ISSN 1004-4140
CN 11-3017/P
Volume 21 Issue 2
Jun.  2012
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ZHANG Li, LIU Chang. Basis Function Approach to Computerized Tomography[J]. CT Theory and Applications, 2012, 21(2): 239-246.
Citation: ZHANG Li, LIU Chang. Basis Function Approach to Computerized Tomography[J]. CT Theory and Applications, 2012, 21(2): 239-246.

Basis Function Approach to Computerized Tomography

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  • Received Date: December 07, 2011
  • Available Online: December 09, 2022
  • We have a image reconstruction of the discrete model that based on the ideal small area replaces the original pixel grid in the traditional sense. The function about the distance form the ideal small area to the ray, to measure the size of the attenuation coefficient when the radiation passes through the ideal small area.In this image reconstruction of the discrete model we introduce the basis function.The discrete image is mapped into continuous image by convolution with a basis function.We discuss the conditions the basis function need to meet and give two basis functions and their firequency properties.
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