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System and method for tomographic reconstruction in the 2D parallel-beam geometry
System and method for tomographic reconstruction in the 2D parallel-beam geometry
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机译:二维平行光束几何中的层析成像重建系统和方法
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摘要
An alternative analytical method for tomographic reconstruction in the 2D parallel-beam geometry is presented. This method may follow a filtering and backprojection scheme and may involve a global filtering in the projection domain and a local filtering in the image domain. For example, the method may include applying Hilbert filtering to the received projection data, computing an antiderivative of the filtered data, backprojecting the antiderivative into the image domain, and computing the 2D Laplacian of the backprojection image.
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