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This paper introduces two approaches for 3D visual systems toward ultra-realistic communication. The first system uses integral photography to capture ray information at slightly separated locations. The second system uses camera array that includes 300 cameras to capture ray information at more sparse locations than integral photography. Both systems use electronic holography as an ideal 3D display. Since spatial light modulators are currently inadequate specifications for electronic holography, the setup to remove disturbing light is necessary, which we implemented in both systems.