CT System which convolutes projection data with a frequency vary

Details CT System which convolutes projection data with a frequency vary CT System which convolutes projection data with a frequency vary

1985-08-21

1988-03-01

Smith, Jerry

Boots, shoes, and leggings

G06F 1542, A61B 603

Patent

active

047291001

ABSTRACT:
X-rays are projected from different directions onto a specific slice of an object to be examined, and corresponding projection data is acquired. The projection data is divided into regions in accordance with the data characteristics. The regions are convoluted by corresponding filter functions having different frequency characteristics and are combined to obtain back-projection data, thereby reconstructing an image for the slice.

REFERENCES:
patent: 4326252 (1982-04-01), Kohno et al.
patent: 4333145 (1982-06-01), Heuscher et al.
patent: 4499493 (1985-02-01), Nishimura
patent: 4503461 (1985-03-01), Nishimura
patent: 4555760 (1985-11-01), Op de Beek et al.

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