Efficient subpixel image registration algorithms
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| Authors | Manuel Guizar-Sicairos, Samuel T. Thurman, James R. Fienup |
| Journal/Conference Name | Optics Letters |
| Paper Category | and Optics, Atomic and Molecular Physics |
| Paper Abstract | Three new algorithms for 2D translation image registration to within a small fraction of a pixel that use nonlinear optimization and matrix-multiply discrete Fourier transforms are compared. These algorithms can achieve registration with an accuracy equivalent to that of the conventional fast Fourier transform upsampling approach in a small fraction of the computation time and with greatly reduced memory requirements. Their accuracy and computation time are compared for the purpose of evaluating a translation-invariant error metric. |
| Date of publication | 2008 |
| Code Programming Language | Python |
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