Design of shapes for precise image registration

This correspondence deals with the problem of designing planar shapes for subpixel image registration. Basic theoretical considerations are shown to lead to a lower bound on location accuracy. Optimal registration marks achieving this bound are discussed. These optimal designs, however, require very...

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Bibliographic Details
Published in:IEEE transactions on information theory 1998-11, Vol.44 (7), p.3156-3162
Main Authors: Bruckstein, A.M., O'Gorman, L., Orlitsky, A.
Format: Article
Language:English
Subjects:
Digital images
Digital imaging
Etching
Geometry
Image registration
Image resolution
Image sampling
Information geometry
Information technology
Lattices
Printing
Robustness
Shape
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Summary:This correspondence deals with the problem of designing planar shapes for subpixel image registration. Basic theoretical considerations are shown to lead to a lower bound on location accuracy. Optimal registration marks achieving this bound are discussed. These optimal designs, however, require very high printing or etching resolution and are inherently very sensitive to variations in the image sampling model (like scaling of grid size and rotation). More robust, optimal and suboptimal "topology-preserving" registration marks are then introduced and analyzed.
ISSN:0018-9448
1557-9654
DOI:10.1109/18.737548