THREE-FRAME DIFFERENCE MOVING TARGET ACQUISITION SYSTEM AND METHOD FOR TARGET TRACK IDENTIFICATION
First Claim
1. A three-frame difference moving target-tracking system for target track identification, the system configured to:
- perform a three-frame difference calculation on a first offset image, a second offset image and a reference image to generate a three-frame difference output image; and
perform clutter suppression on the three-frame difference image to generate a clutter-suppressed output image.
1 Assignment
0 Petitions
Accused Products
Abstract
Embodiments of a target-tracking system and method of determining an initial target track in a high-clutter environment are generally described herein. The target-tracking system may register image information of first and second warped images with image information of a reference image. Pixels of the warped images may be offset based on the outputs of the registration to align each warped images with the reference image. A three-frame difference calculation may be performed on the offset images and the reference image to generate a three-frame difference output image. Clutter suppression may be performed on the three-frame difference image to generate a clutter-suppressed output image for use in target-track identification. The clutter suppression may include performing a gradient operation on a background image to remove any gradient objects.
12 Citations
20 Claims
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1. A three-frame difference moving target-tracking system for target track identification, the system configured to:
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perform a three-frame difference calculation on a first offset image, a second offset image and a reference image to generate a three-frame difference output image; and perform clutter suppression on the three-frame difference image to generate a clutter-suppressed output image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of target acquisition comprising:
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registering image information of first and second warped images with image information of a reference image; offsetting pixels of the warped images based on the outputs of the registering to align the warped images with the reference image; performing a three-frame difference calculation on the offset images and the reference image to generate a three-frame difference output image; and performing clutter suppression on the three-frame difference image to generate a clutter-suppressed output image for use in identifying a moving target. - View Dependent Claims (13, 14, 15, 16)
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17. A moving platform for surveillance comprising:
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an imager for generating a frames of video; and a target-tracking system for acquiring and tracking a moving target based on the frames of video, wherein the target-tracking system is configured to; perform a first registration to align image information of a first warped image with image information of a reference image; perform a second registration to align image information of a second warped image with the image information of the reference image; offset pixels of the first warped image based on the output of the first registration to align with corresponding pixels of the reference image to generate a first offset image; offset pixels of the second warped image based on the output of the second registration to align with corresponding pixels of the reference image to generate a second offset image; perform a three-frame difference calculation on the first offset image, the second offset image and the reference image to generate a three-frame difference output image; and perform clutter suppression on the three-frame difference image to generate a clutter-suppressed output image. - View Dependent Claims (18, 19, 20)
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Specification