title: Image reconstruction algorithm for recovering high-frequency information in parallel phase-shifting digital holography [Invited].
abstract: We propose an image reconstruction algorithm for recovering high-frequency information in parallel phase-shifting digital holography. The proposed algorithm applies three kinds of interpolations and generates three different kinds of object waves. A Fourier transform is applied to each object wave, and the spatial-frequency domain is divided into 3×3 segments for each Fourier-transformed object wave. After that the segment in which interpolation error is the least among the segments having the same address of the segment in the spatial-frequency domain is extracted. The extracted segments are combined to generate an information-enhanced spatial-frequency spectrum of the object wave, and after that the formed spatial-frequency spectrum is inversely Fourier transformed. Then the high-frequency information of the reconstructed image is recovered. The effectiveness of the proposed algorithm was verified by a numerical simulation and an experiment.
authors.affiliation: Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Kyoto 606-8585, Japan.
authors.forename: Peng
authors.initials: P
authors.lastname: Xia
authors.forename: Yuki
authors.initials: Y
authors.lastname: Shimozato
authors.forename: Tatsuki
authors.initials: T
authors.lastname: Tahara
authors.forename: Takashi
authors.initials: T
authors.lastname: Kakue
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Awatsuji
authors.forename: Kenzo
authors.initials: K
authors.lastname: Nishio
authors.forename: Shogo
authors.initials: S
authors.lastname: Ura
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Kubota
authors.forename: Osamu
authors.initials: O
authors.lastname: Matoba