Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2004-06-23
2010-10-05
Rogers, Scott A (Department: 2625)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240160
Reexamination Certificate
active
07809059
ABSTRACT:
A video encoder and corresponding methods are provided for weighted prediction estimation using a displaced frame difference or differential, the encoder embodying a method for receiving a substantially uncompressed image block, assigning a weighting factor for the image block corresponding to a particular reference picture having a corresponding index, computing motion vectors corresponding to the difference between the image block and the particular reference picture, motion compensating the particular reference picture in correspondence with the motion vectors, multiplying the motion compensated reference picture by the assigned weighting factor to form a weighted motion compensated reference picture, subtracting the weighted motion compensated reference picture from the substantially uncompressed image block, and encoding a signal indicative of the difference between the substantially uncompressed image block and the weighted motion compensated reference picture along with the corresponding index of the particular reference picture.
REFERENCES:
patent: 5355378 (1994-10-01), Ohta
patent: 5438374 (1995-08-01), Yan
patent: 5740283 (1998-04-01), Meeker
patent: 7376186 (2008-05-01), Boyce et al.
patent: 7466774 (2008-12-01), Boyce
patent: 7515637 (2009-04-01), Payson
patent: 2004/0008783 (2004-01-01), Boyce
patent: 2005/0129126 (2005-06-01), Jeon
patent: 2008/0225946 (2008-09-01), Yin et al.
patent: 2008/0253456 (2008-10-01), Yin et al.
patent: 2009/0010330 (2009-01-01), Tourapis et al.
patent: 2009/0086816 (2009-04-01), Leontaris et al.
patent: 2009/0168886 (2009-07-01), Ikeda et al.
patent: 2009/0238269 (2009-09-01), Pandit et al.
patent: 2009/0257492 (2009-10-01), Andersson et al.
patent: 2009/0304068 (2009-12-01), Pandit et al.
patent: 2010/0086027 (2010-04-01), Panchal et al.
patent: 0 511 778 (1992-11-01), None
patent: WO 2004/008642 (2004-01-01), None
patent: WO 2004/008761 (2004-01-01), None
patent: WO 2004/008762 (2004-01-01), None
patent: WO 2004/032357 (2004-04-01), None
patent: WO 2004/054225 (2004-06-01), None
Patent Abstract of Japan; “Video Coding Method, Video Coder and Motion Vector Detector”; Patent application No. 11196235; Nov. 4, 2000; Matsushita Electric Ind. Co. Ltd.
Akio Yoneyama, Yosuke Hizume, and Yasuyuki Nakajima; Fast Dissolve Operations for MPEG Video Contents; Proceedings 2000 International Conference on Image Processing; Sep. 10, 2000; vol. 2 and 3; pp. 291-294.
Seung Hwan Kim, Yong Kwan Kim, and Sang-Uk Lee, Adaptive Multiple Reference Frame Based Scalable Video Coding Algorithm; Proceedings 2002 International Conference on Image Processing; Sep. 22, 2002; vol. 2 of 3; pp. 33-36.
Search Report dated Dec. 14, 2004.
Boyce Jill MacDonald
Yin Peng
Eriksen Guy H.
Kiel Paul P.
Rogers Scott A
Shedd Robert D.
Thomson Licensing
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