Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Reexamination Certificate
2005-08-16
2005-08-16
Miller, John (Department: 2614)
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
C348S447000, C348S448000, C348S452000, C348S910000
Reexamination Certificate
active
06930729
ABSTRACT:
An apparatus and method for processing a video signal, and particularly, an apparatus and method for deleting a sawtooth wave are provided in which a sawtooth wave component is detected and with consideration of direction the sawtooth wave is deleted. The sawtooth wave deleting method includes (a) detecting a sawtooth wave component based on an area dispersion value and motion information in each frame in an input video signal; (b) detecting a direction from the pixels of the detected sawtooth wave component; and (c) deleting the sawtooth wave component by outputting an interpolated pixel in the detected direction. According to the apparatus and method, since interpolation of a sawtooth wave component is performed with consideration of the direction so that the sawtooth wave component is effectively deleted, a much smoother image is provided after deinterlacing.
REFERENCES:
patent: 5625421 (1997-04-01), Faroudja et al.
patent: 6154566 (2000-11-01), Mine et al.
patent: 6421090 (2002-07-01), Jiang et al.
patent: 6577345 (2003-06-01), Lim et al.
patent: 6614484 (2003-09-01), Lim et al.
patent: 6628341 (2003-09-01), Staley et al.
patent: 6731342 (2004-05-01), Shin et al.
Miller John
Samsung Electronics Co. LTD
Tran Trang U.
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