公开(公告)号：US20240328864A1

公开(公告)日：2024-10-03

申请号：US18739783

申请日：2024-06-11

Applicant: Syght, Inc.

Inventor： Charles Partee

IPC: G01J5/53 ,  G01J5/00 ,  G01J5/02 ,  G01J5/04 ,  G01J5/48 ,  G01J5/80 ,  G01V8/00 ,  H04N5/33

CPC classification number: G01J5/53 ,  G01J5/026 ,  G01J5/041 ,  G01V8/005 ,  H04N5/33 ,  G01J2005/0077 ,  G01J5/48 ,  G01J5/802

Abstract: The disclosed MMW wave sensing camera calibration arrangement that generally includes a millimeter wave camera that uses an energy emission calibration panel as a calibration standard. The MMW camera is positioned opposite the calibration panel in the MMW camera's field-of-view. The calibration panel is held at a constant temperature to provide a standard emission of millimeter waves that is sensed by an MMW sensor to set or otherwise calibrate the MMW camera to a baseline emissivity value corresponding to the panel. The MMW camera is linked to a microprocessor and non-transient computer memory containing a calibration routine that is configured to reset the baseline only when nothing obstructs the calibration panel's field-of-view. A visual display is linked to the MMW camera and configured to display an MMW signature of a metal object that is disposed on a person's body when the person's body is in the field-of-view, the metal object concealed by clothing worn over the person's body.