NON-INVASIVE METHOD TO IDENTIFY HIDDEN FOREIGN OBJECTS NEAR A HUMAN SUBJECT

摘要

A method and device (200) are revealed to non-invasively identity hidden foreign objects (312) in proximity of living tissue (1). More specifically to a method and device (200) detect and identify a foreign object(312) hidden under the clothes of a person (1) by measuring an infrared radiation signal emitted by the human subject and by measuring a change in the radiation signal caused by the presence of the foreign-object (312). The present invention is in the class of methods for structural analysis of multi-component materials. The particular multi-component structures/materials of interest include the following components: a human body (living tissue) (1), clothes, and a foreign object (312) that is composed one or more materials and may include metal, magnetic materials, conductive materials or dielectric materials. Even when the object is hidden behind clothes, the object is positively identified based on the interaction of optical radiation naturally emitted by the human body in the infrared frequency spectrum with every component of the examined object.