Title:
MOTION ESTIMATION TECHNIQUES FOR VIDEO ENCODING
Document Type and Number:
WIPO Patent Application WO2006063191
Kind Code:
A3
Abstract:
This disclosure describes video encoding techniques and video encoding devices that implement such techniques. In one embodiment, this disclosure describes a video encoding device comprising a motion estimator that computes a motion vector predictor based on motion vectors previously calculated for video blocks in proximity to a current video block to be encoded, and uses the motion vector predictor in searching for a prediction video block used to encode the current video block, and a motion compensator that generates a difference block indicative of differences between the current video block to be encoded and the prediction video block.
Inventors:
MANJUNATH SHARATH (US)
LI HSIANG-TSUN (US)
MALAYATH NARENDRANATH (US)
LI HSIANG-TSUN (US)
MALAYATH NARENDRANATH (US)
Application Number:
PCT/US2005/044525
Publication Date:
September 14, 2006
Filing Date:
December 07, 2005
Export Citation:
Assignee:
QUALCOMM INC (US)
MANJUNATH SHARATH (US)
LI HSIANG-TSUN (US)
MALAYATH NARENDRANATH (US)
MANJUNATH SHARATH (US)
LI HSIANG-TSUN (US)
MALAYATH NARENDRANATH (US)
International Classes:
H04N7/36; H04N7/26
Domestic Patent References:
| WO2001099437A2 | 2001-12-27 |
Foreign References:
| US20030231712A1 | 2003-12-18 |
Other References:
KOSSENTINI F ET AL: "PREDICTIVE RD OPTIMIZED MOTION ESTIMATION FOR VERY LOW BIT-RATE CODING", IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 15, no. 9, December 1997 (1997-12-01), pages 1752 - 1763, XP000726013, ISSN: 0733-8716
WIEGAND T ET AL: "LONG-TERM MEMORY MOTION-COMPENSATED PREDICTION", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 9, no. 1, February 1999 (1999-02-01), pages 70 - 84, XP000802288, ISSN: 1051-8215
COBAN M Z ET AL: "Fast rate-constrained N-step search algorithm for motion estimation", ACOUSTICS, SPEECH AND SIGNAL PROCESSING, 1998. PROCEEDINGS OF THE 1998 IEEE INTERNATIONAL CONFERENCE ON SEATTLE, WA, USA 12-15 MAY 1998, NEW YORK, NY, USA,IEEE, US, 12 May 1998 (1998-05-12), pages 2613 - 2616, XP010279399, ISBN: 0-7803-4428-6
YANG Y ET AL: "RATE-DISTORTION-BASED COMBINED MOTION ESTIMATION AND SEGMENTATION", IEEE TRANSACTIONS ON IMAGE PROCESSING, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 3, no. 3, 1998, pages 920 - 924, XP000914388, ISSN: 1057-7149
WIEGAND T ET AL: "LONG-TERM MEMORY MOTION-COMPENSATED PREDICTION", IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 9, no. 1, February 1999 (1999-02-01), pages 70 - 84, XP000802288, ISSN: 1051-8215
COBAN M Z ET AL: "Fast rate-constrained N-step search algorithm for motion estimation", ACOUSTICS, SPEECH AND SIGNAL PROCESSING, 1998. PROCEEDINGS OF THE 1998 IEEE INTERNATIONAL CONFERENCE ON SEATTLE, WA, USA 12-15 MAY 1998, NEW YORK, NY, USA,IEEE, US, 12 May 1998 (1998-05-12), pages 2613 - 2616, XP010279399, ISBN: 0-7803-4428-6
YANG Y ET AL: "RATE-DISTORTION-BASED COMBINED MOTION ESTIMATION AND SEGMENTATION", IEEE TRANSACTIONS ON IMAGE PROCESSING, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 3, no. 3, 1998, pages 920 - 924, XP000914388, ISSN: 1057-7149
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