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1999
IEEE

Parallel Algorithms for 3D Reconstruction of Asymmetric Objects from Electron Micrographs

9 years 4 months ago
Parallel Algorithms for 3D Reconstruction of Asymmetric Objects from Electron Micrographs
We present new parallel algorithms for 3D reconstruction of objects from 2D projections and their application for the determination of the structure of macromolecules from electron micrographs. A multi-resolution orientation determination algorithm uses a parallel search to determine the `best t' of a given image with images in a reference database. The 3D reconstruction algorithm uses Cartesian coordinates and permits the reconstruction of objects that do not posses symmetries. The method decomposes a large linear system into a set of smaller systems that can be solved independently on di erent processors of a parallel computer or on a cluster of workstations. The paper outlines the reconstruction process and the data partitioning and load balancing issues pertinent to the parallel implementation of the algorithm; preliminary results obtained on a SGI Origin 2000 system are given. Key words: Parallel processing, Structural biology, Electron microscopy, 3D reconstruction, Scienti...
Robert E. Lynch, Dan C. Marinescu, Hong Lin, Timot
Added 03 Aug 2010
Updated 03 Aug 2010
Type Conference
Year 1999
Where IPPS
Authors Robert E. Lynch, Dan C. Marinescu, Hong Lin, Timothy S. Baker
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