Effects of the eencoding scheme on the perceived compressed video quality transmitted over lossy IP networks

Ron Shmueli, Ofer Hadar, Revital Huber, Masha Maltz, Merav Huber

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper we analyze the viewer-perceived quality of a compressed video stream, which is transmitted over a lossy IP network with QoS (quality of service) mechanism. We demonstrate that when jointly considering the impact of coding bit rate, packet loss ratio and video characteristics, there is an optimal encoding scheme, which maximizes the viewer-perceived quality. The video content, the compression and the transmission are represented in a vector X of d parameters. Based on the subjective tests, we obtain a set of observation pairs of labeled samples Pi = {Xi,Qi}, where Qi is the quality class related to the vector of input parameters Xi. We introduce a novel method to predict the optimal encoding scheme based on canonical discriminant analysis (CDA) for feature classification.

Original languageEnglish
Title of host publicationITRE 2006 - 4th International Conference on Information Technology
Subtitle of host publicationResearch and Education, Proceedings
PublisherIEEE Computer Society
Pages227-232
Number of pages6
ISBN (Print)1424408598, 9781424408597
DOIs
StatePublished - 1 Jan 2006
EventITRE 2006 - 4th International Conference on Information Technology: Research and Education - Tel-Aviv, Israel
Duration: 17 Oct 200618 Oct 2006

Publication series

NameITRE 2006 - 4th International Conference on Information Technology: Research and Education, Proceedings

Conference

ConferenceITRE 2006 - 4th International Conference on Information Technology: Research and Education
Country/TerritoryIsrael
CityTel-Aviv
Period17/10/0618/10/06

Keywords

  • CDA
  • Compression
  • Encoding scheme
  • IP
  • MANOVA
  • MPEG
  • PLR
  • Perceived quality
  • Subjective testing
  • Subjective tests
  • Video QoS
  • Video quality

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