Concealed object detection

A computer program product for detecting the presence of on-body concealed objects, the computer program product comprising a computer-readable storage medium including program instructions embodied therewith, wherein the computer-readable storage medium is not a transitory signal per se, the program instructions executable by a processor to cause the processor to perform a method comprising:

• receiving a visible-domain camera image for a scene;
• determining, using the visible-domain camera image, a region of interest within the scene where a subject is present;
• receiving at least one of an infrared-domain camera image or a millimeter-wave (mmwave) radar image that each cover the region of interest;
• in response to receiving the infrared-domain camera image, determining emissivity information for the region of interest using the infrared-domain camera image;
• in response to receiving the mmwave radar image, determining reflectivity information for the region of interest using the mmwave radar image;
• and
• determining a concealed object classification for the subject based on one of the emissivity information or the reflectivity information,
• wherein the concealed object classification is one of a group of determinable concealed object classifications that comprise each of:
• an active device classification, a reflecting object classification, a no detected object classification, and a thick covering classification.

A system for detecting the presence of on-body concealed objects, the system comprising:

• one or more processors;
• and
• a computer-readable storage medium including program instructions embodied therewith, wherein the computer-readable storage medium is not a transitory signal per se, the program instructions executable by the one or more processors to cause the one or more processors to perform a method comprising:
• receiving a visible-domain camera image for a scene;
• determining, using the visible-domain camera image, a region of interest within the scene where a subject is present;
• receiving at least one of an infrared-domain camera image or a millimeter-wave (mmwave) radar image that each cover the region of interest;
• in response to receiving the infrared-domain camera image, determining emissivity information for the region of interest using the infrared-domain camera image;
• in response to receiving the mmwave radar image, determining reflectivity information for the region of interest using the mmwave radar image;
• and
• determining a concealed object classification for the subject based on one of the emissivity information or the reflectivity information,
• wherein the concealed object classification is one of a group of determinable concealed object classifications that comprise each of:
• an active device classification, a reflecting object classification, a no detected object classification, and a thick covering classification.