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|1. (WO2018121325) MULTI-ANGLE IMAGING DATA PROCESSING METHOD AND APPARATUS|
|Applicants:||NUCTECH COMPANY LIMITED
|Title:||MULTI-ANGLE IMAGING DATA PROCESSING METHOD AND APPARATUS|
A multi-angle imaging data processing method and apparatus. The method comprises: irradiating, using X-ray, and from two or more angles, an object to be checked (120) to obtain multi-angle imaging data (310); extracting, from the multi-angle imaging data, data representing the same region in the object to be checked (120) (320); reconstructing, according to the extracted data, a cross-sectional area (330); processing, on the basis of gradient descent, the reconstructed cross-sectional area to obtain a processed reconstructed cross-sectional area; determining, according to the processed reconstructed cross-sectional area, an effective atomic number and a characteristic density in the region; and determining, on the basis of the determined effective atomic number and characteristic density, whether the region contains a prohibited article.