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arXiv · 0804.0527

Harmonic Inpainting of the Cosmic Microwave Background Sky: Formulation and Error Estimate

Kaiki Taro Inoue·Paolo Cabella·Eiichiro Komatsu
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Abstract

We develop a new interpolation scheme, based on harmonic inpainting, for reconstructing the cosmic microwave background temperature data within the Galaxy mask from the data outside the mask. We find that, for scale-invariant isotropic random Gaussian fluctuations, the developed algorithm reduces the errors in the reconstructed map for the odd-parity modes significantly for azimuthally symmetric masks with constant galactic latitudes. For a more realistic Galaxy mask, we find a modest improvement in the even-parity modes as well.

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Kaiki Taro Inoue, Paolo Cabella, Eiichiro Komatsu. 2008-06-28. Harmonic Inpainting of the Cosmic Microwave Background Sky: Formulation and Error Estimate. https://doi.org/10.1103/physrevd.77.123539

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