A Joint Source-Channel Video Coding Scheme Based on Distributed Source Coding

Recently, several error resilient schemes have been proposed to tackle the error propagation problem in the motion-compensated predictive video coding based on a promising technique - distributed source coding (DSC). However, these schemes mainly apply the distributed source codes for channel error...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:IEEE transactions on multimedia Jg. 10; H. 8; S. 1648 - 1656
Hauptverfasser: Zhang, Yixuan, Zhu, Ce, Yap, Kim-Hui
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York, NY IEEE 01.12.2008
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
Applied sciences
Artificial intelligence
Automatic repeat request
Channel coding
Computer science; control theory; systems
Data compression
Decoding
Distributed source coding
Error correction codes
error propagation
error resilient compression
Exact sciences and technology
Forward error correction
joint source-channel video coding
Pattern recognition. Digital image processing. Computational geometry
Performance analysis
Predictive coding
Propagation
Source coding
Video coding
Capability index
Video coding
Source coding
Data compression
error resilient compression
joint source-channel video coding
Distributed source coding
error propagation
Image coding
Predictive coding
Motion compensation
Error correction
Growth of error
ISSN:1520-9210, 1941-0077
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Recently, several error resilient schemes have been proposed to tackle the error propagation problem in the motion-compensated predictive video coding based on a promising technique - distributed source coding (DSC). However, these schemes mainly apply the distributed source codes for channel error correction, while under-utilizing their capability for data compression. A channel-aware joint source-channel video coding scheme based on DSC is proposed to eliminate the error propagation problem in predictive video coding in a more efficient way. It is known that near Slepian-Wolf bound DSC is achieved using powerful channel codes, assuming the source and its reference (also known as side-information) are connected by a virtual error-prone channel. In the proposed scheme, the virtual and real error-prone channels are fused so that a unified single channel code is applied to encode the current frame thus accomplishing a joint source-channel coding. Our analysis of the rate efficiency in recovering error propagation shows that the joint scheme can achieve a lower rate compared with performing source and channel coding separately. Simulation results show that the number of bits used for recovering from error propagation can be reduced by up to 10% using the proposed scheme compared to Sehgal-Jagmohan-Ahuja's DSC-based error resilient scheme.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1520-9210
1941-0077
DOI:10.1109/TMM.2008.2007324