Ambient Illumination as a Context for Video Bit Rate Adaptation Decision Taking

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Nur Yılmaz G., Arachchi H. K., Dogan S., Kondoz A. M.

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, vol.20, no.12, pp.1887-1891, 2010 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 12
  • Publication Date: 2010
  • Doi Number: 10.1109/tcsvt.2010.2087490
  • Journal Name: IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1887-1891
  • Keywords: Adaptation decision taking, ambient illumination, motion activity, structural complexity, CONTOUR, QUALITY
  • TED University Affiliated: No

Abstract

In this letter, a new bit rate adaptation decision taking technique is proposed based on the observations that ambient illumination context has an effect on the perceived video quality. Motion activity and structural complexity characteristics of a video content are utilized as the content-related contexts in the proposed technique. Experimental results demonstrate that a significant amount of bit rate can be saved while maintaining the perceptual quality same by adapting the video content according to different ambient illumination conditions using this technique. Subjective assessment results show that the proposed adaptation technique is capable of exploiting the changes in ambient illumination level for bit rate adaptation without sacrificing the perceived visual quality.