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| Robust Deformable Medical Image Registration Using Optical Flow and Multilevel Free Form Deformation |
| WANG Min-you, HU Hai-bo, QIN Bin-jie |
| (School of Life Science and Biotechnology, Shanghai Jiaotong University, Shanghai 200240, China) |
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Abstract In order to track the brain tissue shift due to tumor resection during image guided surgery, this paper presented a framework for robust deformable registration based on the theory of optical flow, within which outlier detection is used to set up locallyrefined control points in multilevel free form deformation (FFD) model. Robust Mestimator was also introduced to weaken the effect of outliers in global optimization for getting improved registration result. This proposed method has successfully been applied to a number of registration tasks to demonstrate its applicability and robustness to outliers.
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Received: 01 November 2007
Published: 28 October 2008
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Corresponding Authors:
QIN Bin-jie
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