Three-frame technique for analyzing two motions in successive im

Details Three-frame technique for analyzing two motions in successive im Three-frame technique for analyzing two motions in successive im

1990-12-13

1991-11-19

Boudreau, Leo H.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358125, 382 54, 364516, G06K 936

Patent

active

050670140

ABSTRACT:
An iterative process, implemented by a feedback loop, responds to all the image data in the respective analysis regions of three consecutive frames of a motion picture, to provide, after a plurality of cycles of operation thereof, an accurate estimation of the motion of either one or both of two differently moving patterns defined by the image data of these respective analysis regions. The analysis region of each frame is preferably large, and may occupy the entire frame area of a frame. The type of differently moving patterns include (1) separation by a motion bounty, (2) overlapping transparent surface in motion, (3) "picket fence" motion (4) masking of a small and/or low-contrast pattern by a dominant pattern, and (5) two-component aperture effects. Also, the operation of this iterative process inherently accurately estimates the motion of image data defining a single moving pattern.

REFERENCES:
patent: 4685146 (1987-08-01), Fenster et al.
patent: 4847688 (1989-07-01), Nishimura et al.
patent: 4864394 (1989-09-01), Gillard
patent: 4870692 (1989-09-01), Zuiderveld et al.
Burt et al "Object Tracking with a Moving Camera-an Application of Dynamic Motion Analysis" Proceedings of the Workshop on Visual Motion, Irvine, CA Mar. 20-22, 1989, IEEE Computer Society.
Burt et al "A Practical, Real-Time Motion Analysis System for Navigation and Target Tracking", Pattern Recognition for Advanced Missile Systems Conference, Huntsville, AL Nov. 14-15, 1988.

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