent: 5424784 (1995-06-01), Raby
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patent: 2003/0206587 (2003-11-01), Gomila

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