Method of converting 4:2:0p/4:2:2p progressive scan data and con

Details Method of converting 4:2:0p/4:2:2p progressive scan data and con Method of converting 4:2:0p/4:2:2p progressive scan data and con

1997-01-22

1998-11-10

Powell, Mark R.

Television

Format conversion

Specified chrominance processing

348456, 348446, H04N 122, H04N 701, H04N 1120

Patent

active

058351523

ABSTRACT:
A method for converting 4:2:0p serial data containing a first line multiplexing luminance data and color difference data and a second line multiplexing only luminance data in pairs into 4:2:2 interlaced data comprising steps of: demultiplexing 4:2:0p data into luminance data and color difference data at a predetermined horizontal picture element position on a first line; demultiplexing 4:2:0p data into luminance data at the predetermined horizontal picture element position on a second line; obtaining an arithmetic mean value of the demultiplexed luminance data on a first line and the demultiplexed luminance data on a second line; and generating 4:2:2 interlaced data at the predetermined horizontal picture element position by multiplexing the obtained arithmetic mean value as luminance data and the demultiplexed color difference data in pairs.

REFERENCES:
patent: 4335393 (1982-06-01), Pearson
patent: 5268751 (1993-12-01), Geiger et al.
patent: 5457498 (1995-10-01), Hori et al.
patent: 5677981 (1997-10-01), Kato et al.
"Proposed SMPTE Standard for Television--720 .times.483 Active Line at 59.94-Hz Progressive Scan Production--Bit-Serial Interfaces", SMPTE Journal, published by the Society of Motion Picture and Television Engineers, Inc., vol. 105, No. 4, Apr. 1996, SMPTE 294M, pp. 263-268.

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