The Improvement of Katsevich Reconstruction Algorithm Based on Cone-Beam CT

Li Fang Wang

doi:10.4028/www.scientific.net/AMM.239-240.1148

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 239-240The Improvement of Katsevich Reconstruction...

The Improvement of Katsevich Reconstruction Algorithm Based on Cone-Beam CT

Abstract:

The Katsevich reconstruction algorithm based on cone-beam must compute the derivative of projection data in the reconstruction process, but projection data are discrete and haven’t derivative. So the derivatives of the polynomial interpolation function are as approximation of the derivative of projection data. To verify the effectiveness of this method, 3D Shepp-Logan model is reconstructed by the method and the average gradient is used to measure the clarity of image. The experimental results show that this method enables image clearer and improves image quality

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Periodical:

Applied Mechanics and Materials (Volumes 239-240)

Pages:

1148-1151

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.239-240.1148

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Online since:

December 2012

Authors:

Li Fang Wang

Keywords:

3D Shepp-Logan Model, Cone-Beam CT, Katsevich Reconstruction Algorithm

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References

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