Fast and efficient multiprocessor implementation for exact for a

Details Fast and efficient multiprocessor implementation for exact for a Fast and efficient multiprocessor implementation for exact for a

1998-06-30

1999-10-19

Bruce, David Vernon

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378901, A61B 603

Patent

active

059701110

ABSTRACT:
A computed tomographic imaging apparatus performs three-dimensional (3D) image reconstruction of a region of interest of an object using a plurality of processors for processing successive sets of cone beam measurement data that are acquired by scanning about the object with a cone beam radiation source and an area detector. A central memory has stored therein a plurality of subsets of pre-calculated image processing information, and the plurality of processors are responsive to a given sequence of successive ones of the subsets of pre-calculated image processing information for converting the cone beam measurement data to Radon derivative data on a plurality of Radon .phi.-planes. In a preferred embodiment each of the processors has a first input coupled for receiving in a broadcast manner the successive sets of cone beam measurement data, and a second input coupled for receiving the subsets of pre-calculated image processing information in a given sequence so that each one of the plurality of processors converts the cone beam measurement data broadcast to its second input into Radon derivative data for a respective subset of the Radon .phi.-planes.

REFERENCES:
patent: 5333164 (1994-07-01), Tam
patent: 5500883 (1996-03-01), Hsiao et al.
patent: 5559846 (1996-09-01), Tam
patent: 5566341 (1996-10-01), Roberson et al.
patent: 5862198 (1999-01-01), Samarasekera et al.

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