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- W2069186929 abstract "비디오 서버에서 압축된 형태로 저장된 비디오 데이터를 화질의 저하 없이 클라이언트로 전송하기 위해서는 프레임당 대역폭을 일정하게 조절하는 방법이 필요하다. 이에 스무딩 기법은 프레임당 비트수가 다른 가변 비트율(VBR : Variable Bit Rate)을 가진 비디오 스트림을 일련의 고정된 전송률로 전송하는 방법이다. 본 논문에서는 비디오 서버에 저장된 비디오 스트림을 클라이언트측으로 전송할 경우 최소의 대역폭과 전송률 변화 횟수를 가지며 비디오 서버의 CPU 오버헤드를 최소화하는 스무딩 알고리즘을 제시한다. 제시된 알고리즘의 효용성을 증명하기 위해 기존의 다른 스무딩 알고리즘들과 다양한 환경에서 비친 분석하였다. The transmission of prerecorded and compressed video data without degradation of picture quality requires video servers to cope with large fluctuations in bandwidth requirement. Bandwidth smoothing techniques can reduce the burst of a variable-bit rate stream by prefetching data at a series of fixed rates and simplifying the allocation of resources in the video servers and the network. In this paper, the proposed smoothing algorithm results in the optimal transmission plans for (1) the smallest bandwidth requirements, (2) the minimum number of changes in transmission rate, and (3) the minimum amount of the server process overhead. The advantages of the proposed smoothing algorithm have been verified through the comparison with the existing smoothing algorithms in diverse environments." @default.
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- W2069186929 date "2002-10-01" @default.
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- W2069186929 title "Minimum Variable Bandwidth Allocation over Group of Pictures for MPEG Video Transmission" @default.
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- W2069186929 doi "https://doi.org/10.3745/kipstc.2002.9c.5.679" @default.
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