Helical interpolation for an asymmetric multi-slice scanner

Details Helical interpolation for an asymmetric multi-slice scanner Helical interpolation for an asymmetric multi-slice scanner

2006-06-13

2006-06-13

Bruce, David V. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S901000

Reexamination Certificate

active

07062009

ABSTRACT:
A helical interpolation filter is provided for a multi-slice scanner having an asymmetric detector array. For projection data generated in the symmetric region of the scanner, in which complementary data are available, complementary interpolation is performed. For projection data generated in the asymmetric region of the scanner, in which no complementary data are available, direct interpolation is performed. A blending region is defined near each boundary between the symmetric and the asymmetric regions. In the blending region, a combination of direct and complementary interpolation is performed.

REFERENCES:
patent: 6108575 (2000-08-01), Besson
patent: 6351514 (2002-02-01), Besson
patent: 6415012 (2002-07-01), Taguchi et al.
patent: 6600802 (2003-07-01), Hsieh

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