Complex Dual Tree Wavelet Multi-Level Feature Based Transformation Parameter Estimation for 3d Medical Image Registration
P.H. Sunitha1, Sreerama Reddy G.M2, Cyril Prasanna Raj3

1P.H. Sunitha, Research Scholar, M.S. Engineerig College, Bangalore. 2Sreerama Reddy G.M, Principal, Department of Electronics and Communication, CBIT, Kolar.
3Cyril Prasanna Raj P, Professor, Department of Electronics and Communication, M.S. Engineering College, Bangalore.

Manuscript received on 25 June 2019 | Revised Manuscript received on 05 July 2019 | Manuscript published on 30 July 2019 | PP: 8 | Volume-8 Issue-9, July 2019 | Retrieval Number: H7331068819/19©BEIESP | DOI: 10.35940/ijitee.H7331078919

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Abstract: 3D image registration of CT and MRI data is carried out using DTCWT sub bands by considering the features from all 64 bands. The features are selected by considering Mattes Mutual Information Metric and the optimizer algorithm estimates the optimum transformation parameters from all the 64 bands. Transformation parameters from eight low pass bands from each octave are averaged to identify optimum registration parameters. Similarly, for registration of high pass bands mean of transformation parameters from 56 bands are identified. The proposed registration algorithm is suitable for register multimodal medical images and the proposed algorithm is validated for more than 20 3D images. Mutual information and joint entropy is estimated to demonstrate the advantages of proposed algorithm overt that of intensity based algorithm. With features identified from 56 bands with six orientations the registered image is found to consist of features from both input images with closeness level measured to be within 12%.
Index Terms: Image Registration, 3D, Complex Dual Tree Wavelet, Multilevel, Medical Image

Scope of the Article: 3D Printing