Invention Grant
- Patent Title: 2D image shift registration through correlation and tailored robust regression
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Application No.: US17864136Application Date: 2022-07-13
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Publication No.: US12125166B2Publication Date: 2024-10-22
- Inventor: Patrick D. Fitzgerald , Brant M. Kaylor
- Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.
- Applicant Address: US NH Nashua
- Assignee: BAE Systems Information and Electronic Systems Integration Inc.
- Current Assignee: BAE Systems Information and Electronic Systems Integration Inc.
- Current Assignee Address: US NH Nashua
- Agency: Maine Cernota & Curran
- Main IPC: G06T3/14
- IPC: G06T3/14 ; G06F17/11 ; G06T3/4038

Abstract:
The disclosed method enables efficient registration and correction of random vertical and horizontal offsets of a plurality of images of a feature to enable combination thereof with maximum noise suppression. The method includes obtaining image cross correlations and estimating correlation peaks. If a correlation peak cannot be uniquely determined for a given correlation, all candidates are retained. An improved robust weighted regression is applied thereto to obtain estimates of the image shifts. Dimensional symmetry is exploited to remove redundancy from the weighted normal equation, and computational requirements are further reduced by analytically determining the coefficients matrix and the inhomogeneous matrix, thereby circumventing conventional computations. Solution of the resulting consistent, full rank, linear system requires only matrix inversion. For N images, the present method thereby increases computation speed and reduces storage by approximately N2.
Public/Granted literature
- US20240020789A1 2D IMAGE SHIFT REGISTRATION THROUGH CORRELATION AND TAILORED ROBUST REGRESSION Public/Granted day:2024-01-18
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