公开(公告)号：US5644610A

公开(公告)日：1997-07-01

申请号：US690810

申请日：1996-08-01

申请人： Carl R. Crawford ,  Christopher C. Ruth ,  Iouri Bachilov ,  Ruvin Deych

发明人： Carl R. Crawford ,  Christopher C. Ruth ,  Iouri Bachilov ,  Ruvin Deych

IPC分类号： G06T11/00 ,  A61B6/03

CPC分类号： G06T11/005 ,  Y10S378/901

摘要： The disclosed CT scanner includes a tomography system for generating data during a scan. The tomography system includes a detector characterized by at least one afterglow amplitude and at least one afterglow time constant, and a sampling device for generating a plurality of samples x.sub.i 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 x.sub.i, each of the sub-processors being represented by a unique integer q selected from zero to N minus one and receiving only the samples X.sub.iN+q. Each sub-processor 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.

摘要翻译： 所公开的CT扫描仪包括用于在扫描期间产生数据的断层摄影系统。 该断层摄影系统包括一个检测器，其特征在于至少有一个余辉振幅和至少一个余辉时间常数，以及采样装置，用于产生从0到MAX减去检测器输出信号之一的所有i的多个采样xi。 扫描器还包括用于处理样本xi的一组N个子处理器，每个子处理器由从零到N减去一个并且仅接收样本XiN + q的独特整数q表示。 每个子处理器包括用于根据所接收的采样的至少一部分的功能和表示余辉振幅和余辉时间常数的参数产生补偿信号的装置。