Image analysis – Image compression or coding – Interframe coding
Reexamination Certificate
2006-08-29
2006-08-29
Alavi, Amir (Department: 2624)
Image analysis
Image compression or coding
Interframe coding
Reexamination Certificate
active
07099512
ABSTRACT:
A process for realizing an estimate of global motion based on a sequence of subsequent video images, such as those received via an optical mouse (M) for the purposes of detecting its movement. Subsequent video images are represented by digital signals arranged in frames and for each estimate of a frame with respect to another, the procedure provides operations for choosing, from amongst a series of vectors originating from linear combinations of motion vectors resulting from estimates of previous frames and/or constant vectors, a vector considered as the best match for estimating the motion occurring between the two frames, the said selection operation in turn including the operations of performing a virtual overlay of the two frames to be compared (T0, T0−1) mutually offset both horizontally and vertically by amounts identified by the motion vector subjected to testing, applying a selective grid of pixels to be subjected to testing, and calculating, for all pixels selected via the grid, a cost function to determine the effectiveness of the predictor, identifying the vector with the lowest cost function value as the best for the purposes of estimation.
REFERENCES:
patent: 5398068 (1995-03-01), Liu et al.
patent: 5510834 (1996-04-01), Weiss et al.
patent: 6014181 (2000-01-01), Sun
patent: 6205178 (2001-03-01), Suzuki et al.
patent: 6385245 (2002-05-01), De Haan et al.
patent: 6418166 (2002-07-01), Wu et al.
patent: 6614847 (2003-09-01), Das et al.
patent: 6707853 (2004-03-01), Cook et al.
patent: 6760478 (2004-07-01), Adiletta et al.
patent: 6925121 (2005-08-01), Komiya et al.
patent: 2003/0072373 (2003-04-01), Sun
patent: 19712785 (1998-07-01), None
patent: 0 917 363 (1997-11-01), None
patent: 0 944 245 (1998-03-01), None
patent: 1094671 (2001-04-01), None
patent: 2 604 049 (1988-03-01), None
patent: WO 99/16251 (1999-04-01), None
patent: WO 00/70879 (1999-05-01), None
E. Dubois, et al., “Motion Estimation and Motion-Compensated Filtering of Video Signals”, Proceedings of the International Conference on Acoustics, Speech and Signal Processing (ICASSP), New York, IEEE 0-7803-0946-4/93, US, vol. 4, pp. I-95-98.
Gardella Pierluigi
Rovati Fabrizio
Alavi Amir
Hogan & Hartson L.L.P.
STMicroelectronics S.R.L.
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