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- W2012806915 abstract "We present a model-based parallel algorithm for origin and orientation refinement for 3D reconstruction in cryoTEM. The algorithm is based upon the Projection Theorem of the Fourier Transform. Rather than projecting the current 3D model and searching for the best match between an experimental view and the calculated projections, the algorithm computes the Discrete Fourier Transform (DFT) of each projection and searches for the central section (“cut”) of the 3D DFT that best matches the DFT of the projection. Factors that affect the efficiency of a parallel program are first reviewed and then the performance and limitations of the proposed algorithm are discussed. The parallel program that implements this algorithm, called PO2R, has been used for the refinement of several virus structures, including those of the 500 Å diameter dengue virus (to 9.5 Å resolution), the 850 Å mammalian reovirus (to better than 7 Å), and the 1800 Å paramecium bursaria chlorella virus (to 15 Å)." @default.
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- W2012806915 date "2006-04-01" @default.
- W2012806915 modified "2023-10-17" @default.
- W2012806915 title "A model-based parallel origin and orientation refinement algorithm for cryoTEM and its application to the study of virus structures" @default.
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- W2012806915 doi "https://doi.org/10.1016/j.jsb.2005.06.009" @default.
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