发明名称 |
Gesteuertes Ringentfernungs-Rechenverfahren für eine Bildrekonstruktion |
摘要 |
A present invention, in one form, is a method for removing artifacts from image data due to detector degradation. Particularly, data is obtained from a CT system including a detector and an x-ray source. The detector is formed from a plurality of detector cells. In accordance with one form of the invention, a detector degradation signature (S(i)) vector is generated prior to scanning a patient. Subsequent to scanning the patient, if the image data contains a ring error, a detector cell contributing to the error is identified using the detector degradation signature vector. The system then determines if the cell a degraded cell. If such cell is a degraded cell, ring error correction processing is then performed on the image data. |
申请公布号 |
DE19546378(A1) |
申请公布日期 |
1996.07.18 |
申请号 |
DE1995146378 |
申请日期 |
1995.12.12 |
申请人 |
GENERAL ELECTRIC CO., SCHENECTADY, N.Y., US |
发明人 |
HSIEH, JIANG, WAUKESHA, WIS., US |
分类号 |
A61B6/03;G01N23/04;(IPC1-7):G06T5/00 |
主分类号 |
A61B6/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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