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We propose an algorithm for extracting the image of an object from the reconstructed image in the in-line digital holography using two holograms reported by Y. Zhang. In the proposed algorithm the non-diffraction wave can be analytically calculated by using the intensity of the reference wave and be removed from the reconstructed image. We confirmed the validity of the proposed algorithm by numerical...
We propose a parallel phase-shifting digital holography capable of simultaneously capturing both outside three-dimensional (3D) information of the object such as a surface of an object which human being can perceive (visible information) and internal 3D information of the object (invisible information) using a visible laser light and an invisible laser light. This technique can carry out phase-shifting...
We have proposed a single-shot two-step phase-shifting color digital holography and numerically shown the validity of the proposed method. The proposed method will contribute to 3-D measurement of moving color object.
The authors have demonstrated the moving picture of visible femtosecond laser pulse propagation in diffusive medium by using light-in-flight holography. This technique open the possibility for observing various ultrafast phenomenon in diffusive materials such as biological tissue or cells.
Parallel phase-shifting digital holography is a technique capable of instantaneous three-dimensional measurement and can simultaneously obtain the holograms required for phase-shifting digital holography. The number of phase shifts of the reference wave in holography is inversely proportional to the number of pixels per each hologram in the technique. The authors quantitatively evaluated the quality...
We propose a parallel phase-shifting digital holography as a technique capable of noiseless instantaneous applications for three-dimensional objects such as measurement and object recognition. The technique carries out the three-step-phase-shifting at a time using a phase-shifting array device located in the reference beam. The device is an array of three kinds of phase retarders. We numerically simulate...
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