Filter for data processing

Details Filter for data processing Filter for data processing

1984-12-31

1987-06-16

Goldberg, E. A.

Boots, shoes, and leggings

364726, 382 43, G06F 1542, G06F 1535, G06G 760

Patent

active

046740457

ABSTRACT:
An imaging method and apparatus having a new and improved data filter. In one application of the invention computed tomography number inaccuracies are avoided by use of a new filter function derived from discrete points of a truncated spatial domain convolution filter. The points from the truncated convolution filter are fourier transformed to yield a ramp filter with ripple in the spatial frequency domain. Data from a CT scan is filtered with this new filter function and back projected to produce images that do not exhibit CT number inaccuracies.

REFERENCES:
patent: 4189775 (1980-02-01), Inouye et al.
patent: 4197583 (1980-04-01), Westell et al.
patent: 4205375 (1980-05-01), Inouye et al.
patent: 4219876 (1980-08-01), Mizutani et al.
patent: 4282579 (1981-08-01), Speiser et al.
patent: 4293912 (1981-10-01), Walters
patent: 4326252 (1982-04-01), Kohno et al.
patent: 4333145 (1982-06-01), Heuscher et al.
patent: 4549265 (1985-10-01), Deckers et al.
patent: 4550371 (1985-10-01), Glover et al.

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