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Optical Engineering

Reconstruction of stellar image by phase retrieval based on Fourier decomposition method
Author(s): Junji Ohtsubo; Yasusi Takahashi; Nobuharu Nakajima
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Paper Abstract

A new technique is proposed to reconstruct an astronomical image using 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 amplitude and phase in the Fourier space corresponding to the unfiltered image. Therefore, the phase information can be derived from the Fourier modulus ofthe filtered image based on the Fourier decomposition method described. This method is applied to stellar speckle interferometry and the successful reconstruction of a double star image is obtained.

Paper Details

Date Published: 1 September 1991
PDF: 5 pages
Opt. Eng. 30(9) doi: 10.1117/12.55930
Published in: Optical Engineering Volume 30, Issue 9
Show Author Affiliations
Junji Ohtsubo, Shizuoka Univ. (Japan)
Yasusi Takahashi, Shizuoka University (Japan)
Nobuharu Nakajima, Shizuoka Univ. (Japan)

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