Translate rotate scanning method for x-ray imaging

Details Translate rotate scanning method for x-ray imaging Translate rotate scanning method for x-ray imaging

1989-05-30

1991-07-16

Fleming, Michael R.

Boots, shoes, and leggings

36441313, 36441314, 36441319, 378 4, 378901, G06F 1500, A61B 600

Patent

active

050329901

ABSTRACT:
Rapid x-ray inspection of objects larger than an x-ray detector array is based on a translate rotate scanning motion of the object relative to the fan beam source and detector. The scan for computerized tomography imaging is accomplished by rotating the object through 360 degrees at two or more positions relative to the source and detector array; in moving to another position the object is rotated and the object or source and detector are translated. A partial set of x-ray data is acquired at every position which are combined to obtain a full data set for complete image reconstruction. X-ray data for digital radiography imaging is acquired by scanning the object vertically at a first position at one view angle, rotating and translating the object relative to the source and detector to a second position, scanning vertically, and so on to cover the object field of view, and combining the partial data sets.

REFERENCES:
patent: 4630202 (1989-12-01), Mori
patent: 4803639 (1989-02-01), Steele et al.
patent: 4888693 (1989-12-01), Tam
patent: 4894775 (1990-01-01), Kritchman et al.
patent: 4907157 (1990-03-01), Uyama et al.
K. C. Tam, "Reducing the Fan-Beam Scanning Angular Range" Phys. Med. Biol., 1988, vol. 33, No. 8, 955-967.

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