07MR2900, Development of Ubiquitous Content Access Technology for Convergence of Broadcasting and Communications,
Yoo Jeong Ju
Abstract
근래의 무선망 및 인터넷의 초고속화에 따라 풍부한 멀티미디어에 대한 사용자의 요구가 증대 되고 있으며 이동 통신의 활성화,및 와 같은 통방융합 서비스의 등장으로 여러 네트워크 망을 통해 다양한 성능을 가진 단말로의DMB(Digital Media Broadcasting)멀티미디어 서비스가 이루어 지고 있다 이러한 환경 변화에 따라 비트율을 줄이기 위한 비디오 압축 부호화 기술뿐만 아니라 시변 .의 전송 조건 전송망 특성 다양한 단말 성능 사용자 선호도 등에 대한 비디오의 적응 기술에 관심이 모아졌으며 그 결과, , ISO/및 의 에서는 비디 IEC MPEG(Moving Picture Experts Group) ITU-T VCEG(Video Coding Experts Group) JVT(Joint Video Team)오 부호화의 스케일러빌러티 를 제공하기 위한 표준화를 진행하였다 본 논문에서는 공간 시(scalability) SVC(Scalable Video Coding) . /간 화질적 스케일러빌러티를 지원하기 위한 의 대표적 표준 기술들에 대해 설명하고 기존의 단일 계층 부호화 방/ SVC , (single layer)식과 비교하여 의 부가 비트 요구량 및 부호화 효율에 대해 성능 평가를 하였다.
KSP Keywords
Digital Media, ITU-T, Moving picture experts group(MPEG), Scalable Video Coding, Single-layer, Video coding experts group(VCEG)
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