X-RAY COMPUTER TOMOGRAPHY IMAGE PICK-UP DEVICE AND IMAGE RECONSTRUCTION METHOD
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机译:X射线计算机断层摄影术的图像拾取装置和图像重建方法
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摘要
In the present invention, an FBP algorithm is used, and without losing calculation efficiency, noise within an image is effectively reduced. A noise weighting determination unit (114A), in accordance with at least a specific noise model, determines a weighted value for weighting projection data. A filter shaping unit (114B) shapes at least one reconstruction filter on the basis of a parameter that includes a weighted value. An image generation unit (114C) generates an image on the basis of the reconstruction filter.
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