| EPSRC Reference: |
GR/M72838/01 |
| Title: |
ADAPTIVE MULTIPARTY AUDIO-VISUAL CONFERENCING OVER MOBILE PACKET NETWORKS |
| Principal Investigator: |
Kondoz, Professor A |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Sch of Electronics & Physical Sciences |
| Organisation: |
University of Surrey |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
06 January 2000 |
Ends: |
05 April 2003 |
Value (£): |
190,301
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| EPSRC Research Topic Classifications: |
| Digital Signal Processing |
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| EPSRC Industrial Sector Classifications: |
| Communications |
Creative Industries |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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Although mobile digital networks has rapid growths in recent years, the services they have provided have been restricted to speech, and low bit rate data. The upcoming introduction of new services such as general radio packet systems (GPRS) and enhanced bit rates for GSM evolution (EDGE) will greatly enhance the range of quality of services that can be offered to the users, while providing a path for migration to introduction of the 3rd generation UMTS networks. This project proposes to develop mechanisms that will allow for the operation of rate-adaptive multiparty audio-video communications over mobile packet networks, where the available user throughout is constantly varying due to varying channel conditions and network load. We propose to make use of the object-oriented video coding facilities offered by MPEG-4 to enable efficient prioritisation and mixing with the H.353 standard for multimedia communications to guarantee interworking capability across various networks. Algorithms will be designed for video bitstream rate adaptation, content base prioritisation schemes, spatial resampling, and stream segmentation and multiplexing. As all the media processing techniques will be carried out in the application layer, and generic bearers will be used, the techniques developed will be capable of providing H.323-based multimedia communications in UMTS.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.surrey.ac.uk |