Boots – shoes – and leggings
Patent
1977-12-12
1981-01-06
Birmiel, Howard A.
Boots, shoes, and leggings
364515, 3401463Q, G06F 15336, G06K 962
Patent
active
042440297
ABSTRACT:
A digital video correlator wherein a reference image and a live image are digitized and compared against each other in a shifting network to determine the correlation or degrees thereof existing between the two images. Fundamentally, the invention includes a video digitizer which divides live and real images from various sources into picture elements and digitizes those elements to fixed voltage levels. The digitized live image is passed to a dynamic memory consisting of a plurality of interconnected shift registers while the digitized reference image is maintained within a first set of shift registers comprising a portion of a processor. A second set of shift registers within the processor maintain therein a mask function. Yet a third set of shift registers within the processor are interconnected in parallel to the dynamic memory to receive, under control of a clock, the digitized data of the live image. As the live image data is shifted through the third set of shift registers, single-bit correlators interconnecting corresponding bits of each of the first, second, and third sets of shift registers, compare the digitized values of the corresponding bits, with such comparison being enabled or negated by the mask function. The outputs of all the single-bit correlators are summed together with that sum indicating the degree of correlation, on a bit-by-bit basis, between the live and reference images. Further circuitry is included to determine the point of best correlation between the two images and to normalize or take the mean value of the correlation output.
REFERENCES:
patent: 3492646 (1970-01-01), Bene et al.
patent: 3576534 (1971-04-01), Steinberger
patent: 3670151 (1972-06-01), Lindsay et al.
patent: 3706071 (1972-12-01), Gray
patent: 3725689 (1973-04-01), Kautz
patent: 3831013 (1974-08-01), Alsup et al.
patent: 3878509 (1975-04-01), Kikuchi et al.
patent: 3900721 (1975-08-01), Speiser et al.
patent: 3952299 (1976-04-01), Hodge et al.
patent: 3976982 (1976-08-01), Eiselen
patent: 4162481 (1979-07-01), DuVall
Habibi et al., "A Survey of Digital Picture Coding," Computer, May 1974, pp. 22-34.
Barnea et al., "A Class of Algorithms for Fast Digital Image Registration," IEEE Transactions on Computers, vol. C-21, No. 2, Feb. 1972, pp. 179-186.
Hogan James J.
Lambert Charles O.
Wallace Gene A.
Birmiel Howard A.
Goodyear Aerospace Corporation
Milliken P. E.
Oldham E. W.
Weber R. L.
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