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Apparatus and method for reconstruction of volumetric images in a divergent scanning computed tomography system
Apparatus and method for reconstruction of volumetric images in a divergent scanning computed tomography system
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机译:在发散扫描计算机断层摄影系统中重建体积图像的设备和方法
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摘要
An apparatus and method for reconstructing image data for a region are described. A radiation source and multiple one-dimensional linear or two-dimensional planar area detector arrays located on opposed sides of a region angled generally along a circle centered at the radiation source are used to generate scan data for the region from a plurality of diverging radiation beams, i.e., a fan beam or cone beam. Individual pixels on the discreet detector arrays from the scan data for the region are reprojected onto a new single virtual detector array along a continuous equiangular arc or cylinder or equilinear line or plane prior to filtering and backprojecting to reconstruct the image data.
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