서지주요정보
DCT 부호화 방식에의한 감축 영상 데이타의 통계적 특성 = Statistical characteristics of coded video data by DCT coding methods
서명 / 저자 DCT 부호화 방식에의한 감축 영상 데이타의 통계적 특성 = Statistical characteristics of coded video data by DCT coding methods / 민승욱.
저자명 민승욱 ; Min, Seung-Wook
발행사항 [대전 : 한국과학기술원, 1990].
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소장정보

등록번호

8001027

소장위치/청구기호

학술문화관(문화관) 보존서고

MEE 9026

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초록정보

In this thesis the statistical characteristics are investigated for various Discrete Cosine Transform (DCT) coders. They are intraframe DCT, frame difference (FD) DCT and displacement frame difference (DFD) DCT. The measured statistics are mean, variance, correlation coefficient, deviation to average ratio (DAR) and peak to average ratio (PAR) for different sizes in quantizer step and buffer. It is found that as the quantizer step size increases, the mean and variance of output bit rate become smaller, while DAR becomes larger. Also, As the buffer size increases, i.e. the observation interval increases, the burstiness of coded data volume decreases. Through the queuing simulation based on the Discrete Time Markov Chain (DTMC) model the multiplexing characteristics are measured for packet video system. Considered are the packet loss rate, the equivalent bandwidth and the multiplexing gain. It is shown that the multiplexing gain is larger in interframe coding than in intraframe coding, and that it is larger as the step size of quantizer is larger in interframe coding.

서지기타정보

서지기타정보
청구기호 {MEE 9026
형태사항 iv, 82 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Seung-Wook Min
지도교수의 한글표기 : 김재균
지도교수의 영문표기 : Jae-Kyoon Kim
학위논문 학위논문(석사) - 한국과학기술원 : 전기 및 전자공학과,
서지주기 참고문헌 : p. 77-82
주제 Discrete-time systems.
Markov processes.
Statistical communication theory.
Frames (Information theory)
화상 압축. --과학기술용어시소러스
이산 시간계. --과학기술용어시소러스
여현 변환. --과학기술용어시소러스
Markov 과정. --과학기술용어시소러스
통계적 모형. --과학기술용어시소러스
Video compression.
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