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Algorithm for image reconstruction and image noise analysis in computed tomography
Algorithm for image reconstruction and image noise analysis in computed tomography
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机译:计算机体层摄影中的图像重建和图像噪声分析算法
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摘要
A method and apparatus are provided for reconstructing a tomographic image from fan-beam or cone-beam data. The method includes the steps of collecting fan-beam or cone-beam data over an image space, converting the fan-beam or cone-beam data to parallel-beam data with respect to a rotation angle within the image space, performing a shift variant filtration of the parallel-beam data within the image space and converting the processed data to images through backprojection or other means.
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