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SPECTRAL CT IMAGE RECONSTRUCTING METHOD AND SPECTRAL CT IMAGING SYSTEM
SPECTRAL CT IMAGE RECONSTRUCTING METHOD AND SPECTRAL CT IMAGING SYSTEM
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机译:光谱CT图像重建方法及光谱CT成像系统
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摘要
The present application relates to a spectral CT image reconstructing method and a spectral CT imaging system. The spectral CT image reconstructing method comprises: collecting incomplete original projection data in each of a plurality of energy windows; performing a projection data cross estimation using corresponding original projection data in at least one pair of energy windows constituted by different energy windows of the plurality of energy windows to obtain estimated projection data, wherein each pair of energy windows comprises a first energy window and a second energy window; combining the original projection data and the corresponding estimated projection data to obtain complete projection data; and reconstructing a spectral CT image using the complete projection data. The method of the present application can address the problem of inadequate projection data for reconstruction.
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