Biomedical subjects

Yusuke Sando

Publications and source records attributed to Yusuke Sando.

2 recordsLinked to original sources

PubMed2006

Fast calculation method for spherical computer-generated holograms.

The synthesis of spherical computer-generated holograms is investigated. To deal with the staggering calculation times required to synthesize the hologram, a fast calculation method for approximating the hologram distribution is proposed. In this method, the diffraction integral is approximated as a convolution integral, allowing computation using the fast-Fourier-transform algorithm. The principles of the fast calculation method, the error in the approximation, and results from simulations are presented.

Journal Article↗

PubMed2003

Holographic three-dimensional display synthesized from three-dimensional fourier spectra of real existing objects.

A method of synthesizing computer-generated holograms of real existing objects is proposed that is based on a series of projection images of an incoherently illuminated object recorded from different perspectives. In accordance with the principles of computer tomography, the three-dimensional Fourier spectrum of the object is calculated by use of several projection images. A method of calculating a Fresnel hologram from the three-dimensional Fourier spectrum is proposed. Experimental results in the form of a computer simulation and optical reconstruction are presented.

Journal Article↗