Patent ID: 8159534

Claim:
A method for a remote target inspection in a monitored space, comprising: scanning the target with microwave radiation using at least two microwave emitters; collecting radiation reflected back from the monitored area using one or more detectors located to pick up the radiation in parallel channels; performing coherent processing to obtain maximum intensity values of a target image; constructing a three-dimensional microwave image; illuminating the target with optical radiation and recording at least video images of the target using at least two video cameras; synchronizing the video images with the microwave image; digitizing the video images and creating a three-dimensional image of the target; combining the three-dimensional video image and three-dimensional microwave image in one coordinate system; determining a distance l between the microwave image and the video image; if l is less than a threshold value l o , then producing a conclusion about an absence of a concealed dielectric object at the target in an amount which exceeds the maximum allowable value; if l is larger than the threshold value l o , then determining a presence of cavities in the three-dimensional microwave image in regions where l>l o and when the depth h of the cavity is greater than h o =l o (∈ 1/2 −l)/∈ 1/2 a presence of the concealed dielectric object at the target is ascertained, where h o is the threshold value of h, ∈ is assumed dielectric permeability of the dielectric object.