Low-delay video control in a personal area network for augmented reality
Low-delay video control in a personal area network for augmented reality
- Author(s): R. Razavi ; M. Fleury ; M. Ghanbari
- DOI: 10.1049/iet-ipr:20070183
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- Author(s): R. Razavi 1 ; M. Fleury 1 ; M. Ghanbari 1
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View affiliations
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Affiliations:
1: Department of Computing and Electronic Systems, University of Essex, Colchester, UK
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Affiliations:
1: Department of Computing and Electronic Systems, University of Essex, Colchester, UK
- Source:
Volume 2, Issue 3,
June 2008,
p.
150 – 162
DOI: 10.1049/iet-ipr:20070183 , Print ISSN 1751-9659, Online ISSN 1751-9667
A personal area network (PAN) is a feature of an augmented reality system, transmitting modified video for real-time display. Low-delay communication of encoded video over a Bluetooth wireless PAN is achieved in favourable channel conditions by a combination of dynamic packetisation of video slices together with centralised and predictive rate control. The result is minimised packet delay (below 0.05 s) and high-quality 40 dB video, with packet loss limited to 4% from radio frequency noise. Where channel conditions result in error bursts, dynamic rate change is introduced to reduce the need for packet retransmission and improve power efficiency.
Inspec keywords: video communication; Bluetooth; augmented reality
Other keywords:
Subjects: Radio links and equipment; Multimedia communications; Virtual reality
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