Segmenting method for delimiting objects as segments in a package in an x-ray diffraction analysis

Abstract

The present invention relates to a segmentation method for delimitating objects (O) as segments (S) in an item of baggage (B) during an X-ray diffraction analysis, comprising the following steps: recording pulse transmission functions (20) for a large number of voxels (30) of the item of baggage (B), comparing the recorded pulse transmission functions (20) with at least one specified material function (40) and generating a similarity value (50) as a comparison result, selecting at least one voxel (30) as the starting voxel (32) based on the similarity values (50), creating at least one voxel cluster (34) starting out from the at least one selected starting voxel (32) using a combination method comprising the following steps a) combining the starting voxel (32) with neighbouring voxels (33) in all spatial directions, b) determining the similarity value (50) with the at least one material function (40) for each of these combinations, c) adding to the voxel cluster (34) those neighbouring voxels (33) which produce an improvement of the similarity value (50), d) repeating steps a) to c) up to a termination criterion (60), combining overlapping voxel clusters (34) into at least one segment (S), taking into account an increase in the similarity value (50) through the combination.

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