Boots – shoes – and leggings
Patent
1986-04-21
1988-09-06
Smith, Jerry
Boots, shoes, and leggings
378901, G06F 1542
Patent
active
047697571
ABSTRACT:
A CT scanner including a scanning device including (a) device for rotating an x-ray source around an object to be examined, the x-ray source radiating x-rays, while the x-ray source is being rotated, in the form of fan beams covering a region of the object to be examined, and (b) a multielement x-ray detector for detecting x-ray fan beams transmitted through the object to thus collect data around the irradiated object; an arithmetic device for arithmetically reconstructing the distribution of the x-ray absorption coefficients of the object across a measured cross-section from the data; and a display for displaying the distribution where the arithmetic device includes a device for producing data equivalent to data derived from parallel beams not regularly spaced apart from each other from the collected data around the irradiated object, a device for subjecting the produced data to filtering, and a device for correcting inhomogeneity in the data equivalent to data derived from parallel beams not regularly spaced and for back-projecting the image of the distribution.
REFERENCES:
patent: Re30947 (1982-05-01), Boyd
patent: 4266136 (1981-05-01), Duinker
patent: 4570224 (1986-02-01), Shimoni et al.
patent: 4682291 (1987-07-01), Reuveni
Horiba Isao
Nishimura Hiroshi
Takeuchi Hiroyuki
Ferguson Jr. Gerald J.
Hitachi Medical Corporation
Smith Jerry
Tbui Kimthanh
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