Book chapter

4D Ray-Space and Ultra-Wide Area FTV

Masayuki Tanimoto
Nagoya Industrial Science Research Institute, Japan

Hirokuni Kurokawa
University of Aizu, Japan


Ultra-wide area FTV is an FTV with very wide viewing zone where motion parallax is realized. 4D orthogonal ray-space is analyzed and applied to ultra-wide area FTV. Ray-space of “a group of rays through one point” is derived in 4D orthogonal ray-space. It is extended to obtain ray-space captured by linear arrangement cameras. View generation of ultra-wide area FTV needs rays that are not captured by real cameras. These rays are synthesized by interpolating the captured ray-space so that the intersections of the captured ray-space and the ray-space of rays emitted from a light source have the same color.
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Keywords: 4D Ray-Space, FTV, Free-Viewpoint Television



Pages: 100-107

Published by: Firenze University Press

Publication year: 2018

DOI: 10.36253/978-88-6453-707-8.24

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© 2018 Author(s)
Content licence CC BY 4.0
Metadata licence CC0 1.0


Publication year: 2018

DOI: 10.36253/978-88-6453-707-8.24

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© 2018 Author(s)
Content licence CC BY 4.0
Metadata licence CC0 1.0


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  2. Masayuki Tanimoto, “Free Viewpoint Television - FTV”, Picture Coding Symposium 2004, Special Session 5, December 2004.
  3. Masayuki Tanimoto, “Overview of Free Viewpoint Television,” Signal Processing: Image Communication, vol. 21, no. 6,pp. 454-461,July 2006.
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  5. Masayuki Tanimoto, Mehrdad Panahpour Tehrani, Toshiaki Fujii, Tomohiro Yendo, “FTV for 3-D Spatial Communication”, Proceedings of the IEEE, Vol. 100, No. 4, pp. 905-917 (April 2012). (invited paper)
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  10. T. Fujii, T. Kimoto, M. Tanimoto, "Ray Space Coding for 3D Visual Communication", Picture Coding Symposium '96, pp. 447-451, Mar. 1996.
  11. M. Tanimoto, A. Nakanishi, T. Fujii, T. Kimoto, "The Hierarchical Ray-Space for Scalable 3-D Image Coding", Picture Coding Symposium 2001, pp.81-84, April 2001.
  12. Toshiaki Fujii, Masayuki Tanimoto, "Free-Viewpoint TV System Based on Ray-Space Representation", SPIE ITCom 2002, Vol. 4864-22, pp.175-189, Aug. 2002.
  13. Masayuki Tanimoto and Hirokuni Kurokawa, “Omnidirectional FTV”, Proc. of 2017 International Conference on 3D Immersion, Brussels, Belgium, December 12, 2017.

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Cita come:
Tanimoto, M.; Kurokawa, H.; 2018; 4D Ray-Space and Ultra-Wide Area FTV. Firenze, Firenze University Press.


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