Image analysis – Applications – Target tracking or detecting
Reexamination Certificate
2011-03-22
2011-03-22
Bhatnagar, Anand (Department: 2624)
Image analysis
Applications
Target tracking or detecting
C348S169000
Reexamination Certificate
active
07912247
ABSTRACT:
The present invention provides for simple and streamlined boresight correlation of FLIR-to-missile video. Boresight correlation is performed with un-NUCed missile video, which allows boresight correlation and NUC to be performed simultaneously thereby reducing the time required to acquire a target and fire the missile. The current approach uses the motion of the missile seeker for NUCing to produce spatial gradient filtering in the missile image by differencing images as the seeker moves. This compensates DC non-uniformities in the image. A FLIR image is processed with a matching displace and subtract spatial filter constructed based on the tracked scene motion. The FLIR image is resampled to match the missile image resolution, and the two images are preprocessed and correlated using conventional methods. Improved NUC is provided by cross-referencing multiple measurements of each area of the scene as viewed by different pixels in the imager. This approach is based on the simple yet novel premise that every pixel in the array that looks at the same thing should see the same thing. As a result, the NUC terms adapt to non-uniformities in the imager and not the scene.
REFERENCES:
patent: 3974383 (1976-08-01), Chapman
patent: 5018218 (1991-05-01), Peregrim et al.
patent: 5052045 (1991-09-01), Peregrim et al.
patent: 5129595 (1992-07-01), Thiede et al.
patent: 5168529 (1992-12-01), Peregrim et al.
patent: 5210799 (1993-05-01), Rao
patent: 5420421 (1995-05-01), Lindgren et al.
patent: 5619426 (1997-04-01), Hutchens et al.
patent: 5680487 (1997-10-01), Markandey
patent: 5903659 (1999-05-01), Kilgore et al.
patent: 5940140 (1999-08-01), Dadourian et al.
patent: 6243498 (2001-06-01), Chen et al.
patent: 6836320 (2004-12-01), Deflumere et al.
patent: 6897446 (2005-05-01), Chen et al.
patent: 2002/0159101 (2002-10-01), Alderson et al.
patent: 2002/0159651 (2002-10-01), Tener et al.
patent: 0917103 (1990-05-01), None
patent: 0986252 (2000-03-01), None
patent: WO 02067575 (2002-08-01), None
Kitchen Edward N.
Williams Darin S.
Bhatnagar Anand
Gifford Eric A.
Raytheon Company
LandOfFree
Method of boresight correlation of imager video to reference... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of boresight correlation of imager video to reference..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of boresight correlation of imager video to reference... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2726095