Efficient image reconstruction algorithm for the circle and...

X-ray or gamma ray systems or devices – Specific application – Computerized tomography

Reexamination Certificate

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C378S901000

Reexamination Certificate

active

11037968

ABSTRACT:
Methods, systems and processes for providing efficient, accurate and exact image reconstruction using portable and easy to use C-arm scanning devices and rotating gantries, and the like, that combines both a circle and a curve scan. The invention can provide exact convolution-based filtered back projection (FBP) image reconstruction by combining two curved scans of the object. The curved scan can be less than or greater than a full circle about an object being scanned. The invention can be done by a first curve within a first plane followed by a second curve within a second plane that is transversal to the first plane.

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“Fast and Stable Cone-Beam Filtered Backprojection method for non-planar orbits.” Hiroyuki Kudo and Tsuneo Saito Phys. Med. Biol. 43 (1998) pp. 747-760.

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