Television – Format conversion
Patent
1995-11-22
1998-12-01
Burgess, Glenton B.
Television
Format conversion
348451, 348452, 348457, 348458, H04N 713
Patent
active
058446176
ABSTRACT:
A received 4-2-0 format, 2-1 interlaced digital component video signal is upconverted to a 4-2-2 format, 2-1 interlaced digital component video signal and a vertical chrominance bandwidth expansion enhancement signal is combined with the chrominance components in order to more closely simulate the wider bandwidth vertical chrominance resolution of the original 4:2:2 format signal from which the 4:2:0 format signal was derived. In a first embodiment, the vertical chrominance enhancement signal is derived from vertical transitions in the luminance component of the 4:2:0 format signal. In a second embodiment, the vertical chrominance enhancement signal is derived from vertical transitions in the luminance component of the 4:2:0 format signal when such vertical transitions are present and, in the absence of a luminance transition, the vertical chrominance enhancement signal is derived from the sampling-rate-reduced chrominance components of the 4:2:0 format signal. In all embodiments, the vertical chrominance enhancement signal is a "bandwidth enhancement" signal which simulates a wide bandwidth vertical detail signal. The vertical chrominance detail signal is self-service from the 4:2:0 format video signal itself and requires no auxiliary signal to be transmitted or stored.
REFERENCES:
patent: 2740071 (1956-03-01), Goldmark et al.
patent: 2851522 (1958-09-01), Hollywood
patent: 4030121 (1977-06-01), Faroudja
patent: 4262304 (1981-04-01), Faroudja
patent: 4504853 (1985-03-01), Faroudja
patent: 4531151 (1985-07-01), Hentschke
patent: 4772949 (1988-09-01), Nadan
patent: 4847681 (1989-07-01), Faroudja et al.
patent: 4876596 (1989-10-01), Faroudja
patent: 4967271 (1990-10-01), Cambell et al.
patent: 4982280 (1991-01-01), Lyon et al.
patent: 4989090 (1991-01-01), Campbell et al.
patent: 5014119 (1991-05-01), Faroudja
patent: 5151783 (1992-09-01), Faroudja
patent: 5237414 (1993-08-01), Faroudja
patent: 5400077 (1995-03-01), Cookson et al.
patent: 5428398 (1995-06-01), Faroudja
"High Definition Television Studies on Compatible Basis with Present Standards" B. Wendland; Television Technology in the 80's Feb. 1981 pp. 151-165.
"Picture Enhancement for PAL-coded TV Signals by Digital Processing in TV Receivers," Michael Jacobsen; SMPTE Journal, Feb. 1983, pp. 164-169.
"High-Definition Television and Compatibility with Existing Standards" C.P. Sandbank, M.E.B. Moffat; SMPTE Journal, May 1983 Part 1, pp. 552-561.
"Compatible Systems for High-Quality Television", R.N. Jackson, M.J. Annegarn; SMPTE Journal, Jul. 1983, pp. 719-723.
"Extended Definition Television with High Picture Quality" Broder Wendlund; SMPTE Journal, Oct. 1983, pp. 1028-1035.
"Signal Processing for New HQTV Systems" Broder Wendland, Hartmut Schroder; Television Image Qualty, SMPTE Journal, Scarsdale, 1984, pp. 336-353.
"The Evolution of High-Definition Television" John P. Freeman; SMPTE Journal, May 1984 Part 1, pp. 492-501.
"The Television Scanning Process," G.J. Tonge; SMPTE Journal, Jul. 1984, pp. 657-666.
"On Picture Quality of Some Television Signal Processing Techniques" Broder Wendland, Hartmut Schroder; SMPTE Journal, Oct. 1984, pp. 915-922 (cited in specification).
"Experiments on Proposed Extended-Definition TV with Full NTSC Compatibility" Takahiko Fukinuki, Yasuhiro Hirano, Hiroshi Yoshigi; SMPTE Journal, Oct. 1984, pp. 923-929.
"Scanning Modes for Flicker-Free Colour TV-Reproduction" H. Schroder, M. Silverberg, B. Wendland, G. Huerknamp; IEEE Transactions on Consumer Electronics 1985, pp. 627-641.
"Signal Processing for New HQTV Systems" Broder Wendland, Hartmut Schroder; SMPTE Journal Feb. 1985, pp. 182-189.
"The Kell Factor: Past and Present" Stephen C. Hsu; SMPTE Journal, Feb. 1986, pp. 206-214.
"Improving NTSC to Achieve Near-RGB Performance" Yves Faroudja, Joseph Roizen; SMPTE Journal, Aug. 1987, pp. 750-761.
"A Proposal for a New High-Definition NTS Broadcast Protocol" Richard Iredale; IEEE Transactions on Consumer Electronics, Feb. 1987, pp. 14-27.
"NTSC and Beyond," Yves Faroudja; IEEE Transactions on Consumer Electronics, Feb. 1988, pp. 166-177.
"NTSC Y/C Separation and Enhancement Technique with Two Dimensional Adaptive Features" M. Itoga, H. Itoh, T. Kasezawa, M. Yao; IEEE Transactions on Consumer Electronics, Feb. 1988, pp. 194-204.
"Enhancing Television--An Evolving Scene" John L. E. Baldwin; SMPTE Journal, May 1988, pp. 374-377.
"Improving TV Picture Quality with Linear-Median Type Operations" J. Salo, Y. Neuvo, V. Hameenaho; IEEE Transactions on Consumer Electronics, Aug. 1988 pp. 373-379.
"A Practical IDTV System Improving Picture Quality for Nonstandard TV Signals" Toshiyuki Kurita, I. Arai, N. Nakagaki, T. Murata; IEEE Transactions on Consumer Electronics, Aug. 1988 pp. 387-396.
"Integrated Digital IDTV Receiver with Features" S. Naimpally, et al.; IEEE Transactions on Consumer Electronics, Aug. 1988 pp. 410-419.
"3XNTSC-A `Leapfrog` Production Standard for HDTV" Wayne Bretl; IEEE Transactions on Consumer Electronics Aug. 1988 pp. 484-492.
"System & Technological Details of Terrestrial/Cable NTSC Compatible HDTV" Alan Cavallerano; IEEE Transactions on Consumer Electronics, Aug. 1989 pp. 227-238.
"Comparison Between Median Filtering and Vertical Edge Controlled Interpolation for Flicker Reduction" Dipl. Ing C. Hentschel; IEEE Transactions on Consumer Electronics Aug. 1989 pp. 279-289.
"A Progress Report on Improved NTSC," Yves C. Faroudja, Joseph Roizen; SMPTE Journal, Nov. 1989, pp. 817-822.
"NTSC Image Improvements Using Basic Inter and Intra/Frame Signal Processing" Carl Markhauser; IEEE Transactions on Consumer Electronics, Nov. 1989, pp. 863-871.
System Description SueprNTSC, Faroudja Research Enterprises; Mar. 1990 Section I, II, IV,& V.
"Motion Adaptive Field Rate Upconversion Algorithms for 900 Lines/100 Hz/2:1 Displays" David Gillies, Martin Plantholt, Dietrich Westerknamp; IEEE Transactions on Consumer Electronics, May 1990 pp. 149-160.
"High-Definition Transmission, Signal Processing and Display," William Glenn, Karen Glenn; SMPTE Journal, Jul. 1990, pp. 538-541.
"ATV/NTSC Format Converters" W. Bretl; IEEE Transactions on Consumer Electronics, Aug. 1990 pp. 269-283.
"An Interlaced to Progressive Scan Converter for Improved Pal Systems" A. Biasiolo, G. Cortelazzo, G. Mian; IEEE Transactions on Consumer Electronics, Aug. 1990 pp. 284-290.
"Video Tape Recorder with Digital Television Standards Converter" M. Tomita, T. Ohtsuki, S. Ogata, H. Niwa; IEEE Transactions on Consumer Electronics, Aug. 1990 pp. 572-579.
"Line Rate Upconversion in IDTV Applications" Pasi Pohjala, Matti Karlsson; IEEE Transactions on Consumer Electronics, Aug. 1991 pp. 309-312.
"Multi-Picture System for High Resolution Wide Aspect Ratio Screen" Susumu Tsuchida, Chisato Yoshida; IEEE Transactions on Consumer Electronics, Aug. 1991 pp. 313-319.
"Interlace to Progressive Scan Converter for IDTV" P. Filliman, T. Christopher, R. Keen; IEEE Transactions on Consumer Electronics, Aug. 1992 pp. 135-144.
"A Motion-Adaptive De-Interlacing Method" Soon-kak Kwon, Kang-soo Seo, Jae-kyoon Kim, Yung-gil Kim; IEEE Transactions on Consumer Electronics, Aug. 1992 pp. 145-150.
"Development of Picture Converting System Applying an NTSC Signal to a Wide Aspect Display" Kenji Katsumata, et al.; IEEE Transactions on Consumer Electronics, Aug. 1992 pp. 303-312.
"Muse-525 Progressive Scan Converter" Hiroyuki Nakayama, Yoshiki Mizutani, Hiroshi Yamamoto; IEEE Transactions on Consumer Electronics, Aug. 1992 pp. 313-318.
"A Study of Interpolation Filter for Muse Decoder" N. Itoh et al.; IEEE Transactions on Consumer Electronics, Aug. 1992 pp. 563-569.
"Digital Compatible HDTV Using Upconverted NTSC Video" Paul Snopko, Jong Kim; SMPTE Journal, Mar. 1993, pp. 186-189.
"Scan Conversion Between 1050 2:1 60 HZ and 525 1:1 30 HZ U and V Color Components" Eberhard Fisch; IEEE Transactions on Consumer Electronics, Aug. 1993 pp. 210-218.
"Video Format Conversions Between HDTV Systems" Dong-Ho Lee, Jong-Seok Park, Yung-Gil Kim; IEEE Transactions on Consumer Electronics, Aug. 1993 pp. 219-224.
"A Deinterlacer for IQTV Receivers and Multimedia Application
Faroudja Yves C.
Xu Dong
Burgess Glenton B.
Faroudja Yves C.
Gallagher Thomas A.
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