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Intra-WZ quantization mismatch in distributed video coding

Jürgen Slowack UGent, Jozef Skorupa UGent, Peter Lambert UGent, Rik Van de Walle UGent, Nikos Deligiannis and Adrian Munteanu (2011) IEEE International Conference on Image Processing ICIP. In IEEE International Conference on Image Processing ICIP p.1645-1648
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.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
Wyner-Ziv coding, quantization, Distributed Video Coding
in
IEEE International Conference on Image Processing ICIP
series title
IEEE International Conference on Image Processing ICIP
issue title
2011 18th international conference on image processing (ICIP)
pages
1645 - 1648
publisher
IEEE
place of publication
New York, NY, USA
conference name
18th IEEE International Conference on Image Processing (ICIP)
conference location
Brussels, Belgium
conference start
2011-09-11
conference end
2011-09-14
Web of Science type
Proceedings Paper
Web of Science id
000298962501193
ISSN
1522-4880
ISBN
9781457713033
language
English
UGent publication?
yes
classification
P1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2076396
handle
http://hdl.handle.net/1854/LU-2076396
date created
2012-03-28 15:18:33
date last changed
2012-08-09 12:50:43
@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},
}

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.