Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2007-06-05
2007-06-05
Philippe, Gims (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C382S236000
Reexamination Certificate
active
10094043
ABSTRACT:
Different combinations of global motion parameters are estimated for a current frame interpolated to derive local motion vectors for individual image blocks. Image blocks in a reference frame identified by the local motion vectors are compared to the image blocks in the current frame. The estimated global motion parameters that provide the best match between the image blocks in the current frame and the reference frame are selected for encoding the current frame. Selected sub regions of temporally consecutive image frame s can be used in order to release the computational burden for global motion estimation and provide more robust global motion estimation results. A data truncation method can also be used to remove bias caused by foreground moving objects.
REFERENCES:
patent: 5430480 (1995-07-01), Allen et al.
patent: 5473379 (1995-12-01), Horne
patent: 5764803 (1998-06-01), Jacquin et al.
patent: 5844613 (1998-12-01), Chaddha
patent: 5995095 (1999-11-01), Ratakonda
patent: 6008852 (1999-12-01), Nakaya
patent: 6037988 (2000-03-01), Gu et al.
patent: 6178202 (2001-01-01), Nakaya
patent: 6205178 (2001-03-01), Suzuki et al.
patent: 6205260 (2001-03-01), Crinon et al.
patent: 6285711 (2001-09-01), Ratakonda et al.
patent: 6751350 (2004-06-01), Crinon et al.
patent: 2003/0043912 (2003-03-01), Sun et al.
patent: 2003/0174776 (2003-09-01), Shimizu et al.
Demin Wang and Limin Wang, “Global Motion Parameters Estimation Using a Fast and Robust Algorithm”, IEEE Transactions on Circuits and Systems for Video Technology, vol. 7, No. 5, Oct. 1997, pp. 823-826.
Frederic Dufaux and Janusz Konrad, “Efficient, Robust, and Fast Global Motion Estimation for Video Coding”, IEEE Transactions on Image Processing, vol. 9, No. 3, Mar. 2000, pp. 497-501.
Gisle Bjontegaard, “H.26L Test Model Long Term Number 8 (TML-8) draft0”, document VCEG-Nxx, ITU-T Video Coding Experts Group (VCEG) Meeting, Jun. 28, 2001, pp. 1-46.
Gisle Bjontegaard, “Calculation of Average PSNR Differences Between RD-curves”, document VCEG-M33, ITU-T Video Coding Experts Group (VCEG) Meeting, Austin, TX, Apr. 2-4, 2001, pp. 1-4.
Gisle Bjontegaard, “Recommended Simulation Conditions for H.26L”, document VCEG-M75, ITU-T Video Coding Experts Group (VCEG) Meeting, Austin, TX, Apr. 2-4, 2001, pp. 1-2.
“Information Technology—Generic Coding of Audio Visual Objects—Part 2: Visual”, ISO/IEC Copyright 1998, pp. 159-164.
International Telecommunication Union, “Transmission of Non-Telephone Signals—Video Coding for Low Bit Rate Communication”, Jan. 27, 1998, pp. 111-121.
Shijun Sun and Shawmin Lei, “Motion Vector Coding with Global Motion Parameters”, document VCEG-Nx2, ITU-T Video Coding Experts Group (VCEG) Meeting, Sep. 4-7, 2001, pp. 1-10.
Marger & Johnson & McCollom, P.C.
Philippe Gims
Sharp Laboratories of America Inc.
LandOfFree
Method and apparatus for global motion estimation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for global motion estimation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for global motion estimation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3853545