Enhanced spatially interleaved DVC using diversity and selective feedback

N Anantrasirichai; D Agrafiotis; DR Bull

doi:10.1109/ICASSP.2009.4959684

Enhanced spatially interleaved DVC using diversity and selective feedback

N Anantrasirichai, D Agrafiotis, DR Bull

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

12 Citations (Scopus)

648 Downloads (Pure)

Abstract

Systems with cheap/simple/power efficient encoders but complex decoders make applications such as low cost, low power remote sensors practical. Bandwidth considerations however are still an issue and compression efficiency has to remain high. In this paper, we present a distributed video codec (DVC) that we are developing with the aim of achieving such a low power paradigm at the cost of only a small compression performance deficit relative to the current state of the art, H.264. The proposed system employs spatial interleaving of KEY and Wyner-Ziv data which allows efficient side information (SI) generation through block-based error concealment, a Gray code that increases the accuracy of bit probability estimation, and a diversity scheme that produces more reliable results by exploiting multiple SI generated data. Simulation results show an improvement of the proposed scheme over H.264 intra coding of up to 1.5 dB. We additionally propose two mechanisms for selective parity bit feedback requests that can further reduce the WZ bitrate by up to 15%

Translated title of the contribution	Enhanced spatially interleaved DVC using diversity and selective feedback
Original language	English
Title of host publication	IEEE International Conference on Acoustics, Speech and Signal Processing, 2009 (ICASSP 2009)
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	717 - 720
Number of pages	4
ISBN (Print)	9781424423538
DOIs	https://doi.org/10.1109/ICASSP.2009.4959684
Publication status	Published - Apr 2009
Event	2009 IEEE International Conference on Acoustics, Speech, and Signal Processing - Taipei, Taiwan Duration: 19 Apr 2009 → 24 Apr 2009

Publication series

Name
ISSN (Print)	15206149

Conference

Conference	2009 IEEE International Conference on Acoustics, Speech, and Signal Processing
Abbreviated title	ICASSP '09
Country/Territory	Taiwan
City	Taipei
Period	19/04/09 → 24/04/09

Bibliographical note

Rose publication type: Conference contribution

Additional information: With accompanying conference presentation

Sponsorship: This work was undertaken as part of EPSRC grant EP/E065538

Terms of use: Copyright © 2009 IEEE. Reprinted from IEEE International Conference on Acoustics, Speech and Signal Processing, 2009 (ICASSP 2009).

This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected].

By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Keywords

DVC
video coding
multi-hypothesis

Access to Document

10.1109/ICASSP.2009.4959684

Conference paperAccepted author manuscript, 231 KB
Accompanying conference presentationAccepted author manuscript, 382 KB

http://hdl.handle.net/1983/1547

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Cite this

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title = "Enhanced spatially interleaved DVC using diversity and selective feedback",

abstract = "Systems with cheap/simple/power efficient encoders but complex decoders make applications such as low cost, low power remote sensors practical. Bandwidth considerations however are still an issue and compression efficiency has to remain high. In this paper, we present a distributed video codec (DVC) that we are developing with the aim of achieving such a low power paradigm at the cost of only a small compression performance deficit relative to the current state of the art, H.264. The proposed system employs spatial interleaving of KEY and Wyner-Ziv data which allows efficient side information (SI) generation through block-based error concealment, a Gray code that increases the accuracy of bit probability estimation, and a diversity scheme that produces more reliable results by exploiting multiple SI generated data. Simulation results show an improvement of the proposed scheme over H.264 intra coding of up to 1.5 dB. We additionally propose two mechanisms for selective parity bit feedback requests that can further reduce the WZ bitrate by up to 15%",

keywords = "DVC, video coding, multi-hypothesis",

author = "N Anantrasirichai and D Agrafiotis and DR Bull",

note = "Rose publication type: Conference contribution Additional information: With accompanying conference presentation Sponsorship: This work was undertaken as part of EPSRC grant EP/E065538 Terms of use: Copyright {\textcopyright} 2009 IEEE. Reprinted from IEEE International Conference on Acoustics, Speech and Signal Processing, 2009 (ICASSP 2009). This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. ; 2009 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP '09 ; Conference date: 19-04-2009 Through 24-04-2009",

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language = "English",

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Anantrasirichai, N , Agrafiotis, D & Bull, DR 2009, Enhanced spatially interleaved DVC using diversity and selective feedback. in IEEE International Conference on Acoustics, Speech and Signal Processing, 2009 (ICASSP 2009). Institute of Electrical and Electronics Engineers (IEEE), pp. 717 - 720, 2009 IEEE International Conference on Acoustics, Speech, and Signal Processing, Taipei, Taiwan, 19/04/09. https://doi.org/10.1109/ICASSP.2009.4959684

Enhanced spatially interleaved DVC using diversity and selective feedback. / Anantrasirichai, N ; Agrafiotis, D ; Bull, DR.
IEEE International Conference on Acoustics, Speech and Signal Processing, 2009 (ICASSP 2009). Institute of Electrical and Electronics Engineers (IEEE), 2009. p. 717 - 720.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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N1 - Rose publication type: Conference contribution Additional information: With accompanying conference presentation Sponsorship: This work was undertaken as part of EPSRC grant EP/E065538 Terms of use: Copyright © 2009 IEEE. Reprinted from IEEE International Conference on Acoustics, Speech and Signal Processing, 2009 (ICASSP 2009). This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

PY - 2009/4

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N2 - Systems with cheap/simple/power efficient encoders but complex decoders make applications such as low cost, low power remote sensors practical. Bandwidth considerations however are still an issue and compression efficiency has to remain high. In this paper, we present a distributed video codec (DVC) that we are developing with the aim of achieving such a low power paradigm at the cost of only a small compression performance deficit relative to the current state of the art, H.264. The proposed system employs spatial interleaving of KEY and Wyner-Ziv data which allows efficient side information (SI) generation through block-based error concealment, a Gray code that increases the accuracy of bit probability estimation, and a diversity scheme that produces more reliable results by exploiting multiple SI generated data. Simulation results show an improvement of the proposed scheme over H.264 intra coding of up to 1.5 dB. We additionally propose two mechanisms for selective parity bit feedback requests that can further reduce the WZ bitrate by up to 15%

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M3 - Conference Contribution (Conference Proceeding)

SN - 9781424423538

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EP - 720

BT - IEEE International Conference on Acoustics, Speech and Signal Processing, 2009 (ICASSP 2009)

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - 2009 IEEE International Conference on Acoustics, Speech, and Signal Processing

Y2 - 19 April 2009 through 24 April 2009

ER -

Enhanced spatially interleaved DVC using diversity and selective feedback

Abstract

Publication series

Conference

Bibliographical note

Keywords

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