Advanced search
1 file | 834.25 KB
Author
Organization
Abstract
During the past decade, Distributed Video Coding (DVC) has emerged as a new video coding paradigm, shifting the complexity from the encoder-to the decoder-side. This paper addresses a problem of current DVC architectures that has not been studied in the literature so far, that is, the mismatch between the intra and Wyner-Ziv (WZ) quantization processes. Due to this mismatch, WZ rate is spent even for spatial regions that are accurately approximated by the side-information. As a solution, this paper proposes side-information generation using selective unidirectional motion compensation from temporally adjacent WZ frames. Experimental results show that the proposed approach yields promising WZ rate gains of up to 7% relative to the conventional method.
Keywords
Wyner-Ziv coding, quantization, Distributed Video Coding

Downloads

  • 2011.09 - ICIP 2011 - Jurgen Slowack et al. - Intra-WZ quantization mismatch in Distributed Video Coding.pdf
    • full text
    • |
    • open access
    • |
    • PDF
    • |
    • 834.25 KB

Citation

Please use this url to cite or link to this publication:

Chicago
Slowack, Jürgen, Jozef Skorupa, Peter Lambert, Rik Van de Walle, Nikos Deligiannis, and Adrian Munteanu. 2011. “Intra-WZ Quantization Mismatch in Distributed Video Coding.” In IEEE International Conference on Image Processing ICIP, 1645–1648. New York, NY, USA: IEEE.
APA
Slowack, J., Skorupa, J., Lambert, P., Van de Walle, R., Deligiannis, N., & Munteanu, A. (2011). Intra-WZ quantization mismatch in distributed video coding. IEEE International Conference on Image Processing ICIP (pp. 1645–1648). Presented at the 18th IEEE International Conference on Image Processing (ICIP), New York, NY, USA: IEEE.
Vancouver
1.
Slowack J, Skorupa J, Lambert P, Van de Walle R, Deligiannis N, Munteanu A. Intra-WZ quantization mismatch in distributed video coding. IEEE International Conference on Image Processing ICIP. New York, NY, USA: IEEE; 2011. p. 1645–8.
MLA
Slowack, Jürgen, Jozef Skorupa, Peter Lambert, et al. “Intra-WZ Quantization Mismatch in Distributed Video Coding.” IEEE International Conference on Image Processing ICIP. New York, NY, USA: IEEE, 2011. 1645–1648. Print.
@inproceedings{2076396,
  abstract     = {During the past decade, Distributed Video Coding (DVC) has emerged as a new video coding paradigm, shifting the complexity from the encoder-to the decoder-side. This paper addresses a problem of current DVC architectures that has not been studied in the literature so far, that is, the mismatch between the intra and Wyner-Ziv (WZ) quantization processes. Due to this mismatch, WZ rate is spent even for spatial regions that are accurately approximated by the side-information. As a solution, this paper proposes side-information generation using selective unidirectional motion compensation from temporally adjacent WZ frames. Experimental results show that the proposed approach yields promising WZ rate gains of up to 7\% relative to the conventional method.},
  author       = {Slowack, J{\"u}rgen and Skorupa, Jozef and Lambert, Peter and Van de Walle, Rik and Deligiannis, Nikos and Munteanu, Adrian},
  booktitle    = {IEEE International Conference on Image Processing ICIP},
  isbn         = {9781457713033},
  issn         = {1522-4880},
  keyword      = {Wyner-Ziv coding,quantization,Distributed Video Coding},
  language     = {eng},
  location     = {Brussels, Belgium},
  pages        = {1645--1648},
  publisher    = {IEEE},
  title        = {Intra-WZ quantization mismatch in distributed video coding},
  year         = {2011},
}

Web of Science
Times cited: