Distributed video coding scheme of multimedia data compression algorithm for wireless sensor networks

The emergence of multimedia data has enriched people’s lives and work and has penetrated into education, finance, medical, military, communications, and other industries. The text data takes up a small space, and the network transmission speed is fast. However, due to its richness, the multimedia da...

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Veröffentlicht in:EURASIP journal on wireless communications and networking Jg. 2019; H. 1; S. 1 - 9
1. Verfasser: Ma, Ning
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Cham Springer International Publishing 01.12.2019
Springer Nature B.V
SpringerOpen
Schlagworte:
Algorithms
Codec
Coding
Communications Engineering
Data compression
Decoding
Distributed Big Data Processing in SCADA Communication Networks
Distributed video coding
Energy consumption
Engineering
High definition
Information Systems Applications (incl.Internet)
Military communications
Multimedia
Networks
Nodes
Region of interest
Remote sensors
Sensation multimedia network device
Sensors
Signal,Image and Speech Processing
Video compression
Wireless networks
Wireless sensor networks
Sensation multimedia network device
Region of interest
Data compression
Distributed video coding
ISSN:1687-1499, 1687-1472, 1687-1499
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Zusammenfassung:The emergence of multimedia data has enriched people’s lives and work and has penetrated into education, finance, medical, military, communications, and other industries. The text data takes up a small space, and the network transmission speed is fast. However, due to its richness, the multimedia data makes it occupy an ample space. Some high-definition multimedia information even reaches the GB level, and the multimedia data network transmission is relatively slow. Compared with the traditional scalar data, the multimedia data better describes the characteristics of the transaction, but at the same time, the multimedia data itself has a large capacity and must be compressed. Nodes of wireless multimedia sensor networks have limited ability to process data. Traditional data compression schemes require high processing power of nodes and are not suitable for sensor networks. Therefore, distributed video codec scheme in recent years becomes one of the hot multimedia sensor network technologies, which is a simple coding scheme, coding complexity of decoding performance. In this paper, distributed video codec and its associated knowledge based on the study present a distributed video coding scheme and its improvements. Aiming at the problem that the traditional distributed video coding scheme cannot accurately decode the motion severe region and the boundary region, a distributed video coding algorithm based on gradient-domain ROI is proposed, which can enhance the coding efficiency of the severe motion region and improve the decoded image while reducing the code rate and quality, ultimately reducing sensor node energy consumption.
Bibliographie:ObjectType-Article-1
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ISSN:1687-1499
1687-1472
1687-1499
DOI:10.1186/s13638-019-1571-5