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  The effect of overabundant projection directions on 3D reconstruction algorithms

Sorzano, C. O. S., Marabini, R., Boisset, N., Rietzel, E., Schröder, R. R., Herman, G. T., et al. (2001). The effect of overabundant projection directions on 3D reconstruction algorithms. Journal of Structural Biology, 133(2), 108-118. doi:10.1006/jsbi.2001.4338.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-22C3-A Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0029-22C4-8
Genre: Journal Article
Alternative Title : The effect of overabundant projection directions on 3D reconstruction algorithms

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JStructBiol_133_2001_108.pdf (Any fulltext), 327KB
 
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 Creators:
Sorzano, C. O. S., Author
Marabini, Roberto, Author
Boisset, Nicolas, Author
Rietzel, Eicke1, Author              
Schröder, Rasmus R.1, 2, Author              
Herman, Gabor T., Author
Carazo, José-Maria, Author
Affiliations:
1Emeritus Group Biophysics, Max Planck Institute for Medical Research, Max Planck Society, ou_1497712              
2Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society, ou_1497700              

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Free keywords: 3D reconstruction algorithms; algorithm optimization; algorithm comparison; collection geometry
 Abstract: The experimental process of collecting images from macromolecules in an electron microscope is such that it does not allow for prior specification of the angular distribution of the projection images. As a consequence, an uneven distribution of projection directions may occur. Concerns have been raised recently about the behavior of 3D reconstruction algorithms for the case of unevenly distributed projections. It has been illustrated on experimental data that in the case of a heavily uneven distribution of projection directions some algorithms tend to elongate the reconstructed volumes along the overloaded direction so much as to make a quantitative biological analysis impossible. In answer to these concerns we have developed a strategy for quantitative comparison and optimization of 3D reconstruction algorithms. We apply this strategy to quantitatively analyze algebraic reconstruction techniques (ART) with blobs, simultaneous iterative reconstruction techniques (SIRT) with voxels, and weighted backprojection (WBP). We show that the elongation artifacts that had been previously reported can be strongly reduced. With our specific choices for the free parameters of the three algorithms, WBP reconstructions tend to be inferior to those obtained with either SIRT or ART and the results obtained with ART are comparable to those with SIRT, but at a very small fraction of the computational cost of SIRT.

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Language(s): eng - English
 Dates: 2001-01-092000-12-062001-01-092001-05-232001-02-01
 Publication Status: Published in print
 Pages: 11
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Journal of Structural Biology
  Abbreviation : J. Struct. Biol.
Source Genre: Journal
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Publ. Info: Orlando, Fla. : Academic Press
Pages: - Volume / Issue: 133 (2) Sequence Number: - Start / End Page: 108 - 118 Identifier: ISSN: 1047-8477
CoNE: https://pure.mpg.de/cone/journals/resource/954922650160