Precise correction of lateral chromatic aberration in images

Abstract : This paper addresses the problem of lateral chromatic aberration correction in images through color planes warping. We aim at high precision (largely sub-pixel) realignment of color channels. This is achieved thanks to two ingredients: high precision keypoint detection, which in our case are disk centers, and more general correction model than what is commonly used in the literature, radial polynomial. Our setup is quite easy to implement, requiring a pattern of black disks on white paper and a single snapshot. We measure the errors in terms of geometry and of color and compare our method to three different software programs. Quantitative results on real images show that our method allows alignment of average 0.05 pixel of color channels and a residual color error divided by a factor 3 to 6.
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Communication dans un congrès
R. Klette, M. Rivera, and S. Satoh. PSIVT, Oct 2013, Guanajuato, Mexico. Springer, 8333, pp.12-22, 2013, Lecture Notes in Computer Science
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Dernière modification le : jeudi 11 janvier 2018 - 06:20:22
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  • HAL Id : hal-00858703, version 1

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Victoria Rudakova, Pascal Monasse. Precise correction of lateral chromatic aberration in images. R. Klette, M. Rivera, and S. Satoh. PSIVT, Oct 2013, Guanajuato, Mexico. Springer, 8333, pp.12-22, 2013, Lecture Notes in Computer Science. 〈hal-00858703〉

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