Combined scaling, filtering, and scan conversion

Details Combined scaling, filtering, and scan conversion Combined scaling, filtering, and scan conversion

2005-05-02

2008-08-05

Ometz, David (Department: 2622)

Television

Image signal processing circuitry specific to television

Special effects

C348S441000, C348S704000, C348S561000, C348S625000, C348S627000, C382S298000, C345S472000, C345S660000

Reexamination Certificate

active

07408590

ABSTRACT:
Techniques for performing combined scaling, filtering, and/or scan conversion are disclosed that reduce that amount of line buffer space required in the overall design of a video processing system. In particular, coefficients from all or a sub-set of the scaling, filtering (smoothing/sharpening), and scan conversion filters are combined into one representative coefficient that can be applied in a single generic algorithm. Thus, implementation costs are reduced, particularly in system-on-chip implementations.

REFERENCES:
patent: 5384912 (1995-01-01), Ogrinc et al.
patent: 5422827 (1995-06-01), Niehaus
patent: 5587742 (1996-12-01), Hau et al.
patent: 5809182 (1998-09-01), Ward et al.
patent: 6075906 (2000-06-01), Fenwick et al.
patent: 6108047 (2000-08-01), Chen
patent: 6177922 (2001-01-01), Schiefer et al.
patent: 6281873 (2001-08-01), Oakley
patent: 6347154 (2002-02-01), Karanovic et al.
patent: 6563544 (2003-05-01), Vasquez
patent: 6618445 (2003-09-01), Peng et al.
patent: 6661427 (2003-12-01), MacInnis et al.
patent: 6690427 (2004-02-01), Swan
patent: 6724948 (2004-04-01), Lippincott
patent: 6937291 (2005-08-01), Gryskiewicz
patent: 7058237 (2006-06-01), Liu et al.
patent: 7184609 (2007-02-01), Liu et al.
patent: 2001/0046260 (2001-11-01), Molloy
patent: 2003/0007562 (2003-01-01), Kerofsky et al.
patent: 2003/0012276 (2003-01-01), Zhong et al.
patent: 2003/0080981 (2003-05-01), Lin et al.
patent: 2003/0095711 (2003-05-01), McGuinness et al.
patent: 2003/0138045 (2003-07-01), Murdock et al.
patent: 2003/0156650 (2003-08-01), Campisano et al.
patent: 2003/0198399 (2003-10-01), Atkins
patent: 2004/0085233 (2004-05-01), Linzer et al.
patent: 2004/0240559 (2004-12-01), Prakasam et al.
patent: 2004/0260739 (2004-12-01), Schumann
patent: 2004/0263361 (2004-12-01), Pearson et al.
patent: 2005/0001745 (2005-01-01), Sankaran
patent: 2007/0025723 (2007-02-01), Baudisch et al.
“AVC/MPEG High-Definition Decoder”, Broadcom Corporation [online] [Retrieved on Sep. 7, 2005]. Retrieved from the Internet: <URL: http://www.broadcom.com/products/Cable/HDTV-SDTV-Video,-Graphics-%26-Receiver-Chips/BCM7411>, 2 pages.
“BCM7411 Product Brief”, Broadcom Corporation [online] [Retrieved on Dec. 8, 2005] Retrieved from the Internet: <URL: http://www.broadcom.com/collateral/pb/7411-PB05-R.pdf>. 2 pages.
Broadcom Announces High Definition TV Decoder Reference Design Platform.
Featuring H.264 Advanced Video Compression, Broadcom Corporation [online] [Retrieved on Sep. 7, 2005]. Retrieved from the Internet: <URL: http://www.broadcom.com/press/release.php?id=660337. 4 pages.
Burger, Douglas et al., “Memory Systems”, The Computer Science and Engineering Handbook, Ed. Allen B. Tucker, 1997, pp. 447-461, CRC Press, Boca Raton, FL.
“Differential Motion Vectors” [online] [Retrieved on Oct. 14, 2002] Retrieved from the Internet: <URL: http://www.cmlab.csie.ntu.edu.tw/cml/dsp/training/coding/h263/motion.html>. 2 pages.
“Dual Channel AVC HD Reference Platform”, Broadcom Corporation [online] [Retrieved on Dec. 14, 2005] Retrieved from the Internet: <URL: http://www.broadcom.com/collateral/pb/97395-PB00-R.pdf>. 2 pages.
“Dual High-Definition Digital Video System-on-Chip Solution for Cable, Satellite, and DTV”, Broadcom Corporation [online] [Retrieved on Dec. 14, 2005]. Retrieved from the Internet: <URL: http://www.broadcom.com/collateral/pb/7038-PB01-R.pdf>. 2 pages.
“EM8400”, Sigma Designs [online] Jan. 9, 2003 [Retrieved on Dec. 8, 2005] Retrieved from the Internet: <URL: http://www.sigmadesigns.com/pdf—docs/em8400brochure.pdf>. 2 pages.
“EM8470”, Sigma Designs [online] Mar. 20, 2003 [Retrieved on Dec. 8, 2005] Retrieved from the Internet: <URL: http://www.sigmadesigns.com/pdf—docs/em847xbrochure.pdf>. 2 pages.
“EM8485”, Sigma Designs [online] Apr. 30, 2003 [Retrieved on Sep. 7, 2005] Retrieved from the Internet: <URL: http://www.sigmadesigns.com/pdf—docs/EM8485brochure.pdf>. 2 pages.
“EM8500”, Sigma Designs [online] Jan. 16, 2004 [Retrieved on Dec. 8, 2005] Retrieved from the Internet: <URL: http://www.sigmadesigns.com/pdf—docs/em8500—brochure.pdf>. 2 pages.
“EM8610”, Sigma Designs [online] Jan. 13, 2004 [Retrieved on Dec. 8, 2005] Retrieved from the Internet: <URL: http://www.sigmadesigns.com/pdf—docs/em8610—brochure.pdf>. 2 pages.
“EM8610L”, Sigma Designs [online] Aug. 2005 [Retrieved on Dec. 8, 2005] Retrieved from the Internet: <URL: http://www.sigmadesigns.com/pdf—docs/EM8610LSeries—br.pdf>. 2 pages.
“H.264 Advanced Video Coding: A Whirlwind Tour”, PixelTools [online] [Retrieved on Sep. 7, 2005] Retrieved from the Internet: <URL: http://www.pixeltools.com/h264—paper. html>. 8 pages.
“H.264/MPEG-4 Part 10 Advanced Video Coding”, Moonlight Technology [online] [Retrieved on Sep. 7, 2005] Retrieved from the Internet: <URL: http://www.moonlight.co.il/technology/h264/>. 2 pages.
“H.264 Video Decoder for HDTV”, Sci-Worx [online] [Retrieved on Sep. 7, 2005] Retrieved from the Internet: <URL: http://www.sci-worx.com/uploads/media/H264VD.pdf>. 2 pages.
“ITU-T H.264—Series H: Audiovisual and Multimedia Systems Infrastructure of Audiovisual Services—Coding of Moving Video”, International Telecommunication Union, Mar. 2005, pp. xiii-330.
“MPEG-4 AVC/H.264 Video Decoder”, Conexant Systems, Inc. [online] [Retrieved on Dec. 8, 2005] Retrieved from the Internet: <URL: http://www.conexant.com/servlets/DownloadServlet/102551A.pdf?Fileld=1870>. 2 pages.
Schafer, Ralf et al., “The Emerging H.264/AVC Standard”, EBU Technical Review, Jan. 2003, 12 pages.
Tourapis, Alexis M. et al., “Motion Vector Prediction With Reference Frame Consideration”, 8 pages.
“Video DSP”, TechnoWorld, Sony Corporation [online] [Retrieved on Dec. 8, 2005] Retrieved from the Internet: <URL: http://www.sony.net/Products/SC-HP/cx—news/vol13/pdf/tw—dsp.pdf>. 4 pages.
Wiegand, Thomas, “Context-Based Adaptive Coding and the Emerging H.26L Video Compression Standard”, 27 pages, Heinrich Hertz Institute, Berlin, Germany.
Editor, Techweb Network TechEncyclopedia, http://www.techweb.com/encyclopedia/, web encyclopedia article on “chroma subsampling”, Oct. 22, 2007, The Computer Language Company.

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