Visualization of 3D radar-data and merging with camera pictures. Measurements of concealed weapons on person
Publish date: 2006-01-01
Report number: FOI-R--2067--SE
Pages: 34
Written in: Swedish
Abstract
Radar measurements and camera pictures of a person with and without weapons are analyzed. The largest received signal amplitudes located in three dimensions, spherical range and two angles, were produced from a volume representation depending upon the amplitude and location. The images were studied to find efficient aspect angles to get the target information of most interest. In addition, a visualization method for presenting radar data merged with a camera picture has been developed. Trying to keep the resolution of the camera has been an aim in that part of the work. From the 3D-radar measurements the radar data may be projected upon the imaging plane of a camera with a arbitrary viewing center. This possibility is presented in a number of examples with one camera looking at the target scene from the radar location and another camera looking from an aspect angle differing 45 degrees realtive to the aspect angle of the radar.