Millimeter wave holographic three-dimensional imaging-based human body security inspection system and method

Abstract

The invention discloses a millimeter wave holographic three-dimensional imaging-based human body security inspection system and method. The millimeter wave holographic three-dimensional imaging-based human body security inspection system includes an inspection room, a mechanical scanning mechanism, a millimeter wave transmitting-receiving unit, an image processing unit and an alarm unit; the mechanical scanning mechanism is used for driving the millimeter wave transmitting-receiving unit to move simultaneously relative to people to be inspected in a horizontal direction and a vertical direction; the millimeter wave transmitting-receiving unit is used for transmitting millimeter wave signals to the people to be inspected and receiving millimeter wave signals reflected from the people to be inspected; the image processing unit is used for performing holographic three-dimensional imaging on the bodies of the people to be inspected so as to obtain three-dimensional image of the bodies; and the alarm unit is used for comparing the three-dimensional images of the bodies with secure body three-dimensional images pre-stored in the alarm unit, and emitting alarms if the three-dimensional image of the bodies are not matched with the secure body three-dimensional images pre-stored in the alarm unit. According to the millimeter wave holographic three-dimensional imaging-based human body security inspection system of the invention, mechanical scanning is adopted to replace electric scanning. The millimeter wave holographic three-dimensional imaging-based human body security inspection system has the advantages of low cost, simple structure, short production period, high resolution, fast imaging time and wide application.

Description

technical field [0001] The invention relates to a human body security inspection system, in particular to a human body security inspection system and method based on millimeter wave holographic three-dimensional imaging. Background technique [0002] In recent years, security issues have increasingly attracted the attention of people all over the world, and higher requirements have been put forward for the reliability and intelligence of the security inspection system. Traditional metal detectors can only detect short-distance and small-scale targets, and their efficiency is low, which is far from meeting the needs of security inspections. Although various rays such as X-rays have strong penetrating power, they will cause radiation damage to the human body under test. Even if X-ray machines with low radiation doses currently exist, they are still not easily accepted by the public. Infrared rays are imaged by the surface temperature of objects, and cannot be clearly imaged w...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the technical problems of slow imaging rate, poor resolution, many transceiver units and complex structure in the current human body security inspection system based on millimeter wave imaging

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