Fumio Okano

Summary

Country: Japan

Publications

  1. ncbi request reprint Optical shifter for a three-dimensional image by use of a gradient-index lens array
    Fumio Okano
    NHK, Science and Technical Research Laboratories, Tokyo, Japan
    Appl Opt 41:4140-7. 2002
  2. ncbi request reprint Wave optical analysis of integral method for three-dimensional images
    Fumio Okano
    NHK Science and Technical Research Laboratories, Tokyo, Japan
    Opt Lett 32:364-6. 2007
  3. ncbi request reprint Optical screen for direct projection of integral imaging
    Makoto Okui
    Science and Technical Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo, Japan
    Appl Opt 45:9132-9. 2006
  4. ncbi request reprint Integral three-dimensional television using a 2000-scanning-line video system
    Jun Arai
    Science and Technical Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo 157 8510, Japan
    Appl Opt 45:1704-12. 2006
  5. ncbi request reprint Moire fringe reduction by optical filters in integral three-dimensional imaging on a color flat-panel display
    Makoto Okui
    Science and Technical Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo
    Appl Opt 44:4475-83. 2005
  6. ncbi request reprint Geometric analysis of spatial distortion in projection-type integral imaging
    Masahiro Kawakita
    Japan Broadcasting Corporation NHK Science, and Technical Research Laboratories, Tokyo, Japan
    Opt Lett 33:684-6. 2008
  7. ncbi request reprint Depth-control method for integral imaging
    Jun Arai
    Science and Technical Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo, Japan
    Opt Lett 33:279-81. 2008
  8. ncbi request reprint Microlens arrays for integral imaging system
    Jun Arai
    Science and Technical Research Laboratories, the NHK Japan Broadcasting Corporation, Tokyo, Japan
    Appl Opt 45:9066-78. 2006
  9. ncbi request reprint Geometrical effects of positional errors in integral photography
    Jun Arai
    Science and Technical Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo 157 8510, Japan
    J Opt Soc Am A Opt Image Sci Vis 21:951-8. 2004
  10. ncbi request reprint Effects of focusing on the resolution characteristics of integral photography
    Jun Arai
    Science and Technical Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo 157 8510, Japan
    J Opt Soc Am A Opt Image Sci Vis 20:996-1004. 2003

Collaborators

Detail Information

Publications13

  1. ncbi request reprint Optical shifter for a three-dimensional image by use of a gradient-index lens array
    Fumio Okano
    NHK, Science and Technical Research Laboratories, Tokyo, Japan
    Appl Opt 41:4140-7. 2002
    ..The two lens arrays are positioned at a suitable distance, so that orthoscopic 3D images with the correct depth are formed in front of the lens array...
  2. ncbi request reprint Wave optical analysis of integral method for three-dimensional images
    Fumio Okano
    NHK Science and Technical Research Laboratories, Tokyo, Japan
    Opt Lett 32:364-6. 2007
    ..Therefore the modulation transfer function of this integral method is given by that of a single elemental lens...
  3. ncbi request reprint Optical screen for direct projection of integral imaging
    Makoto Okui
    Science and Technical Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo, Japan
    Appl Opt 45:9132-9. 2006
    ..The projector itself does not need an additional optical system. We report on the results of an experiment carried out to confirm the validity of the proposed method...
  4. ncbi request reprint Integral three-dimensional television using a 2000-scanning-line video system
    Jun Arai
    Science and Technical Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo 157 8510, Japan
    Appl Opt 45:1704-12. 2006
    ..5 times the density to improve further the picture quality of the reconstructed image. Through comparison an image near the lens array can be reconstructed at -1.9 times the spatial frequency, and the viewing angle is -1.5 times as wide...
  5. ncbi request reprint Moire fringe reduction by optical filters in integral three-dimensional imaging on a color flat-panel display
    Makoto Okui
    Science and Technical Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo
    Appl Opt 44:4475-83. 2005
    ..We describe a way to design these filters with moire's residual energy and video signal energy as indices and demonstrate the validity of the model, which combines two filters to reduce moire fringes...
  6. ncbi request reprint Geometric analysis of spatial distortion in projection-type integral imaging
    Masahiro Kawakita
    Japan Broadcasting Corporation NHK Science, and Technical Research Laboratories, Tokyo, Japan
    Opt Lett 33:684-6. 2008
    ..As a result, we clarified that 3D images that were reconstructed far from the lens array were largely affected, and that the reconstructed images were significantly distorted in the depth direction at the corners of the displayed images...
  7. ncbi request reprint Depth-control method for integral imaging
    Jun Arai
    Science and Technical Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo, Japan
    Opt Lett 33:279-81. 2008
    ..The optical reconstruction of 3D images at the desired depth by the second elemental images is confirmed experimentally...
  8. ncbi request reprint Microlens arrays for integral imaging system
    Jun Arai
    Science and Technical Research Laboratories, the NHK Japan Broadcasting Corporation, Tokyo, Japan
    Appl Opt 45:9066-78. 2006
    ..The results of the experiment confirm that the system produces orthoscopic images in real time, and thus is effective for real-time application of the II method...
  9. ncbi request reprint Geometrical effects of positional errors in integral photography
    Jun Arai
    Science and Technical Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo 157 8510, Japan
    J Opt Soc Am A Opt Image Sci Vis 21:951-8. 2004
    ..As a result, it is shown that a 3-D image is separated by local positional errors and blurred by global positional errors. In both local and global positional errors, 3-D images reconstructed far from the lens array are greatly affected...
  10. ncbi request reprint Effects of focusing on the resolution characteristics of integral photography
    Jun Arai
    Science and Technical Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo 157 8510, Japan
    J Opt Soc Am A Opt Image Sci Vis 20:996-1004. 2003
    ..The results show that, with focusing set at infinity, IP can provide three-dimensional images without remarkable resolution degradation over a wide range of depth...
  11. ncbi request reprint Viewing-zone enlargement method for sampled hologram that uses high-order diffraction
    Tomoyuki Mishina
    Science and Technical Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo
    Appl Opt 41:1489-99. 2002
    ..Finally, we show that the viewing zone can be enlarged by combining these high-order reconstructed beams from the hologram with aliasing...
  12. ncbi request reprint Calculation of holograms from elemental images captured by integral photography
    Tomoyuki Mishina
    Science and Technical Laboratories, Japan Broadcasting Corporation, Kinuta, Tokyo, Japan
    Appl Opt 45:4026-36. 2006
    ..Finally, by optical experiments, we confirm that three-dimensional images can be reconstructed from holograms calculated from an integral photograph of a real object captured with an IP camera...
  13. doi request reprint Integral three-dimensional image capture equipment with closely positioned lens array and image sensor
    Jun Arai
    Science and Technology Research Laboratories, NHK Japan Broadcasting Corporation, Tokyo, Japan
    Opt Lett 38:2044-6. 2013
    ..The reconstructed 3D images were found to have appropriate motion parallax. ..