A Registration Method of Passive Millimeter Wave Image and Visible Light Image in Human Body Security Inspection

A technology of human body security inspection and millimeter wave, which is applied in image analysis, image data processing, instruments, etc., and can solve problems such as no consideration
CN109544521BActive Publication Date: 2021-08-17BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2021-08-17

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Abstract

The invention relates to a registration method of a passive millimeter wave image and a visible light image in a human body security inspection, which is used for the registration of a visible light image and a passive millimeter wave image in a millimeter wave rapid security inspection. Determine the boundary of the field of view between the visible light image and the passive millimeter wave image by hand-held calibration light source, and save the calibration point image; then comprehensively consider the difference in the field of view angle range between the visible light image and the passive millimeter wave image, optimize the calibration point; finally use the visible light The image is used as the reference, and the perspective transformation and translation transformation of the passive millimeter wave image are completed, and the registration parameters are saved. At the same time, the calibration distance is limited to four distances of 2.0, 2.5, 3.0 and 3.5 meters. In practical applications, the distance information is used to select appropriate registration parameters, and finally the real-time registration output of visible light and passive millimeter wave images is completed. The invention can realize real-time registration output of visible light and passive millimeter wave images in the millimeter wave fast security inspection system.
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Description

Technical field

[0001] The present invention relates to a method of registration according to the passive millimeter wave image, in particular a mm rapid security system, belonging to the technical field of computer graphics, mainly used in millimeter wave body security inspections. Millimeter wave image and registration of visible light images. Background technique

[0002] With the development of millimeter wave detection technology, the security system based on millimeter wave fast imaging can quickly accurately detect the concealed contraband carried by non-cooperative targets, which has been widely studied and applied, especially at the airport, railway station and large venues. Security inspection.

[0003] The traditional security system mainly has metal detectors, hand-held metal detectors, X-ray security systems, etc., but metal detection systems, including metal detectors and hand-held metal detectors, can only detect whether non-cooperative targets carry metal items, u...

Claims

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