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Overview and Performance Analysis of the Emerging Scalable Video Coding

스케일러블 비디오 부호화의 개요 및 성능 분석

  • Choi, Hae-Chul (ETRI, Radio & Broadcasting Research Division, Broadcasting Media Research Group) ;
  • Lee, Kyung-Il (ETRI, Radio & Broadcasting Research Division, Broadcasting Media Research Group) ;
  • Kang, Jung-Woo (ETRI, Radio & Broadcasting Research Division, Broadcasting Media Research Group) ;
  • Bae, Seong-Jun (ETRI, Radio & Broadcasting Research Division, Broadcasting Media Research Group) ;
  • Yoo, Jeong-Ju (ETRI, Radio & Broadcasting Research Division, Broadcasting Media Research Group)
  • 최해철 (한국전자통신연구원 전파방송연구단 방송미디어연구그룹) ;
  • 이경일 (한국전자통신연구원 전파방송연구단 방송미디어연구그룹) ;
  • 강정원 (한국전자통신연구원 전파방송연구단 방송미디어연구그룹) ;
  • 배성준 (한국전자통신연구원 전파방송연구단 방송미디어연구그룹) ;
  • 유정주 (한국전자통신연구원 전파방송연구단 방송미디어연구그룹)
  • Published : 2007.11.30

Abstract

Seamless streaming of multimedia content via heterogeneous networks to viewers using a variety of devices has been a desire for many multimedia services, for which the multimedia contents should be adapted to usage environments such as network characteristics, terminal capabilities, and user preferences. Scalability in video coding is one of attractive features to meet dynamically changing requirements of heterogeneous networks. Currently a new scalable video coding (SVC) is standardizing in the Joint Video Team (JVT) of the ISO/IEC Moving Picture Experts Group (MPEG) and the ITU-T Video Coding Experts Group (VCEG), which will be released as Extension 3 of H.264/MPEG-4 AVC. In this paper, we introduce new technologies of SVC and evaluate performance of it especially regarding on overhead bit-rate and coding efficiency to support spatial, temporal, and quality scalability.

근래의 무선망 및 인터넷의 초고속화에 따라 풍부한 멀티미디어에 대한 사용자의 요구가 증대되고 있으며, 이동 통신의 활성화 및 DMB(Digital Media Broadcasting)와 같은 통방융합 서비스의 등장으로 여러 네트워크 망을 통해 다양한 성능을 가진 단말로의 멀티미디어 서비스가 이루어지고 있다. 이러한 환경 변화에 따라 비트율을 줄이기 위한 비디오 압축 부호화 기술뿐만 아니라 시변의 전송 조건, 전송망 특성, 다양한 단말 성능, 사용자 선호도 등에 대한 비디오의 적응 기술에 관심이 모아졌으며, 그 결과 ISO/IEC MPEG(Moving Picture Experts Group) 및 ITU-T VCEG(Video Coding Experts Group)의 JVT(Joint Video Team)에서는 비디오 부호화의 스케일러빌러티(scalbility)를 제공하기 위한 SVC(Scalable Video Coding) 표준화를 진행하였다. 본 논문에서는 공간/시간/화질적 스케일러빌러티를 지원하기 위한 SVC의 대표적 표준 기술들에 대해 설명하고, 기존의 단일 계층(single layer) 부호화 방식과 비교하여 SVC의 부가 비트 요구량 및 부호화 효율에 대해 성능 평가를 하였다.

Keywords

References

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Cited by

  1. Selection of Scalable Video Coding Layer Considering the Required Peak Signal to Noise Ratio and Amount of Received Video Data in Wireless Networks vol.17, pp.2, 2016, https://doi.org/10.9728/dcs.2016.17.2.89