Cost-distortion optimized unequal error protection for object-based video communications

Object-based video coding is a relatively new technique to meet the fast growing demand for interactive multimedia applications. Compared with conventional frame-based video coding, it consists of two types of source data: shape information and texture information. Recently, joint source-channel cod...

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Vydané v:IEEE transactions on circuits and systems for video technology Ročník 15; číslo 12; s. 1505 - 1516
Hlavní autori: Haohong Wang, Fan Zhai, Eisenberg, Y., Katsaggelos, A.K.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: New York, NY IEEE 01.12.2005
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:
Applied sciences
Broadcasting. Videocommunications. Audiovisual
Channels
Coding
Coding, codes
Costs
Differentiated service (DiffServ) network
Dynamic programming
Error correction codes
Errors
Exact sciences and technology
Information, signal and communications theory
Internet
joint source-channel coding
Lagrangian functions
lossy network
MPEG-4 standard
Multimedia
Multimedia communication
Multimedia communications
Narrowband
object-based video
Propagation losses
rate distortion
Shape
Signal and communications theory
Studies
Surface layer
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Testing
Texture
Transmission and modulation (techniques and equipments)
unequal error protection (UEP)
Video coding
Video communication
video communications
Videocommunications (networks and services)
wireless channel
Fading channels
Video coding
lossy network
Joint source-channel coding
Differentiated service (DiffServ) network
Wireless telecommunication
Rate distortion theory
object-based video
AWGN channels
rate distortion
unequal error protection (UEP)
Videocommunication
video communications
Service differentiation
wireless channel
Dynamic programming
Lagrangian method
MPEG-4 standard
ISSN:1051-8215, 1558-2205
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Popis
Shrnutí:Object-based video coding is a relatively new technique to meet the fast growing demand for interactive multimedia applications. Compared with conventional frame-based video coding, it consists of two types of source data: shape information and texture information. Recently, joint source-channel coding for multimedia communications has gained increased popularity. However, very limited work has been conducted to address the problem of joint source-channel coding for object-based video. In this paper, we propose a cost-distortion optimal unequal error protection (UEP) scheme for object-based video communications. Our goal is to achieve the best video quality (minimum total expected distortion) with constraints on transmission cost and delay in a lossy network environment. The problem is solved using Lagrangian relaxation and dynamic programming. The performance of the proposed scheme is tested using simulations of a narrow-band block-fading wireless channel with additive white Gaussian noise and a simplified differentiated services Internet channel. Experimental results indicate that the proposed UEP scheme can significantly outperform equal error protection methods.
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ISSN:1051-8215
1558-2205
DOI:10.1109/TCSVT.2005.857305