title: Hidden surface removal of computer-generated holograms for arbitrary diffraction directions.
abstract: A fast calculation method for computer-generated holograms for hidden surface removal is proposed. In this method, a three-dimensional object is considered as a set of point light sources emitting light rays. To achieve the hidden surface removal, only appropriate light rays are selected according to their geometrical position, which are then converted into a Fourier spectrum of the wavefront. After the Fourier spectrum on the spherical surface is obtained, diffraction in arbitrary directions is calculated. Numerical simulation of a series of diffracted wavefronts onto arbitrary observation planes has been demonstrated to verify the effectiveness of our proposal.
authors.affiliation: Center for Optical Research & Education, Utsunomiya University, Tochigi, Japan. sando@tri-osaka.jp
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Sando
authors.forename: Daisuke
authors.initials: D
authors.lastname: Barada
authors.forename: Toyohiko
authors.initials: T
authors.lastname: Yatagai