PErceptual Quality Adaptation (PQA) algorithm for 3GP and multi-tracked MPEG-4 content over wireless IP networks

Nicola Cranley, Liam Murphy, Philip Perry

Research output: Contribution to conferencePaper

3 Citations (Scopus)

Abstract

Many adaptive delivery mechanisms have been devised for streaming multimedia over best-effort IP networks, such as the Internet. Most of these adaptive schemes do not consider the user's perception of quality when making adaptations. We describe a Perceptual Quality Adaptation algorithm (PQA) and prototype system architecture that uses knowledge of user perceived quality to make adaptation decisions using an optimum adaptation trajectory. This optimum adaptation trajectory indicates how encoding quality should be adapted (upgraded/downgraded) with respect to user perceived quality in response to rapidly fluctuating network conditions. We present simulation results that demonstrate the behavior of a perceptual quality adaptation algorithm.

Original languageEnglish
Pages2107-2112
Number of pages6
Publication statusPublished - 1 Dec 2004
Event2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2004 - Barcelona, Spain
Duration: 5 Sep 20048 Sep 2004

Conference

Conference2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2004
CountrySpain
CityBarcelona
Period5/09/048/09/04

Keywords

  • 3GP
  • Adaptation algorithm
  • MPEG-4
  • Multimedia
  • Perception
  • Quality

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    Cranley, N., Murphy, L., & Perry, P. (2004). PErceptual Quality Adaptation (PQA) algorithm for 3GP and multi-tracked MPEG-4 content over wireless IP networks. 2107-2112. Paper presented at 2004 IEEE 15th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2004, Barcelona, Spain.