Patent ID: 8094874

Claim:
A system for contextual analysis of radiographic images of a cargo container, the system comprising: a material context analysis computer module including software instructions stored on a non-transitory computer readable medium, the software instructions, when executed, cause the material context analysis module to perform steps comprising: receiving one or more radiographic images of the cargo container, each radiographic image generated using a different imaging parameter; performing a region analysis including identifying any regions within the radiographic images having a high atomic number, the regions being categorized as being in one of an expected area or an area associated with a potential threat; performing a material feature analysis including identifying features present in the radiographic images that correspond to possible shielding; receiving data from a context information knowledge base; and generating, as output from the computer module, a scene hypothesis using a set of rules, the scene hypothesis being based on the region analysis, the material feature analysis, and the data received from the context information knowledge base, the scene hypothesis indicating regions within the radiographic images that may contain a threat.