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Multiresolution tomographic reconstruction using wavelets

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2 Author(s)
A. H. Delaney ; Coordinated Sci. Lab., Illinois Univ., Urbana, IL, USA ; Y. Bresler

Shows how the separable two-dimensional wavelet representation leads naturally to an efficient multiresolution tomographic reconstruction algorithm. This algorithm is similar to the conventional filtered backprojection algorithm, except that the filters are now angle dependent, and the backprojection gives the wavelet coefficients of the reconstruction, which are then used to synthesize the reconstruction at various resolution levels. By reconstructing only a small localized region at high resolution, the authors show how radiation exposure and computation can be significantly reduced, compared to a standard reconstruction

Published in:

IEEE Transactions on Image Processing  (Volume:4 ,  Issue: 6 )