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Next: Results Up: Methods Previous: Consistent Intensity-based Registration
Appending the Consistent Landmark and Intensity Registration Algorithms
The parameterization of the transformations used in the consistent landmark (CL-TPS) algorithm and the consistent intensity (CI-TPS) algorithm are different. A spatial sampling parameterization of the displacement field is used in the CL-TPS algorithm while a Fourier series parameterization of the displacement field is used in the CI-TPS algorithm. The parameterization used in one algorithm must be converted into the parameterization of the other in order to use the result from one algorithm to initialize the other as outlined in the CLI-TPS algorithm defined in Fig. 1. This is accomplished by using the Fast Fourier Transform (FFT) and the Inverse Fast Fourier Transform (IFFT) to convert the spatial representation of the displacement field to the Fourier Series representation and vice versa.
Xiujuan Geng 2002-07-04
Copyright © 2002 • The University of Iowa. All rights reserved.
Iowa City, Iowa 52242
Questions or Comments: gary-christensen@uiowa.edu