Image reconstruction using symmetry

被引：3
|
作者：
Lo, V. L. [1 ]
Millane, R. P. [1 ]
机构：
[1] Univ Canterbury, Dept Elect & Comp Engn, Computat Imaging Grp, Christchurch 1, New Zealand
来源：
IMAGE RECONSTRUCTION FROM INCOMPLETE DATA VI | 2010年 / 7800卷
关键词：
Image reconstruction; symmetry; x-ray crystallography; phase retrieval; PHASE RETRIEVAL;
D O I：
10.1117/12.861147
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Symmetry provides a source of redundancy which can be exploited in image reconstruction. In particular, internal symmetries in molecules can help to compensate for the loss of Fourier phase information in macromolecular x-ray crystallography. Symmetry projections are incorporated into iterative projection algorithms for reconstruction of macromolecular electron densities from x-ray diffraction amplitudes from crystals. The effects of interpolation are studied and the algorithms are applied to reconstruction of an icosahedral virus.
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页数：9
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