2024Muller Common

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Revision as of 05:41, 8 August 2024 by WikiSysop (talk | contribs) (Created page with "== Citation == Muller, Tommi / Duncan, Adriana L. / Verbeke, Eric / Kileel, Joe. Algebraic Constraints and Algorithms for Common Lines in Cryo-EM. 2024. Biological Imaging, p. 1-30 == Abstract == We revisit the topic of common lines between projection images in single particle cryo-electron microscopy (cryo- EM). We derive a novel low-rank constraint on a certain 2nxn matrix storing properly-scaled basis vectors for the common lines between n projection images of one...")
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Citation

Muller, Tommi / Duncan, Adriana L. / Verbeke, Eric / Kileel, Joe. Algebraic Constraints and Algorithms for Common Lines in Cryo-EM. 2024. Biological Imaging, p. 1-30

Abstract

We revisit the topic of common lines between projection images in single particle cryo-electron microscopy (cryo- EM). We derive a novel low-rank constraint on a certain 2nxn matrix storing properly-scaled basis vectors for the common lines between n projection images of one molecular conformation. Using this algebraic constraint and others, we give optimization algorithms to denoise common lines and recover the unknown 3D rotations associated to the images. As an application, we develop a clustering algorithm to partition a set of noisy images into homogeneous communities using common lines, in the case of discrete heterogeneity in cryo-EM.We demonstrate the methods on synthetic and experimental datasets.

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https://www.cambridge.org/core/journals/biological-imaging/article/algebraic-constraints-and-algorithms-for-common-lines-in-cryoem/E8857389E474D2C87A59C2E9881C679B

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