Title:
【発明の名称】コンピュータ・トモグラフィのスキャナで使うためのマルチプロセッサによる残光アーティファクトの補正フィルタ
Document Type and Number:
Japanese Patent JP2000505347
Kind Code:
A
Abstract:
The disclosed CT scanner includes a tomography system for generating data during a scan. The tomography system includes a detector (14) characterized by at least one afterglow amplitude and at least one afterglow time constant, and a sampling device (318) for generating a plurality of samples xi for all i from zero to MAX minus one of the detector output signal. The scanner also includes a set of N sub-processors for processing the samples xi, each of the sub-processors (5220, 5221, 522a) being represented by a unique integer q selected from zero to N minus one and receiving only the samples xiN+q. Each sub-processor (5220, 5221, 522a) includes a device for generating a compensated signal according to a function of at least a portion of the received samples and parameters representative of the afterglow amplitude and the afterglow time constant.
Inventors:
Crawford, Carl Earl.
Ruth, Christopher See.
Batirov, Iori
Rubin, Dich
Ruth, Christopher See.
Batirov, Iori
Rubin, Dich
Application Number:
JP50292998A
Publication Date:
May 09, 2000
Filing Date:
April 15, 1997
Export Citation:
Assignee:
Analogic Corporation
International Classes:
G06F15/16; A61B6/03; G06T11/00; (IPC1-7): A61B6/03
Attorney, Agent or Firm:
Masao Okabe (13 others)