Computed tomography device

Details Computed tomography device Computed tomography device

1982-02-09

1985-01-22

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

378 4, 364414, A61B 600, G06F 1542

Patent

active

044956452

ABSTRACT:
A computed tomography device comprising a subtraction unit which obtains differential data strings representing the difference between each time-serial projection data string of a group of projection data strings corresponding to a prospective reconstruction image generated by projection data strings acquired by a data acquisition system, a convolution unit which convolves each time-serial projection data string of the group of projection data strings corresponding to the prospective reconstruction image, and a back-projection unit which back-projects the convolved data strings.

REFERENCES:
patent: 4144457 (1979-03-01), Albert
patent: 4293912 (1981-10-01), Walters
patent: 4339799 (1982-07-01), Abele et al.
patent: 4379329 (1983-04-01), LeMay
Holden et al., "Continuous Time-Dependence in Computed Tomography", Medical Physics, vol. 5, No. 6, Nov./Dec. 1978.

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