Reconstruction Of Double Star Image By Phase Retrieval Based On Fourier Series Expansion

Junji Ohtsubo; Yasusi Takahasi; Nobuharu Nakajima

doi:10.1117/12.961309

3 April 1989 Reconstruction Of Double Star Image By Phase Retrieval Based On Fourier Series Expansion

Junji Ohtsubo, Yasusi Takahasi, Nobuharu Nakajima

Proceedings Volume 1121, Interferometry '89; (1989) https://doi.org/10.1117/12.961309
Event: Interferometry '89, 1989, Warsaw, Poland

Abstract

A new, technique is proposed to reconstruct an astronomical image by using a phase retrieval from exponential filtered and unfiltered images based on the Fourier series expansion method. The amplitude of the Fourier transform of the filtered image is a mixture of the information of the Fourier amplitude and phase corresponding to the unfiltered image. Therefore, the phase information can be derived from the Fourier modulus of the filtered image based on the Fourier decomposition method. We have tried to apply this method to stellar speckle interferometry and the successful reconstruction of a double star image has been obtained.

Citation Download Citation

Junji Ohtsubo, Yasusi Takahasi, and Nobuharu Nakajima "Reconstruction Of Double Star Image By Phase Retrieval Based On Fourier Series Expansion", Proc. SPIE 1121, Interferometry '89, (3 April 1989); https://doi.org/10.1117/12.961309

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KEYWORDS

Image filtering

Stars

Fourier transforms

Image retrieval

Image restoration

Phase retrieval

Speckle interferometry

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