The present invention is an imaging system for detecting concealed objects on an individual. The imaging system includes an imaging zone that is illuminated with millimeter wave energy. A plurality of millimeter wave cameras are focused to fully surround the imaging zone and have the ability to detect millimeter wave frequencies reflected from the imaging zone. As an individual passes through the imaging zone the plurality of millimeter wave cameras detect concealed objects by identifying differences in the millimeter wave energy reflected by the individual's body and a concealed object. A composite image is generated by a central processing unit and displayed on a monitor showing the concealed object on the individual through optical contrast.