Investigation of New Passive THz-Radiometer Scanner and Corresponding Target Detection Algorithm

Passive (handheld) THz radiometer scanner provides a new method of security inspection, which can not only protect the privacy of scanned person but also prevent potential damage to human body from high radiation, comparing with traditional instruments. This paper investigates the theoretical bases of object detection under human body background using THz Radiometer, and presents the corresponding object detecting algorithm based on DSP methods.