J 2014

A simple Fourier filter for suppression of the missing wedge ray artefacts in single-axis electron tomographic reconstructions

KOVÁČIK, Lubomír, Sami KEREÏCHE, Johanna HÖÖG, Pavel JŮDA, Pavel MATULA et. al.

Basic information

Original name

A simple Fourier filter for suppression of the missing wedge ray artefacts in single-axis electron tomographic reconstructions

Authors

KOVÁČIK, Lubomír (203 Czech Republic), Sami KEREÏCHE (250 France), Johanna HÖÖG (752 Sweden), Pavel JŮDA (203 Czech Republic), Pavel MATULA (203 Czech Republic, guarantor, belonging to the institution) and Ivan RAŠKA (203 Czech Republic)

Edition

Journal of Structural Biology, Academic Press, 2014, 1047-8477

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

Genetics and molecular biology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 3.231

RIV identification code

RIV/00216224:14330/14:00073497

Organization unit

Faculty of Informatics

UT WoS

000334570200015

Keywords in English

Electron tomography; Missing wedge; Missing wedge artefacts; Single-axis tilting

Tags

International impact, Reviewed
Změněno: 28/4/2015 13:32, doc. RNDr. Pavel Matula, Ph.D.

Abstract

V originále

he limited specimen tilting range that is typically available in electron tomography gives rise to a region in the Fourier space of the reconstructed object where experimental data are unavailable - the missing wedge. Since this region is sharply delimited from the area of available data, the reconstructed signal is typically hampered by convolution with its impulse response, which gives rise to the well-known missing wedge artefacts in 3D reconstructions. Despite the recent progress in the field of reconstruction and regularization techniques, the missing wedge artefacts remain untreated in most current reconstruction workflows in structural biology. Therefore we have designed a simple Fourier angular filter that effectively suppresses the ray artefacts in the single-axis tilting projection acquisition scheme, making single-axis tomographic reconstructions easier to interpret in particular at low signal-to-noise ratio in acquired projections. The proposed filter can be easily incorporated into current electron tomographic reconstruction schemes.

Links

GBP302/12/G157, research and development project
Name: Dynamika a organizace chromosomů během buněčného cyklu a při diferenciaci v normě a patologii
Investor: Czech Science Foundation