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Real-time multi-modal rigid registration based on a novel symmetric-SIFT descriptor
2009
Progress in Natural Science: Materials International
The purpose of image registration is to spatially align two or more single-modality images taken at different times, or several images acquired by multiple imaging modalities. Intensity-based registration usually requires optimization of the similarity metric between the images. However, global optimization techniques are too time-consuming, and local optimization techniques frequently fail to search the global transformation space because of the large initial misalignment of the two images.
doi:10.1016/j.pnsc.2008.06.029
fatcat:y45y4gvlwzckdg2yjiavfy5muu