发明名称 Method and arrangement for compensating motion artifacts in computed tomography
摘要 Artifacts may be produced when a body moves relative to a CT scanner during measurement. Such artifacts are avoided by shifting the measuring values relative to their coordinates as though they were obtained from a non-moving body. The weighted-mean point is determined for each series of measuring values for each specific orientation of the measuring beams. The distance to a point of the image plane is subsequently determined for all weighted-mean lines which pass through said weighted-mean point perpendicular to the measuring coordinates. Next, the measuring values are then shifted or processed in a shifted manner in conformity with said distance.
申请公布号 US4144569(A) 申请公布日期 1979.03.13
申请号 US19770839620 申请日期 1977.10.05
申请人 U.S. PHILIPS CORPORATION 发明人 WAGNER, WOLFGANG
分类号 G01N23/04;A61B6/03;G06T11/00;(IPC1-7):G01N23/00 主分类号 G01N23/04
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