3D Video-Doppler-Radar (VIDAR) Imaging System
First Claim
1. An imaging system to generate an image of a scene, comprising:
- a first movable radar to generate a first radar motion ray;
a second movable radar to generate a second radar motion ray;
a third fixed radar to generate a third radar direction ray;
a video camera to receive data from the intersection of the first radar motion ray and the second radar motion ray.
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Accused Products
Abstract
A moving sensor suite for imaging a scene has three Doppler radars, two moving and one fixed, a fixed video camera and a fixed GPS receiver. The Doppler radars measure the relative velocities between the radars and the scene, as well as the scene'"'"'s electromagnetic reflectivity, while the video camera records the motion of the camera and the optical property of the scene. The correct registration of the Doppler radars and the camera is established by finding the intersections of the moving Doppler radar motion vectors with the image plane of the video camera. The scene features in the first frame are determined by Doppler circle intersections. The correspondences of the features in the next two frames are established by a feature matching operation.
21 Citations
18 Claims
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1. An imaging system to generate an image of a scene, comprising:
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a first movable radar to generate a first radar motion ray; a second movable radar to generate a second radar motion ray; a third fixed radar to generate a third radar direction ray; a video camera to receive data from the intersection of the first radar motion ray and the second radar motion ray. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An imaging system adapted for registration, comprising:
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a first movable radar to generate a first radar motion ray; a second movable radar to generate a second radar motion ray; a third fixed radar to generate a third radar direction ray; a video camera to define an virtual image plane, wherein the first radar motion ray and the second radar motion ray register with the virtual image plane of the video camera. - View Dependent Claims (16, 17, 18)
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Specification