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MJPEG Real-Time Transmission in Industrial Environments Using a CBR Channel

Title
MJPEG Real-Time Transmission in Industrial Environments Using a CBR Channel
Type
Article in International Conference Proceedings Book
Year
2006
Authors
Silvestre, J
(Author)
Other
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Marau, R
(Author)
Other
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Pedreiras, P
(Author)
Other
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Conference proceedings International
Pages: 149-+
Conference of the World-Academy-of-Science-Engineering-and-Technology
Venice, ITALY, NOV 24-26, 2006
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Publicação em ISI Web of Knowledge ISI Web of Knowledge - 0 Citations
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Authenticus ID: P-00P-3PJ
Abstract (EN): Currently, there are many local area industrial networks that can give guaranteed bandwidth to synchronous traffic, particularly providing CBR channels (Constant Bit Rate), which allow improved bandwidth management. Some of such networks operate over Ethernet, delivering channels with enough capacity, specially with compressors, to integrate multimedia traffic in industrial monitoring and image processing applications with many sources. In these industrial environments where a low latency is an essential requirement, JPEG is an adequate compressing technique but it generates VBR traffic (Variable Bit Rate). Transmitting VBR traffic in CBR channels is inefficient and current solutions to this problem significantly increase the latency or further degrade the quality. In this paper an R(q) model is used which allows on-line calculation of the JPEG quantification factor. We obtained increased quality, a lower requirement for the CBR channel with reduced number of discarded frames along with better use of the channel bandwidth.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 3
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Dynamic QoS management for multimedia real-time transmission in industrial environments (2007)
Article in International Conference Proceedings Book
Silvestre, J; Luis Almeida; Marau, R; Pedreiras, P
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