XREC logo

Crystal Recognition

XREC Copyright 2006,2007
by European Molecular Biology Laboratory

Authors: Sudhir Babu Pothineni, Tilo Strutz, David Watts and Victor S. Lamzin
logo XREC is a software suite for automated crystal recognition. Currently the software is applicable for automated centring of crystal on a beamline goniostat. XREC processes a series of images, which display different orientations of a crystal flash-cooled in a loop, determines the crystal centre and provides the estimate of accuracy of the results in terms of their 'reliability'. Please refer to the XREC Manual for details. The functionality of the software is being extended for automated scoring of crystallisation conditions.
This work is being supported by the BIOXHIT project, EC FP6 contract number LSHG-CT-2003-503420
XREC 3.1 license and download Variety of images
XREC References and Presentations Results (pie chart)
Download Manual (pdf) Download XREC DLL Manual (pdf)

Automated crystal centering image dataset

XREC has been designed to give accurate and reliable results regardless of the imaging conditions or type of loop used. At present XREC has been comprehensively tested on a dataset of 321 images from 5 different laboratories including images of crystals in nylon loops, LithoLoops© and MicroMounts©.

Experimental centering results on a 321 crystal image sequence dataset

We would like to extend this database to include further images and therefore appeal to the user community to share their crystallisation images and configuration data files with us so we are able to improve the performance of XREC in the future.

Please contact David Watts to submit images for inclusion in the database

We thank you in advance for your cooperation.
Pages on this server were created by
Sudhir Babu Pothineni, Tilo Strutz, David Watts and Victor S. Lamzin.
SBP, TS, DW and VL accept full responsibility for the content of these pages, for which EMBL is not responsible by any means.
Last Edited: 18.09.2008