Journal of Broadcast Engineering (방송공학회논문지)

The Korean Institute of Broadcast and Media Engineers (한국방송∙미디어공학회)
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Scalable Video Coding Using Large Block and its Performance Analysis

Large Block을 적용한 SVC 부호화 및 성능분석

  • Park, Un-Ki (School of Elec., Telecom. & Comp. Eng., Korea Aerospace Univ.) ;
  • Choi, Haechul (Dept. of Info. and Comm. Eng., Hanbat National Univ.) ;
  • Kang, Jung Won (Realistic Media Research Team, ETRI) ;
  • Kim, Jae-Gon (School of Elec., Telecom. & Comp. Eng., Korea Aerospace Univ.)
  • 박운기 (한국항공대학교 항공전자 및 정보통신공학부) ;
  • 최해철 (한밭대학교 정보통신공학과) ;
  • 강정원 (한국전자통신연구원 방통융합미디어연구부 실감미디어연구실) ;
  • 김재곤 (한국항공대학교 항공전자 및 정보통신공학부)
  • Received : 2012.12.31
  • Accepted : 2013.02.07
  • Published : 2013.03.30
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Abstract

Recently, High-Efficiency Video Coding (HEVC) has been developed as a new video coding standard mainly focusing on the coding of ultra high definition (UHD) videos as the high resolution and high quality videos are getting more popular. Furthermore, the scalable extension of HEVC is being standardized for more efficient provision of HD and UHD services in the communications-broadcasting convergence environment. In this paper, we propose an improved scalable video coding method of H.264/AVC to achieve high coding efficiency particularly for UHD and HD videos. The basic idea is to allow large block size in H.264/AVC SVC, which results in more efficient inter-layer prediction and syntax elements coding. The experimental results show that it achieves an average 4.53% reduction in BD-rate relative to H.264/AVC SVC.

고해상도의 고품질 비디오 서비스가 보편화됨에 따라 최근 초고해상도(UHD) 비디오 부호화를 위한 HEVC(High Efficiency Video Coding) 표준이 마무리되었으며, 향후 융합환경에서 HD 및 UHD 비디오를 동시에 제공하기 위한 스케일러블 확장 HEVC 표준화도 진행되고 있다. 본 논문에서는 UHD/HD 비디오를 동시에 제공하기 위한 H.264/SVC의 확장 부호화 기법을 제시한다. 즉, HEVC의 대표적인 부호화 툴인 Large Block 개념을 H.264/SVC에 적용함으로써 계층간 예측 및 신택스 부호화 등의 부호화 효율성을 개선한 부호화 기법을 제시하고 그 부호화 성능을 분석한다. 실험결과 Large Block을 적용한 SVC가 기존의 H.264/SVC에 비하여 평균 4.53% 내외의 비트 감소의 이득이 있음을 확인하였다.

Keywords

References

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  2. Complexity Reduction of HEVC SAO Intra Modes By Adjustment of Offset Values vol.19, pp.3, 2014, https://doi.org/10.5909/JBE.2014.19.3.355
  3. Edge and Relative RMD Cost based Fast Intra Prediction Mode Decision in HEVC vol.51, pp.10, 2014, https://doi.org/10.5573/ieie.2014.51.10.154