Abstract
Performances of multi-modality image registration methods that are based on information-theoretic registration criteria crucially depend on the specific computational implementation. We proposed a new implementation based on the improved fast Gauss transform so as to estimate, from all available intensity samples, the intensity density functions needed to compute the information-theoretic criteria. The proposed and several other state-of-the-art implementations were tested and compared in 3-D rigid-body registration of multi-modal brain volumes. Experimental results indicate that the proposed implementation achieves the most consistent spatial alignment of brain volumes at a subpixel accuracy.
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Špiclin, Ž., Likar, B., Pernuš, F. (2011). Information-Theoretic Multi-modal Image Registration Based on the Improved Fast Gauss Transform: Application to Brain Images. In: Liu, T., Shen, D., Ibanez, L., Tao, X. (eds) Multimodal Brain Image Analysis. MBIA 2011. Lecture Notes in Computer Science, vol 7012. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-24446-9_17
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DOI: https://doi.org/10.1007/978-3-642-24446-9_17
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