Image analysis – Histogram processing – For setting a threshold
Patent
1988-01-20
1991-03-05
Moore, David K.
Image analysis
Histogram processing
For setting a threshold
382 17, 382 42, G06K 968
Patent
active
049982869
ABSTRACT:
A correlation operational apparatus for multi-dimensional images includes: means for reducing at least two-dimensional components of the multi-dimensional images composed of at least two components by at least one component by projecting a vector representing the image onto a space perpendicular to a vector representing a large variance of distribution of the multi-dimensional image in a vector space whose orthogonal axes represent the individual dimensional component values of the multi-dimensional image; and means for performing a correlation operation for each component on the multi-dimensional images whose dimensional components have been reduced by at least one. In consequence, images having a relatively high number of high spatial frequency components and whose components have been reduced by at least one are extracted, and a correlation operation is performed thereon.
REFERENCES:
patent: 3816722 (1974-06-01), Sakoe et al.
patent: 3952299 (1976-04-01), Hodge et al.
patent: 3984671 (1976-10-01), Fletcher et al.
patent: 4446531 (1984-05-01), Tanaka
patent: 4545025 (1985-10-01), Hepner et al.
Badique Eric
Honda Toshio
Kikuchi Susumu
Komiya Yasuhiro
Ohyama Nagaaki
Couso Jose L.
Moore David K.
Olympus Optical Co,. Ltd.
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