Blind correction of lens aberration using Zernike moments

The quality of the image formed by an optical system is reduced by aberrations. This paper points out and attempts to correct blind of lens aberration. To this end Zernike moments introduced for presenting lens aberration model within which their coefficients are estimated through polyspectral analysis. The model parameters are divided into asymmetric and symmetric which are estimated through bicoherence and tricoherence respectively. The obtained precision compares favorably to the aberration given by state of the art ployspectral analysis and reaches a RMSE of 0.1 pixels.

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