IEIE Transactions on Smart Processing and Computing

The Institute of Electronics and Information Engineers (대한전자공학회)
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Compression Efficiency Evaluation for Virtual Reality Videos by Projection Scheme

  • Kim, Byeong Chul (Department of Information and Communication, Inha University) ;
  • Rhee, Chae Eun (Department of Information and Communication, Inha University)
  • Received : 2017.03.13
  • Accepted : 2017.03.24
  • Published : 2017.04.30
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Abstract

Videos for 360-degree virtual reality (VR) systems have a large amount of data because they are made with several different videos from multiple cameras. To store the VR data in limited space or to transmit it through a channel with limited bandwidth, the data need to be compressed at a high ratio. This paper focuses on the compression efficiency of VR videos for good visual quality. Generally, 360-degree VR videos should be projected into the planer format to cope with modern video coding standards. Among various projection schemes, three typical schemes (equirectangular, line-cubic, and cross-cubic) are selected and compared in terms of compression efficiency and quality using various videos.

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References

  1. C.-W. Fu, "The Rhombic Dodecahedron Map: An Efficient Scheme for Encoding Panoramic Video," IEEE Transactions on Multimedia, vol. 11, no. 4, pp. 634-644, Jun. 2009. https://doi.org/10.1109/TMM.2009.2017626
  2. W.-H. Leung, "Compression with mosaic prediction for image-based rendering applications," in Prof. of IEEE International Conference on Multimedia and Expo, Aug. 2000.
  3. K.-T. Ng, S.-C. Chan, H.-Y. Shum, "Data Compression and Transmission Aspects of Panoramic Videos," IEEE Transactions on Circuits and Systems for Video Technology, vol. 15, no. 1, pp. 82-95, Jan. 2005. https://doi.org/10.1109/TCSVT.2004.839989
  4. S. N. Akula, A. Singh, A. Dsouza, R.K. K, C. Pujara, R.N. Gadde, V. Zakharchenko, E. Alshina, K.P.Choi, "AHG8: Efficient Frame Packing for Icosahedral Projection," JVET-E0029, 5th Meeting, Jan. 2017.
  5. G. Van der Auwera, M. Coban,Hendry, M. Karczewicz (Qualcomm), "AHG8: Truncated Square Pyramid Projection (TSP) For 360 Video", Joint Video Exploration Team of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11, JVET-D0071, 4th Meeting, Oct. 2016.
  6. C. Zhang, Y. Lu, J. Li, Z. Wen, "AHG8: Segmented Sphere Projection for 360-degree video," Joint Video Exploration Team of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11, JVET-E0025 5th Meeting, Jan. 2017.
  7. Y. He, B. Vishwanath, X. Xiu,Y. Ye (InterDigital), "AHG8: InterDigital's projection format conversion tool", Joint Video Exploration Team of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11, JVET-D0021, 4th Meeting, Oct. 2016.
  8. M. Yu, H. Lakshman, B. Girod, "A Framework to Evaluate Omnidirectional Video Coding Schemes," in Prof. of IEEE International Symposium on Mixed and Augmented Reality, Oct. 2015.