Television – Basic receiver with additional function – Multimode
Reexamination Certificate
2004-12-29
2008-11-11
Lee, M. (Department: 2622)
Television
Basic receiver with additional function
Multimode
Reexamination Certificate
active
07450180
ABSTRACT:
A (50) method and apparatus (110) for determining a scanning format of a frame of a video signal determines (52) if any interfield motion exists within the frame; and indicates (53) that the frame is interlaced scanned if interfield motion is detected and indicates (54) that the frame is progressive scanned if interfield motion is not detected. The determination is based on spatial correlation within and around one or more edges of one or more objects in the frame. This can be accomplished by identifying zig-zag or zipper effects near one or more edges of one or more objects in the frame, identifying motion between fields or identifying motion near one or more edges of one or more objects. A method (100) for determining a field order of two interlaced frames of a video sequence of frames assigns (101) one of the two interlaced frames to be a first frame and the other of the two interlaced frames to be a second frame and assembles (102) two new frames from the two interlaced frames by combining a bottom field of the first frame with the top field of the second frame and by combining a top field of the first frame with a bottom field of the second frame. The number of zipper points in each of the two new frames is then determined and compared. If the number of zipper points in the first frame is smaller than the number of zipper points in the second frame, that the field order of the two frames is top field first, otherwise the field order is bottom field first.
REFERENCES:
patent: 5625421 (1997-04-01), Faroudja et al.
patent: 6201577 (2001-03-01), Swartz
patent: 6348949 (2002-02-01), McVeigh
patent: 6628341 (2003-09-01), Staley et al.
patent: 2002/0163595 (2002-11-01), Adams
patent: 0 673 168 (1995-09-01), None
patent: 10-271361 (1998-10-01), None
Lin, Shyh-Feng et al., “Motion Adaptive De-Interlacing By Horizontal Motion Detection And Enhanced ELA Processing,” Proc. 2003 Intl. Symp. Circuits and Systems, vol. 2, pp. 696-699, May 2003.
Lee, Charng Long et al., “Motion Detection And Motion Adaptive Pro-Scan Conversion,” IEEE Intl. Symp. Circuits Systems, vol. 1, pp. 666-669, Jun. 1991.
Koivunen, Tero, “Motion Detection Of An Interlaced Video Signal,” IEEE Trans. Consumer Electronics, vol. 40, pp. 753-760, Aug. 1994.
Hentschel, Christian, “High Quality Noise Insensitive Motion Detector Using One Field Memory,” IEEE Trans. Consumer Electronics, vol. 42, pp. 696-704, Aug. 1996.
Baylon David M.
McKoen Kevin M.
General Instrument Corporation
Lee M.
Wiener Stewart M.
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