DOI QR코드

DOI QR Code

Integrating Multi-view Stereoscopic Transmission System into MPEG-21 DIA (Digital Item Adaptation)

  • ;
  • ;
  • ;
  • 박일권 (연세대학교 컴퓨터과학과)
  • Published : 2007.07.29

Abstract

In general multi-view system, all the view sequences acquired at the server are transmitted to the client. However, this kind of system requires high processing power of the server as well as the client, thus it is posing a difficulty in practical applications. To overcome this problem, a relatively simple method is to transmit only two view-sequences requested by the client in order to deliver a stereoscopic video. In this system, effective communication between the server and the client is one of important aspects. Therefore, we propose an efficient multi-view system that transmits two view-sequences according to user's request. The view selection process is integrated into MPEG-21 DIA (Digital Item Adaptation) so that our system is compatible to MPEG-21 multimedia framework. Furthermore, multi-view descriptors related to multi-view camera and systems are newly introduced. The syntax of the descriptions and their elements is represented in XML (extensible Markup Language) schema. Intermediate view reconstruction (IVR) is used to reduce such discomfort with excessive disparity. Furthermore, IVR is useful for smooth transition between two stereoscopic view sequences. Finally, through the implementation of testbed, we can show the valuables and possibilities of our system.

Keywords

References

  1. Meesters, Lydia MJ., IJsselsteijn, Wijnan A., Seuntiens, Pieter J.H., 'A survey of perceptual evaluations and requirements of three-dimensional TV', IEEE Transactions on Circuits and Systems for Video Technology, Vol. 14, No.3, pp. 381-391, 2004 https://doi.org/10.1109/TCSVT.2004.823398
  2. 'MPEG-21 Overview V.4', ISO/IEC JTC1/SC29/ WG11 N4801, May 2002
  3. HS Sohn, HS Kim and MB Kim, 'MPEG-21 DIA Testbed for Stereoscopic Adaptation of Digital Items,' LNCS (vol. 3333) PCM2004, 449-456, 2004
  4. IETF RFC 1889, RTP: A Transport Protocol for Real-Time Applications, January 1996
  5. IETF RFC 2326, RTSP: Real Time Streaming Protocol (RTSP), January 1996
  6. Serdar Ince, 'Correspondence Estimation and Intermediate View Reconstruction', Boston University, Department of Electrical and Computer Engineering Technical Report No. ECE-2004-01
  7. C. L. Zitnick, S. B. Kang, M. Uyttendaele, S. A. J. Winder, and R. Szeliski, 'High-quality Video View Interpolation Using a Layered Representation,'ACM SIGGRAPH and ACM Trans. on Graphics Aug. 2004
  8. D. Scharstein, and R. Szeliski, 'A taxonomy and evaluation of dense two-frame stereo correspondence algorithms'. International Journal of Computer Vision 47, 1, 7-42. 2002 https://doi.org/10.1023/A:1014573219977