Image analysis – Applications – Motion or velocity measuring
Patent
1997-01-27
1999-07-27
Boudreau, Leo H.
Image analysis
Applications
Motion or velocity measuring
382205, G06K 900
Patent
active
059303786
ABSTRACT:
In a dynamic image processing apparatus of the present invention, the focus of contraction of the optical flow of the background in the dynamic image is extracted. When a series of dynamic images are inputted, an optical flow extraction section extracts an optical flow representing motion vector of each block between two neighboring dynamic images. A Hough transform section votes each optical flow of the dynamic image to vote space by unit of block. The vote space comprises two planes and one circle positioned in parallel to each other. The dynamic image is included in one plane. The other plane is positioned symmetrically to the one plane with respect to a center position of the circle. The Hough transform section selects a block whose voted value is maximum in all blocks of the vote space. The selected block corresponds to the focus of contraction of the optical flow of background in the dynamic image.
REFERENCES:
patent: 4638445 (1987-01-01), Mattaboni
patent: 4731860 (1988-03-01), Wahl
patent: 5063603 (1991-11-01), Burt
patent: 5220615 (1993-06-01), Ishii et al.
patent: 5430810 (1995-07-01), Saeki
patent: 5548667 (1996-08-01), Tu
patent: 5581276 (1996-12-01), Cipolla et al.
patent: 5638116 (1997-06-01), Shimoura et al.
patent: 5644386 (1997-07-01), Jenkins et al.
E. Lutton et al., "Contribution to the Determination of Vanishing Points Using Hough Transform", IEEE Transactions on Pattern Analysis and Machine Intelligence, 16(4):430-438 (1994).
J. Heikkonen, "Recovering 3-D Motion Parameters From Optical Flow Field Using Randomized Hough Transform", Pattern Recognition Letters, 16 pp. 971-978 (1995).
T. Tian et al., "Recovering 3D Motion of Multiple Objects Using Adaptive Hough Transform", IEEE, pp. 284-289 (1995).
"Probability Distributions of Optical Flow", Eero P. Simoncelli et al., IEEE, 1991, pp. 310-315.
Kaneko Toshimitsu
Kubota Susumu
Boudreau Leo H.
Kabushiki Kaisha Toshiba
Mehta Bhavesh
LandOfFree
Dynamic image processing apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dynamic image processing apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic image processing apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-888646