Patent ID: 8213672

Claim:
A method of detecting concealed objects on an individual, the method comprising: scanning an imaging zone of a scene for millimeter wave energy with a scanning apparatus, wherein the scanning apparatus having a reflective concave surface constrained to oscillate in a vertical plane to reflect millimeter wave energy of the imaging zone sequentially; correlating movement of the reflective concave surface to x-y coordinates in the imaging zone to determine the millimeter wave energy at a specific x-y coordinate of the imaging zone; focusing the millimeter wave energy using an optical lens; receiving the millimeter wave energy using a multi channel radiometer; calculating values for a grid of cells representing the millimeter wave energy received by the multi channel radiometer; analyzing differences between the values of the millimeter wave energy between the cells of the grid using algorithms; identifying contrast cells from the grid of cells wherein the contrast cells having values of the millimeter wave energy with a preselected difference between adjacent cells; forming a discrete image of the contrast cells; synchronizing the discrete image of the contrast cells with a video image of the imaging zone; forming a real-time composite image so that the imaging zone is overlaid with the discrete image of the contrast cells; and displaying the composite image.