1. A system for identifying a potentially threat-containing object that has been subjected to imaging using an imaging apparatus, comprising: an object partitioner configured to partition one or more image representations of an object into two or more object partitions based upon an Eigen analysis of the one or more image representations, respective object partitions representative of a slice of the object; a layout vector generator configured to generate a layout feature vector describing the object based at least in part upon one or more features associated with respective object partitions; and a threat determiner configured to compare the layout feature vector to one or more pre-determined boundaries to determine whether the object is a potentially threat-containing object.