Image analysis – Image transformation or preprocessing – Measuring image properties
Patent
1994-05-02
1997-10-21
Couso, Yon J.
Image analysis
Image transformation or preprocessing
Measuring image properties
382103, 382302, G06K 920
Patent
active
056804873
ABSTRACT:
A method and system are provided for determining optical flow between first and second images. First and second multiresolution images are generated (108, 110) from the first and second images, respectively, such that each multiresolution image has a plurality of levels of resolution. A multiresolution optical flow field is initialized (112) at a first one of the resolution levels. At each resolution level higher than the first resolution level, a residual optical flow field is determined (120) at the higher resolution level, and the multiresolution optical flow field is updated (122) by adding the residual optical flow field.
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patent: 5048103 (1991-09-01), Leclerc et al.
"Determining Optical Flow", Artificial Intelligence, 17, (1981) pp. 185-203, by Horn et al.
"The Laplacian Pyramid as a Compact Image Code", IEEE Transactions on Communications, vol. Com-31, No. 4, Apr. 1983 pp. 532-540, by Burt et al.
"Object Tracking with a Moving Camera, An Application of Dynamic Motion Analysis", IEEE, Sep. 1989, pp. 2-12, by Burt et al.
"Constraints for the Computation of Optical Flow", IEEE, 1989, pp. 116-124, by Girosi et al.
"Optical Flow Techniques for Moving Target Detection", SPIE, vol. 1383 Sensor Fusion III: 3-D Perception and Recognition, 1990, pp. 60-71, by Russo et al.
Brady III W. James
Couso Yon J.
Donaldson Richard L.
Swayze, Jr. W. Daniel
Texas Instruments Incorporated
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