Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지

A ROI Based Rate Control Algorithm in H.264|AVC Optimized for Video Telephony

영상통화에 최적화된 관심영역 기반 H.264|AVC 비트 율 제어 방법

  • Kim, Chang-Hee (School of Engineering, Information and Communication University) ;
  • Lim, Jeong-Yeon (Core Network Development Team, Institute of Network Technology, SK Telecom) ;
  • Joo, Young-Ho (Core Network Development Team, Institute of Network Technology, SK Telecom) ;
  • Kim, Ki-Mun (Core Network Development Team, Institute of Network Technology, SK Telecom) ;
  • Byun, Jae-Woan (Core Network Development Team, Institute of Network Technology, SK Telecom) ;
  • Kim, Mun-Churl (School of Engineering, Information and Communication University)
  • 김창희 (한국정보통신대학교 공학부) ;
  • 임정연 (SK 텔레콤 네트웍 기술원, 코어망 개발팀) ;
  • 주영호 (SK 텔레콤 네트웍 기술원, 코어망 개발팀) ;
  • 김기문 (SK 텔레콤 네트웍 기술원, 코어망 개발팀) ;
  • 변재완 (SK 텔레콤 네트웍 기술원, 코어망 개발팀) ;
  • 김문철 (한국정보통신대학교 공학부)
  • Published : 2008.06.18
Download PDF
⟨ Previous Next ⟩

Abstract

Visual quality of video telephony over 3G networks is not satisfactory due to limited bandwidths. Therefore, it is worthwhile to enhance subjective visual quality based on ROI coding. In this paper, we propose a rate-control algorithm for video telephony with ROI based H.264|AVC coding. The QP values are increasingly assigned in non-ROI away from the ROI so that graceful degradation of visual quality can be achieved, which is more visually pleasant.

Keywords