Image reconstruction process and apparatus using interpolated im

Details Image reconstruction process and apparatus using interpolated im Image reconstruction process and apparatus using interpolated im

1991-11-07

1992-09-15

Couso, Jose

Image analysis

Histogram processing

For setting a threshold

382 6, 382 17, 36441318, 36441319, 378901, G06K 940

Patent

active

051484994

ABSTRACT:
An image reconstruction process and apparatus, for obtaining a two-dimensional enlarged image of high quality, without causing unnecessary increase in the quantity of calculations; wherein data in a frequency space is filtered with a filter having frequency characteristics of an inverse function of an amplitude-transmitting function to be performed thereafter, then image reconstructing the data obtained through the filtering process to provide image reconstruction data; interpolating the image reconstruction data at interior division points of 1:3 and 3:1 of adjacent data; and forming image display by using the interpolated image reconstruction data as the image display data.

REFERENCES:
patent: 4135247 (1979-01-01), Gordon et al.
patent: 4570224 (1986-02-01), Shimoni et al.
patent: 4682291 (1987-07-01), Reuveni
patent: 4740896 (1988-04-01), Horiba et al.
patent: 4841553 (1989-06-01), Nagai
patent: 4979111 (1990-12-01), Nishimura

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