International Tables for Crystallography
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Classification and use of image data International Tables for Crystallography (2006). Vol. G, ch. 3.7, pp. 199-205 [ doi:10.1107/97809553602060000739 ] Abstract This chapter describes the categories and organization of data items used in the representation of image data. The classification applies to both Crystallographic Binary File (CBF) and Image-supporting Crystallographic Information File (imgCIF) representations. The primary motivation for introducing the items defined in the CBF/imgCIF dictionary is to extend the mmCIF dictionary (Chapter 3.6 ) for the storage of synchrotron diffraction images. However, these items have the potential for use in other fields that require binary image data, including journal publishing, the creation of web pages or the production of movies. Data categories in the CBF/imgCIF dictionary support one-, two- and three-dimensional array detectors that output data organized by time and/or wavelength. Three major groups of categories are defined: ARRAY_DATA describes the image data themselves; AXIS is used to identify unambiguously the laboratory coordinate system; and DIFFRN introduces new terms that characterize the experimental apparatus and measurements. |
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About International Tables for Crystallography
International Tables for Crystallography is the definitive resource and reference work for crystallography. The multi-volume series comprises articles and tables of data relevant to crystallographic research and to applications of crystallographic methods in all sciences concerned with the structure and properties of materials.