Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Reexamination Certificate
2006-11-28
2006-11-28
Hsia, Sherrie (Department: 2622)
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
C348S607000
Reexamination Certificate
active
07142253
ABSTRACT:
The invention relates to a method for processing data of video pictures for displaying the pictures on a display device like a Plasma Display Panel. The existing false contour effect compensation methods which make a false contour compensation based on shifting sub-field code word entries along the direction of the motion vector of a current pixel, produce an artifact in the pictures, in case of object crossings. In the appearing area there is a lack of light generation.The invention solves this problem by checking whether an area exists in the picture which is currently hidden but will appear in a next frame and providing an adapted compensation method for “hole filling”. The invention also gives a solution for an improved compensation method which is based on a dragging of sub-field code word entries along a motion vector direction to a current pixel.
REFERENCES:
patent: 6476875 (2002-11-01), Correa et al.
patent: 6961379 (2005-11-01), Weitbruch et al.
patent: 978 817 (2000-02-01), None
patent: 980 059 (2000-02-01), None
Showbhik Kalra and Man-Nang Chong,Bidirectional Motion Estimation via Vector Propagation, IEEE Transactions on Circuits and Systems for Video Technology, vol. 8, No. 8, Dec. 1998.
Search Report *.
Correa Carlos
Weitbruch Sébastien
Zwing Rainer
Hsia Sherrie
Laks Joseph J.
Levy Robert B.
Thomson Licensing
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